Christian W A Pfirrmann

Summary

Affiliation: University Hospital Balgrist
Country: Switzerland

Publications

  1. ncbi request reprint Greater trochanter of the hip: attachment of the abductor mechanism and a complex of three bursae--MR imaging and MR bursography in cadavers and MR imaging in asymptomatic volunteers
    C W Pfirrmann
    Department of Radiology, Veterans Administration Medical Center, San Diego, Calif, USA
    Radiology 221:469-77. 2001
  2. doi request reprint MR arthrography of acetabular cartilage delamination in femoroacetabular cam impingement
    Christian W A Pfirrmann
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 249:236-41. 2008
  3. ncbi request reprint Assessment of fat content in supraspinatus muscle with proton MR spectroscopy in asymptomatic volunteers and patients with supraspinatus tendon lesions
    Christian W A Pfirrmann
    Department of Radiology, University Hospital, Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 232:709-15. 2004
  4. ncbi request reprint Can MR imaging be used to predict the degree and prognosis of peripheral nerve injuries?
    Christian W A Pfirrmann
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    Radiology 247:301-2. 2008
  5. doi request reprint Quadriceps tendinosis and patellar tendinosis in professional beach volleyball players: sonographic findings in correlation with clinical symptoms
    Christian W A Pfirrmann
    Humanomed Center Althofen, Altis Center for Sports Surgery, Moorweg 30, 9330, Althofen, Austria
    Eur Radiol 18:1703-9. 2008
  6. ncbi request reprint Abductor tendons and muscles assessed at MR imaging after total hip arthroplasty in asymptomatic and symptomatic patients
    Christian W A Pfirrmann
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 235:969-76. 2005
  7. ncbi request reprint Variants, pitfalls and asymptomatic findings in wrist and hand imaging
    Christian W A Pfirrmann
    University Hospital Balgrist, Radiology, University of Zurich Switzerland, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Eur J Radiol 56:286-95. 2005
  8. ncbi request reprint MR image-based grading of lumbar nerve root compromise due to disk herniation: reliability study with surgical correlation
    Christian W A Pfirrmann
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 230:583-8. 2004
  9. ncbi request reprint The hamatolunate facet: characterization and association with cartilage lesions--magnetic resonance arthrography and anatomic correlation in cadaveric wrists
    C W A Pfirrmann
    Department of Radiology, Veterans Administration Medical Center, San Diego, CA 92161, USA
    Skeletal Radiol 31:451-6. 2002
  10. ncbi request reprint Selective nerve root blocks for the treatment of sciatica: evaluation of injection site and effectiveness--a study with patients and cadavers
    C W Pfirrmann
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 221:704-11. 2001

Detail Information

Publications149 found, 100 shown here

  1. ncbi request reprint Greater trochanter of the hip: attachment of the abductor mechanism and a complex of three bursae--MR imaging and MR bursography in cadavers and MR imaging in asymptomatic volunteers
    C W Pfirrmann
    Department of Radiology, Veterans Administration Medical Center, San Diego, Calif, USA
    Radiology 221:469-77. 2001
    ..To evaluate trochanteric anatomy with magnetic resonance (MR) imaging, bursography, MR bursography, and anatomic analysis...
  2. doi request reprint MR arthrography of acetabular cartilage delamination in femoroacetabular cam impingement
    Christian W A Pfirrmann
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 249:236-41. 2008
    ..To retrospectively assess the frequency and performance of magnetic resonance (MR) arthrography to help diagnose acetabular cartilage delamination in femoroacetabular impingement (FAI)...
  3. ncbi request reprint Assessment of fat content in supraspinatus muscle with proton MR spectroscopy in asymptomatic volunteers and patients with supraspinatus tendon lesions
    Christian W A Pfirrmann
    Department of Radiology, University Hospital, Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 232:709-15. 2004
    ..To evaluate proton magnetic resonance (MR) spectroscopy in the assessment of lipid content of the supraspinatus muscle in asymptomatic volunteers and patients with supraspinatus tendon lesions...
  4. ncbi request reprint Can MR imaging be used to predict the degree and prognosis of peripheral nerve injuries?
    Christian W A Pfirrmann
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    Radiology 247:301-2. 2008
  5. doi request reprint Quadriceps tendinosis and patellar tendinosis in professional beach volleyball players: sonographic findings in correlation with clinical symptoms
    Christian W A Pfirrmann
    Humanomed Center Althofen, Altis Center for Sports Surgery, Moorweg 30, 9330, Althofen, Austria
    Eur Radiol 18:1703-9. 2008
    ..Quadriceps tendinosis is as common as patellar tendinosis in professional beach volleyball players. Thickening and structure alteration of the quadriceps tendon is associated with anterior knee pain during beach volleyball...
  6. ncbi request reprint Abductor tendons and muscles assessed at MR imaging after total hip arthroplasty in asymptomatic and symptomatic patients
    Christian W A Pfirrmann
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 235:969-76. 2005
    ..To prospectively evaluate magnetic resonance (MR) imaging findings of abductor tendons and muscles in asymptomatic and symptomatic patients after lateral transgluteal total hip arthroplasty (THA)...
  7. ncbi request reprint Variants, pitfalls and asymptomatic findings in wrist and hand imaging
    Christian W A Pfirrmann
    University Hospital Balgrist, Radiology, University of Zurich Switzerland, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Eur J Radiol 56:286-95. 2005
    ....
  8. ncbi request reprint MR image-based grading of lumbar nerve root compromise due to disk herniation: reliability study with surgical correlation
    Christian W A Pfirrmann
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 230:583-8. 2004
    ..72-0.77; for interobserver agreement, kappa = 0.62-0.67). Correlation of image-based grading with surgical grading was high (r = 0.86). The image-based grading system enabled reliable evaluation and reporting of nerve root compromise...
  9. ncbi request reprint The hamatolunate facet: characterization and association with cartilage lesions--magnetic resonance arthrography and anatomic correlation in cadaveric wrists
    C W A Pfirrmann
    Department of Radiology, Veterans Administration Medical Center, San Diego, CA 92161, USA
    Skeletal Radiol 31:451-6. 2002
    ..In conclusion, the hamatolunate facet is a very common anatomic variant. The presence of a hamatolunate facet is associated with cartilage damage in the proximal pole of the hamate...
  10. ncbi request reprint Selective nerve root blocks for the treatment of sciatica: evaluation of injection site and effectiveness--a study with patients and cadavers
    C W Pfirrmann
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 221:704-11. 2001
    ..To relate different types of radiographic contrast material distributions to anatomic compartments by using cadaveric specimens and to relate the injection site to treatment-induced discomfort and therapeutic effect...
  11. ncbi request reprint Joint magnetic resonance imaging: normal variants and pitfalls related to sports injury
    Christian W A Pfirrmann
    Department of Radiology, Orthopedic University Hospital, Zurich, Switzerland
    Radiol Clin North Am 40:167-80. 2002
    ..Thorough knowledge of normal anatomy is crucial in this situation...
  12. ncbi request reprint Cam and pincer femoroacetabular impingement: characteristic MR arthrographic findings in 50 patients
    Christian W A Pfirrmann
    Departments of Radiology and Orthopedics, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 240:778-85. 2006
    ..To retrospectively characterize magnetic resonance (MR) arthrographic findings in patients with cam femoroacetabular impingement (FAI) and in those with pincer FAI...
  13. ncbi request reprint Evaluation of complex joint motion with computer-based analysis of fluoroscopic sequences
    Christian W A Pfirrmann
    Department of Radiology, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    Invest Radiol 37:73-6. 2002
    ..To develop a computer-assisted analysis of complex joint motion based on standard fluoroscopic sequences...
  14. ncbi request reprint What happens to the triangular fibrocartilage complex during pronation and supination of the forearm? Analysis of its morphology and diagnostic assessment with MR arthrography
    C W Pfirrmann
    Department of Radiology, Veterans Administration Medical Center, San Diego, CA 92161, USA
    Skeletal Radiol 30:677-85. 2001
    ..The position of the forearm that allowed the best visualization of normal structures and lesions of the TFCC was determined...
  15. ncbi request reprint Do patients with structural abnormalities of the shoulder experience pain after MR arthrography of the shoulder?
    Isabelle Steurer-Dober
    Department of Radiology, University Hospital Balgrist, Zurich, Switzerland
    Radiology 256:870-8. 2010
    ..To assess the pain course after intraarticular injection of a gadolinium-containing contrast material admixed with anesthetic for magnetic resonance (MR) arthrography of the shoulder in relation to internal derangements of the shoulder...
  16. doi request reprint Assessment of active spinal inflammatory changes in patients with axial spondyloarthritis: validation of whole body MRI against conventional MRI
    Ulrich Weber
    Department of Rheumatology, Balgrist University Hospital, Forchstrasse 340, Zurich, Switzerland
    Ann Rheum Dis 69:648-53. 2010
    ....
  17. doi request reprint Symptomatic magnetic resonance imaging-confirmed lumbar disk herniation patients: a comparative effectiveness prospective observational study of 2 age- and sex-matched cohorts treated with either high-velocity, low-amplitude spinal manipulative therapy or
    Cynthia K Peterson
    Departments of Chiropractic and Radiology, Orthopaedic University Hospital Balgrist, Zurich, Switzerland
    J Manipulative Physiol Ther 36:218-25. 2013
    ....
  18. doi request reprint The Latarjet procedure for the treatment of recurrence of anterior instability of the shoulder after operative repair: a retrospective case series of forty-nine consecutive patients
    Samuel L Schmid
    Department of Orthopaedics, University Hospital Balgrist, University of Zurich, Forchstrasse 340, 8008 Zurich, Switzerland
    J Bone Joint Surg Am 94:e75. 2012
    ..The purpose of this study was to verify the hypothesis that this procedure is also effective for treating recurrent glenohumeral instability after previous operative repair...
  19. doi request reprint Lumbar nerve root injections: a prospective cohort outcomes study comparing age- and gender-matched patients who returned an outcomes-based postal questionnaire with patients who did not return the postal questionnaire
    Marco Lechmann
    Department of Radiology, Orthopaedic University Hospital of Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    Skeletal Radiol 42:1429-35. 2013
    ..The purpose of this study is to investigate if relying on postal questionnaires returned by patients provides an accurate representation of reported outcomes from patients receiving imaging-guided lumbar nerve root injections (NRIs)...
  20. ncbi request reprint Prospective evaluation of two different injection techniques for MR arthrography of the hip
    Sylvain R Duc
    Department of Radiology, University Hospital, Balgrist, Forchstrasse 340, 8008, Zurich, Switzerland
    Eur Radiol 16:473-8. 2006
    ..Both hip puncture techniques were well tolerated. The neck injection technique produced less discomfort and was associated with greater extra-articular contrast leakage...
  21. doi request reprint Articular cartilage and labral lesions of the glenohumeral joint: diagnostic performance of 3D water-excitation true FISP MR arthrography
    Tobias Johannes Dietrich
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    Skeletal Radiol 39:473-80. 2010
    ....
  22. ncbi request reprint Fatty atrophy of supraspinatus and infraspinatus muscles: accuracy of US
    Klaus Strobel
    Department of Radiology, Orthopedic University Hospital, Balgrist, Zurich, Switzerland
    Radiology 237:584-9. 2005
    ..To prospectively evaluate the accuracy of ultrasonography (US) in depicting fatty atrophy of the supraspinatus (SSP) and infraspinatus (ISP) muscles, with magnetic resonance (MR) imaging as the reference standard...
  23. ncbi request reprint Effects of glenoid component version on humeral head displacement and joint reaction forces: an experimental study
    Richard W Nyffeler
    Department of Orthopaedics, University of Zurich, Balgrist Hospital, Zurich, Switzerland
    J Shoulder Elbow Surg 15:625-9. 2006
    ..Therefore, assessment of loosening and instability justifies precise assessment of glenoid component version...
  24. ncbi request reprint Hip MRI: how useful is intraarticular contrast material for evaluating surgically proven lesions of the labrum and articular cartilage?
    Reto Sutter
    1 Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    AJR Am J Roentgenol 202:160-9. 2014
    ..The objective of our study was to prospectively compare the diagnostic performance of MR arthrography and conventional MRI with surgical correlation in the same patient for detecting labrum and articular cartilage defects...
  25. ncbi request reprint Bone marrow changes on STIR MR images of asymptomatic feet and ankles
    Veronika Zubler
    Department of Radiology, University Hospital, Balgrist, Forchstrasse 340, 8008, Zurich, Switzerland
    Eur Radiol 17:3066-72. 2007
    ..5 mm). The median signal intensity for all changes was 5.0 (range 1-10). Bone marrow changes on STIR MR images are commonly detected in asymptomatic feet and ankles. However, such changes tend to be small (<1 cm) or subtle...
  26. ncbi request reprint Hip pain in adults: MR imaging appearance of common causes
    Bernard Mengiardi
    Department of Radiology, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    Eur Radiol 17:1746-62. 2007
    ..This article reviews the differential diagnosis of hip pain arising from the hip and surrounding structures and the role of different imaging methods with emphasis on magnetic resonance imaging where most recent advances have occurred...
  27. ncbi request reprint Elbow stiffness: effectiveness of conventional radiography and CT to explain osseous causes
    Veronika Zubler
    Department of Radiology, Orthopedic University Hospital Balgrist, Ch 8008 Zurich, Switzerland
    AJR Am J Roentgenol 194:W515-20. 2010
    ..The purpose of our study was to evaluate the effectiveness of conventional radiography and CT for explaining the osseous causes of elbow stiffness...
  28. doi request reprint In vitro assessments of reverse glenoid stability using displacement gages are misleading - recommendations for accurate measurements of interface micromotion
    Philippe Favre
    Laboratory for Orthopedic Research, Department of Orthopedics, Balgrist, University of Zurich, Switzerland
    Clin Biomech (Bristol, Avon) 26:917-22. 2011
    ..We hypothesized that a remotely positioned displacement gage measures elastic deformation of the system rather than actual micromotion at the implant/bone interface...
  29. ncbi request reprint Lesser tuberosity osteotomy for total shoulder arthroplasty. Surgical technique
    Christian Gerber
    Department of Orthopedic Surgery, Balgrist Hospital, Forchstrasse 340, 8032 Zurich, Switzerland
    J Bone Joint Surg Am 88:170-7. 2006
    ....
  30. ncbi request reprint Correlation of atrophy and fatty infiltration on strength and integrity of rotator cuff repairs: a study in thirteen patients
    Christian Gerber
    Department of Orthopaedics, University of Zurich, Balgrist, Zurich, Switzerland
    J Shoulder Elbow Surg 16:691-6. 2007
    ..With current repair techniques, atrophy and fatty infiltration appear to be irreversible, despite successful tendon repair. Unexpectedly, not only weak but also very strong muscles are at risk for repair failure...
  31. ncbi request reprint Static posterior humeral head subluxation and total shoulder arthroplasty
    Christian Gerber
    Department of Orthopaedics, University of Zurich, Balgrist University Hospital, Zurich, Switzerland
    J Shoulder Elbow Surg 18:505-10. 2009
    ....
  32. doi request reprint Imaging-guided subacromial therapeutic injections: prospective study comparing abnormalities on conventional radiography with patient outcomes
    Tobias J Dietrich
    1 Department of Radiology, Orthopedic University Hospital Balgrist, University of Zurich, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    AJR Am J Roentgenol 201:865-71. 2013
    ..The purpose of this study was to compare abnormalities detected on conventional shoulder radiography with improvement in pain and shoulder function after subacromial injections...
  33. ncbi request reprint Oedema and fatty degeneration of the soleus and gastrocnemius muscles on MR images in patients with Achilles tendon abnormalities
    Adrienne Hoffmann
    Radiology Department, University Hospital Balgrist Zurich, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Eur Radiol 21:1996-2003. 2011
    ..The purpose of this study was to evaluate the frequency of oedema and fatty degeneration of the soleus and gastrocnemius muscles in patients with Achilles tendon abnormalities...
  34. ncbi request reprint Diagnostic performance of MR arthrography after rotator cuff repair
    Sylvain R Duc
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Zurich CH 8008, Switzerland
    AJR Am J Roentgenol 186:237-41. 2006
    ..The objective of this study was to investigate the diagnostic performance of MR arthrography after rotator cuff repair...
  35. ncbi request reprint Anatomic variants associated with peroneal tendon disorders: MR imaging findings in volunteers with asymptomatic ankles
    Nadja Saupe
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 242:509-17. 2007
    ..To evaluate prospectively, on magnetic resonance (MR) images in volunteers with asymptomatic ankles, various features of anatomic variants that are potentially associated with peroneal tendon disorders...
  36. doi request reprint Sensitivity and specificity of spinal inflammatory lesions assessed by whole-body magnetic resonance imaging in patients with ankylosing spondylitis or recent-onset inflammatory back pain
    Ulrich Weber
    Balgrist University Hospital, Zurich, Switzerland
    Arthritis Rheum 61:900-8. 2009
    ....
  37. doi request reprint How useful is the alpha angle for discriminating between symptomatic patients with cam-type femoroacetabular impingement and asymptomatic volunteers?
    Reto Sutter
    Department of Radiology and Orthopedic Surgery, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    Radiology 264:514-21. 2012
    ..To compare the alpha-angle measurements in volunteers and patients with femoroacetabular impingement (FAI) and to develop potential threshold values...
  38. ncbi request reprint MR arthrography of the hip: diagnostic performance of a dedicated water-excitation 3D double-echo steady-state sequence to detect cartilage lesions
    Patrick R Knuesel
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Zurich CH 8008, Switzerland
    AJR Am J Roentgenol 183:1729-35. 2004
    ....
  39. doi request reprint Neer Award 2007: Reversion of structural muscle changes caused by chronic rotator cuff tears using continuous musculotendinous traction. An experimental study in sheep
    Christian Gerber
    Department of Orthopaedics, University of Zurich, Balgrist, Zurich, Switzerland
    J Shoulder Elbow Surg 18:163-71. 2009
    ..It was the purpose of this experiment to test the hypothesis that slow, continuous elongation of a retracted musculotendinous unit allows reversal of the currently irreversible structural muscle changes...
  40. ncbi request reprint Influence of humeral prosthesis height on biomechanics of glenohumeral abduction. An in vitro study
    Richard W Nyffeler
    Investigation performed at the Department of Orthopaedic Surgery, University of Zurich, Balgrist, Zurich, Switzerland
    J Bone Joint Surg Am 86:575-80. 2004
    ..The purpose of the present study was to determine the effect of humeral prosthesis height on range of motion and on the moment arms of the rotator cuff muscles during glenohumeral abduction...
  41. doi request reprint Changes in shoulder muscle function with humeral position: a graphical description
    Philippe Favre
    Department of Orthopaedics, Balgrist, University of Zurich, Zurich, Switzerland
    J Shoulder Elbow Surg 18:114-21. 2009
    ..Two examples illustrate the use of this data, particularly to clarify clinical issues...
  42. ncbi request reprint Reverse Delta-III total shoulder replacement combined with latissimus dorsi transfer. A preliminary report
    Christian Gerber
    University of Zurich, Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    J Bone Joint Surg Am 89:940-7. 2007
    ..In this preliminary study, we assessed the results of the combination of a latissimus dorsi transfer to the greater tuberosity and a reverse total shoulder arthroplasty in the presence of lost active external rotation...
  43. ncbi request reprint Radiographic and computed tomography analysis of cemented pegged polyethylene glenoid components in total shoulder replacement
    Edward H Yian
    Department of Orthopaedic Surgery, University of Zurich, Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    J Bone Joint Surg Am 87:1928-36. 2005
    ..The purpose of this study was to evaluate, with use of a sensitive and reproducible imaging method, the radiographic and clinical results of total shoulder replacement with a pegged, cemented polyethylene glenoid implant...
  44. ncbi request reprint The effect of component positioning on intrinsic stability of the reverse shoulder arthroplasty
    Philippe Favre
    Laboratory for Orthopaedic Research, Department of Orthopaedics, Balgrist, University of Zurich, Zurich, Switzerland
    J Shoulder Elbow Surg 19:550-6. 2010
    ..This should provide guidelines on how to best position the implant components to decrease the rate of dislocation...
  45. ncbi request reprint Peripheral tear of the triangular fibrocartilage: depiction with MR arthrography of the distal radioulnar joint
    Christoph Rüegger
    Department of Radiology, Balgrist University Hospital, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    AJR Am J Roentgenol 188:187-92. 2007
    ..The aim of this study was to evaluate the accuracy of MR arthrography of the distal radioulnar joint in depiction of peripheral tears of the triangular fibrocartilage...
  46. ncbi request reprint Diagnosis of articular cartilage abnormalities of the knee: prospective clinical evaluation of a 3D water-excitation true FISP sequence
    Sylvain R Duc
    Department of Radiology, University Hospital, Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 243:475-82. 2007
    ..To prospectively evaluate the accuracy of three-dimensional (3D) water-excitation true fast imaging with steady-state precession (FISP) in the assessment of cartilage abnormalities of the knee, by using surgery as the reference standard...
  47. ncbi request reprint Imaging findings predicting the outcome of cervical facet joint blocks
    Lukas Hechelhammer
    Radiology, University of Zurich, Balgrist Hospital, CH 8008, Zurich, Switzerland
    Eur Radiol 17:959-64. 2007
    ..64) nor the grade of osteoarthritis (p=0.49). Pain relief after cervical FJBs does not correlate with morphologic alterations seen on CT. Periarticular FJBs are not less successful than combined intra-/periarticular FJBs...
  48. ncbi request reprint The shoulders of professional beach volleyball players: high prevalence of infraspinatus muscle atrophy
    Georg Lajtai
    Humanomed Center Althofen, Althofen, Austria
    Am J Sports Med 37:1375-83. 2009
    ..Beach volleyball is an Olympic overhead sport. It is not well known which clinical and imaging findings are normal and which are associated with symptoms...
  49. ncbi request reprint Internal knee derangement assessed with 3-minute three-dimensional isovoxel true FISP MR sequence: preliminary study
    Sylvain R Duc
    Department of Radiology, University Hospital Balgrist, Zurich, Switzerland
    Radiology 246:526-35. 2008
    ....
  50. ncbi request reprint Fibrosis and adventitious bursae in plantar fat pad of forefoot: MR imaging findings in asymptomatic volunteers and MR imaging-histologic comparison
    Ueli Studler
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 246:863-70. 2008
    ..To retrospectively evaluate plantar fat pad (PFP) signal intensity alterations in magnetic resonance (MR) imaging studies of asymptomatic volunteers and to compare PFP alterations with histopathologic findings in cadavers and patients...
  51. ncbi request reprint MR arthrography in calcific tendinitis of the shoulder: diagnostic performance and pitfalls
    Christoph Zubler
    Radiology, University Hospital Balgrist, Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Eur Radiol 17:1603-10. 2007
    ..Therefore, MR imaging should not be interpreted without corresponding radiographs...
  52. ncbi request reprint Pisotriquetral joint: assessment with MR imaging and MR arthrography
    Nicolas H Theumann
    Department of Radiology, Veterans Administration Medical Center, 3350 La Jolla Village Dr, San Diego, CA 92161, USA
    Radiology 222:763-70. 2002
    ..To evaluate magnetic resonance (MR) imaging and MR arthrographic findings in the pisotriquetral joint (PTJ) and their contribution to assessment of PTJ osteoarthritis...
  53. doi request reprint Fatty muscle atrophy: prevalence in the hindfoot muscles on MR images of asymptomatic volunteers and patients with foot pain
    Daniel T Schmid
    Departments of Radiology and Orthopedic Surgery, Orthopedic University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 253:160-6. 2009
    ..To determine prevalence and degree of fatty muscle atrophy in plantar foot muscles in asymptomatic volunteers and in patients with foot pain...
  54. ncbi request reprint Cervical nerve root blocks: indications and role of MR imaging
    Klaus Strobel
    Department of Radiology, Orthopedic University Hospital, Zurich, Switzerland
    Radiology 233:87-92. 2004
    ....
  55. ncbi request reprint Cartilaginous defects of the femorotibial joint: accuracy of coronal short inversion time inversion-recovery MR sequence
    Karl Peter Jungius
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 240:482-8. 2006
    ....
  56. ncbi request reprint Metatarsophalangeal joint of the great toe: normal MR, MR arthrographic, and MR bursographic findings in cadavers
    Nicolas H Theumann
    Department of Radiology, Veterans Administration Medical Center, 3350 La Jolla Village Drive, San Diego, CA 92161, USA
    J Comput Assist Tomogr 26:829-38. 2002
    ..To demonstrate the normal anatomy of the metatarsophalangeal (MTP) joint of the great toe with MR imaging, MR arthrography, and MR bursography...
  57. doi request reprint Ligaments and plicae of the elbow: normal MR imaging variability in 60 asymptomatic subjects
    Daniela B Husarik
    Department of Radiology, University Hospital Zurich, Zurich, Switzerland
    Radiology 257:185-94. 2010
    ..To prospectively evaluate the normal variability of ligaments, plicae, and the posterior capitellum on conventional magnetic resonance (MR) images of the elbow in asymptomatic volunteers...
  58. doi request reprint Structure of retracted tendons after staged repair following continuous traction
    Mazda Farshad
    Department of Orthopedics, University of Zurich, Balgrist University Hospital, Forchstrasse 340, 8008, Zurich, Switzerland
    Knee Surg Sports Traumatol Arthrosc 19:2131-7. 2011
    ..We quantified changes in chronically retracted tendons undergoing no repair or a staged repair involving an initial re-lengthening of the musculotendinous unit by traction in a sheep model of massive rotator cuff tear...
  59. ncbi request reprint Effect of selective experimental suprascapular nerve block on abduction and external rotation strength of the shoulder
    Christian Gerber
    Department of Orthopaedics, University of Zurich, Zurich, Switzerland
    J Shoulder Elbow Surg 16:815-20. 2007
    ..The contribution of the infraspinatus to abduction strength is great. In the acute situation, the teres minor does not contribute more than 20% of external rotation strength at any degree of abduction...
  60. ncbi request reprint Intermethod agreement and interobserver correlation of radiologic acromiohumeral distance measurements
    Clement M L Werner
    Department of Orthopaedics, University of Zurich, Balgrist, Zurich, Switzerland
    J Shoulder Elbow Surg 17:237-40. 2008
    ..It is, therefore, possible to use the AHD read on MRI or CT studies for prognostic reasons, provided the values obtained are converted accordingly and remembering that the correlation of the values is only moderate...
  61. doi request reprint Latissimus dorsi transfer to restore external rotation with reverse shoulder arthroplasty: a biomechanical study
    Philippe Favre
    Laboratory for Orthopaedic Research, Department of Orthopaedics, Balgrist, University of Zurich, Zurich, Switzerland
    J Shoulder Elbow Surg 17:650-8. 2008
    ..An insertion site on the posterior side of the greater tuberosity (adjacent to the teres minor insertion) produced a greater external rotation moment arm...
  62. ncbi request reprint Total shoulder arthroplasty with an uncemented soft-metal-backed glenoid component
    Sandro F Fucentese
    Department of Orthopaedics, University of Zurich, Balgrist University Hospital, Zurich, Switzerland
    J Shoulder Elbow Surg 19:624-31. 2010
    ..The purpose of this study was to investigate the clinical and radiographic results associated with use of a novel uncemented soft-metal-backed glenoid component (SMBG), with a minimum follow-up of 2 years...
  63. ncbi request reprint Teres minor integrity predicts outcome of latissimus dorsi tendon transfer for irreparable rotator cuff tears
    John G Costouros
    University of Zurich, Balgrist University Hospital, Zurich, Switzerland
    J Shoulder Elbow Surg 16:727-34. 2007
    ..In conclusion, when performing LDTT for massive irreparable posterosuperior rotator cuff tears, fatty infiltration of the teres minor should be considered prior to surgery, as it is predictive of outcome...
  64. ncbi request reprint Latissimus dorsi transfer for the treatment of irreparable rotator cuff tears
    Christian Gerber
    Department of Orthopaedics, University of Zurich, Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    J Bone Joint Surg Am 88:113-20. 2006
    ..Latissimus dorsi transfer to the greater tuberosity has been proposed for the treatment of irreparable tears associated with severe functional impairment and chronic, disabling pain...
  65. doi request reprint Amplitude and strength of muscle contraction are reduced in experimental tears of the rotator cuff
    Dominik C Meyer
    Balgrist University Hospital, University of Zurich, Zurich, Switzerland
    Am J Sports Med 39:1456-61. 2011
    ..Chronic tendon tears lead to retraction, fatty infiltration, and atrophy of the respective muscle. These muscle changes are decision-making criteria in rotator cuff tear management...
  66. doi request reprint Femoral and tibial torsion measurement in children and adolescents: comparison of 3D models based on low-dose biplanar radiography and low-dose CT
    Andrea B Rosskopf
    1 Department of Radiology, Balgrist Orthopedic University Hospital, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    AJR Am J Roentgenol 202:W285-91. 2014
    ..The purpose of this study was to evaluate the interchangeability and reliability of femoral and tibial torsion measurements in children using 3D models based on biplanar radiography compared with CT measurements...
  67. doi request reprint Assessment of glenoid inclination on routine clinical radiographs and computed tomography examinations of the shoulder
    Alexander Maurer
    Department of Orthopedic Surgery, University Hospital, Balgrist, Zurich, Switzerland
    J Shoulder Elbow Surg 21:1096-103. 2012
    ..The purpose of this study was to develop an accurate and reproducible measurement for glenoid inclination on standardized anterior-posterior (AP) radiographs and on computed tomography (CT) images...
  68. ncbi request reprint Extrinsic carpal ligaments: normal MR arthrographic appearance in cadavers
    Nicolas H Theumann
    Department of Radiology, Veterans Administration Medical Center, 3350 La Jolla Village Dr, San Diego, CA 92161, USA
    Radiology 226:171-9. 2003
    ..To describe the normal magnetic resonance (MR) arthrographic anatomy of the major carpal ligaments (excluding scapholunate and lunotriquetral ligaments) and their osseous attachments by using standard imaging planes...
  69. ncbi request reprint Articular cartilage defects detected with 3D water-excitation true FISP: prospective comparison with sequences commonly used for knee imaging
    Sylvain R Duc
    Department of Radiology, University Hospital, Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 245:216-23. 2007
    ....
  70. ncbi request reprint Fluoroscopic and magnetic resonance cross-sectional imaging assessments of radial and ulnar torsion profiles in volunteers
    Charles E Dumont
    Department of Orthopaedic Surgery, Clinic Balgrist, University of Zurich, Zurich, Switzerland
    J Hand Surg Am 32:501-9. 2007
    ..This study was designed to compare the reliability of 2 methods for the determination of the torsion profile of both forearm bones and to assess side differences further in volunteers...
  71. ncbi request reprint Are radiographic trochanteric surface irregularities associated with abductor tendon abnormalities?
    Lenca Steinert
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Zurich 8008, Switzerland
    Radiology 257:754-63. 2010
    ..To assess the association between trochanteric surface irregularities seen on conventional radiographs and magnetic resonance (MR) evidence of abductor tendon abnormalities...
  72. ncbi request reprint Magic angle effect in MR imaging of ankle tendons: influence of foot positioning on prevalence and site in asymptomatic subjects and cadaveric tendons
    Bernard Mengiardi
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, 8008, Zurich, Switzerland
    Eur Radiol 16:2197-206. 2006
    ..MAE is almost absent in the prone body position with plantar flexion of the foot...
  73. ncbi request reprint Femoral antetorsion: comparing asymptomatic volunteers and patients with femoroacetabular impingement
    Reto Sutter
    Department of Radiology and Orthopedic Surgery, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    Radiology 263:475-83. 2012
    ....
  74. doi request reprint PROPELLER technique to improve image quality of MRI of the shoulder
    Tobias J Dietrich
    Department of Radiology, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    AJR Am J Roentgenol 197:W1093-100. 2011
    ....
  75. ncbi request reprint Degeneration of the long biceps tendon: comparison of MRI with gross anatomy and histology
    Florian M Buck
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    AJR Am J Roentgenol 193:1367-75. 2009
    ..The objective of our study was to relate alterations in biceps tendon diameter and signal on MR images to gross anatomy and histology...
  76. ncbi request reprint Clinical course of knees with asymptomatic meniscal abnormalities: findings at 2-year follow-up after MR imaging-based diagnosis
    Marco Zanetti
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 237:993-7. 2005
    ..To prospectively evaluate the clinical course of asymptomatic meniscal lesions diagnosed by using magnetic resonance (MR) imaging...
  77. ncbi request reprint Pain and other side effects after MR arthrography: prospective evaluation in 1085 patients
    Nadja Saupe
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    Radiology 250:830-8. 2009
    ..To prospectively evaluate pain and other side effects after magnetic resonance (MR) arthrography...
  78. doi request reprint Evolution of nonoperatively treated symptomatic isolated full-thickness supraspinatus tears
    Sandro F Fucentese
    Department of Orthopedics, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    J Bone Joint Surg Am 94:801-8. 2012
    ....
  79. ncbi request reprint Long-term outcome after structural failure of rotator cuff repairs
    Bernhard Jost
    Department of Orthopedics, University of Zurich, Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    J Bone Joint Surg Am 88:472-9. 2006
    ..2 years postoperatively. It was the purpose of this study to determine the clinical and structural outcomes of these reruptures in the same twenty patients after a longer period of follow-up...
  80. ncbi request reprint Mechanical and handling properties of braided polyblend polyethylene sutures in comparison to braided polyester and monofilament polydioxanone sutures
    Daniel M Wüst
    Department of Orthopedics, University of Zurich, Balgrist, Zurich, Switzerland
    Arthroscopy 22:1146-53. 2006
    ..This study was designed to comprehensively compare the mechanical properties of 4 types of braided polyblend sutures with widely used braided polyester and monofilament polydioxanone sutures...
  81. ncbi request reprint The biomechanical role of the subscapularis in latissimus dorsi transfer for the treatment of irreparable rotator cuff tears
    Clement M L Werner
    Department of Orthopaedics, University of Zurich, Balgrist, Switzerland
    J Shoulder Elbow Surg 15:736-42. 2006
    ..The inferior functional results of latissimus dorsi transfer in the presence of subscapularis dysfunction are explained by the loss of centering of the humeral head upon abduction and elevation if subscapularis function is deficient...
  82. doi request reprint A computerized analysis-by-synthesis algorithm improves precision of linear wear measurements in total hip replacements
    Claudio Dora
    Department of Orthopedics, University of Zurich, Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    J Orthop Res 26:1121-6. 2008
    ..84 mm). Due to the availability of the full CAD data of the implant and to further automation of the measuring process, the newly proposed method provided improved precision in measuring polyethylene wear...
  83. doi request reprint Long biceps tendon: normal position, shape, and orientation in its groove in neutral position and external and internal rotation
    Florian M Buck
    Department of Radiology, Orthopedic University Hospital Balgrist, Uniklinik Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    Radiology 261:872-81. 2011
    ....
  84. ncbi request reprint Supraacetabular fossa (pseudodefect of acetabular cartilage): frequency at MR arthrography and comparison of findings at MR arthrography and arthroscopy
    Tobias J Dietrich
    Department of Radiology and Orthopedic Surgery, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    Radiology 263:484-91. 2012
    ..To evaluate the frequency of the supraacetabular fossa (SAF) (pseudodefect of acetabular cartilage) at magnetic resonance (MR) arthrography of the hip and to compare the MR findings with those from arthroscopy...
  85. ncbi request reprint Patients with suspected meniscal tears: prevalence of abnormalities seen on MRI of 100 symptomatic and 100 contralateral asymptomatic knees
    Marco Zanetti
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstr 340, Ch 8008 Zurich, Switzerland
    AJR Am J Roentgenol 181:635-41. 2003
    ..The prevalence of various types of meniscal tears and other MR abnormalities was determined...
  86. doi request reprint Fluoroscopically guided diagnostic and therapeutic injections into foot articulations: report of short-term patient responses and comparison of outcomes between various injection sites
    Cynthia K Peterson
    Department of Radiology Orthopaedic University Hospital of Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    AJR Am J Roentgenol 197:949-53. 2011
    ..This study includes a large sample size facilitating the investigation of postinjection pain reduction overall and by specific articulation...
  87. doi request reprint The posterolateral fluoroscopy-guided injection technique into the posterior subtalar joint: description of the procedure and pilot study on patient outcomes
    Florian M Buck
    Radiology, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    Skeletal Radiol 41:699-705. 2012
    ..To describe a posterolateral fluoroscopy-guided injection technique into the posterior subtalar joint and to report patient outcomes 1 month post-injection...
  88. ncbi request reprint Lesser metatarsophalangeal joints: standard MR imaging, MR arthrography, and MR bursography--initial results in 48 cadaveric joints
    Aurea V R Mohana-Borges
    Department of Radiology, Veterans Administration Medical Center, 3350 La Jolla Village Dr, San Diego, CA 92161, USA
    Radiology 227:175-82. 2003
    ..To delineate the normal magnetic resonance (MR) imaging anatomy of the lesser metatarsophalangeal (MTP) joints in a cadaveric model and compare the MR arthrographic and MR bursographic findings with the standard MR imaging findings...
  89. doi request reprint Loss of the sclerotic line of the glenoid on anteroposterior radiographs of the shoulder: a diagnostic sign for an osseous defect of the anterior glenoid rim
    Linas Jankauskas
    Department of Orthopaedics, University of Zurich, Uniklinik Balgrist, Zurich, Switzerland
    J Shoulder Elbow Surg 19:151-6. 2010
    ..The integrity of the glenoid defines the surgical treatment in anterior shoulder instabilities. The reliability of plain radiographs to detect anterior glenoid rim deficiencies was determined...
  90. ncbi request reprint Fat content of lumbar paraspinal muscles in patients with chronic low back pain and in asymptomatic volunteers: quantification with MR spectroscopy
    Bernard Mengiardi
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 240:786-92. 2006
    ....
  91. ncbi request reprint Imaging of patellar cartilage with a 2D multiple-echo data image combination sequence
    Marius R Schmid
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Zurich CH 8008, Switzerland
    AJR Am J Roentgenol 184:1744-8. 2005
    ..We sought to evaluate the diagnostic value of a 2D multiple-echo data image combination (MEDIC) MRI sequence in the detection of patellar cartilage defects...
  92. ncbi request reprint Abnormalities of the lesser tuberosity on radiography and MRI: association with subscapularis tendon lesions
    Ueli Studler
    Department of Radiology, University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    AJR Am J Roentgenol 191:100-6. 2008
    ..The objective of our study was to retrospectively evaluate the association between abnormalities of the lesser tuberosity and subscapularis tendon lesions...
  93. doi request reprint Ultrasound for the evaluation of femoroacetabular impingement of the cam type. Diagnostic performance of qualitative criteria and alpha angle measurements
    Florian M Buck
    Department of Radiology, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    Eur Radiol 21:167-75. 2011
    ..To develop and assess a technique to evaluate cam type femoroacetabular impingement (FAI) using ultrasound (US)...
  94. ncbi request reprint Spring ligament complex: MR imaging-anatomic correlation and findings in asymptomatic subjects
    Bernard Mengiardi
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 237:242-9. 2005
    ..To use magnetic resonance (MR) imaging to assess the anatomy of the spring ligament complex (SLC) in cadaveric feet and to prospectively evaluate the MR imaging depiction of this complex in asymptomatic subjects...
  95. ncbi request reprint Detection and quantification of glenohumeral joint effusion: reliability of ultrasound
    Veronika Zubler
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Eur Radiol 21:1858-64. 2011
    ..To evaluate reliability of ultrasound for detection and quantification of glenohumeral joint effusion...
  96. doi request reprint Magnetic resonance histologic correlation in rotator cuff tendons
    Florian M Buck
    Department of Radiology, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    J Magn Reson Imaging 32:165-72. 2010
    ..To relate histologic changes in rotator cuff tendons to the appearance on T1-weighted as well as fat-suppressed T2-weighted and proton density-weighted magnetic resonance imaging (MRI) sequences...
  97. doi request reprint Exogenous collagen cross-linking recovers tendon functional integrity in an experimental model of partial tear
    Gion Fessel
    Department of Orthopedics, University Hospital Zurich, Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    J Orthop Res 30:973-81. 2012
    ..We conclude that genipin cross-linking of injured tendons holds potential for arresting tendon tear progression, and that implications of the treatment on matrix remodeling in living tendons should now be investigated...
  98. doi request reprint Dynamic imaging and function of partial supraspinatus tendon tears
    Christian Gerber
    Department of Orthopaedics, University Hospital, Balgrist, Zurich, Switzerland
    Arthroscopy 27:1180-6. 2011
    ..It was the purpose of this study to identify and document normal and abnormal supraspinatus tendon function in vivo using real-time ultrasound...
  99. ncbi request reprint Association of osteopenia of the humeral head with full-thickness rotator cuff tears
    Dominik C Meyer
    Department of Orthopaedics, University of Zurich, Balgrist, Zurich, Switzerland
    J Shoulder Elbow Surg 13:333-7. 2004
    ..For optimal suture fixation to bone, sutures or anchors should be positioned subcortically or medially under the articular surface...
  100. ncbi request reprint Frozen shoulder: MR arthrographic findings
    Bernard Mengiardi
    Department of Radiology, Orthopedic University Clinic Balgrist, Forchstrasse 340, Ch 8008 Zurich, Switzerland
    Radiology 233:486-92. 2004
    ..To evaluate the magnetic resonance (MR) arthrographic findings in patients with frozen shoulder...
  101. ncbi request reprint Effect of experimental suprascapular nerve block on active glenohumeral translations in vivo
    Clement M L Werner
    Department of Orthopaedics, University of Zurich, Uniklinik Balgrist, Forchstrasse 340, Zurich 8008, Switzerland
    J Orthop Res 24:491-500. 2006
    ..The hypothesis that static or dynamic superior humeral head displacement is prevented by active-supra- and/or infraspinatus muscle function must therefore be rejected, for the shoulder with a structurally intact muscle-tendon-bone unit...