Christian Gerber

Summary

Affiliation: University Hospital Balgrist
Country: Switzerland

Publications

  1. ncbi 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. ncbi 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
  3. ncbi 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
  4. ncbi 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
  5. ncbi 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
  6. ncbi 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
  7. ncbi 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
  8. ncbi 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
  9. ncbi 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, , Switzerland
    Radiology 247:301-2. 2008
  10. ncbi 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

Publications125 found, 100 shown here

  1. ncbi 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. ncbi 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)...
  3. ncbi 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...
  4. ncbi 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...
  5. ncbi 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
    ....
  6. ncbi 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...
  7. ncbi 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...
  8. ncbi 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...
  9. ncbi 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, , Switzerland
    Radiology 247:301-2. 2008
  10. ncbi 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 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...
  12. ncbi 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)...
  13. ncbi 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...
  14. ncbi 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...
  15. ncbi 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...
  16. ncbi 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...
  17. ncbi 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...
  18. ncbi 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
    ....
  19. ncbi 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
    ....
  20. ncbi 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...
  21. ncbi 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...
  22. ncbi 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...
  23. ncbi 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...
  24. ncbi 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
    ..Further improvement in implant design and fixation technique appears to be necessary for long-term success of cemented glenoid components...
  25. ncbi 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...
  26. ncbi 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...
  27. ncbi 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...
  28. ncbi 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...
  29. ncbi 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...
  30. ncbi 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...
  31. ncbi 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...
  32. ncbi 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...
  33. ncbi 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...
  34. ncbi 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...
  35. ncbi 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...
  36. ncbi 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
    ....
  37. ncbi 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
    ..Overall, the reruptures that had been present at 3.2 years did not increase in size. We also found that reruptures of the supraspinatus that had been smaller than 400 mm(2) had the potential to heal...
  38. ncbi 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...
  39. ncbi 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...
  40. ncbi 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 Institute for Biomechanics, Swiss Federal Institute of Technology ETH, Wolfgang Pauli Str 16, 8093 Zurich, Switzerland
    J Orthop Res 30:973-81. 2012
    ..2011 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 30:973-981, 2012...
  41. ncbi Influence of psychomotor skills and innervation patterns on results of latissimus dorsi tendon transfer for irreparable rotator cuff tears
    Clement M L Werner
    Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
    J Shoulder Elbow Surg 17:22S-28S. 2008
    ..Psychomotor skills testing appears to be a new, potential method by which to predict the outcome of latissimus dorsi transfer...
  42. ncbi Association of osteopenia of the humeral head with full-thickness rotator cuff tears
    Dominik C Meyer
    Department of Orthopaedics, , 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...
  43. ncbi 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...
  44. ncbi 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...
  45. ncbi Comparison of the subjective shoulder value and the Constant score
    Michael K Gilbart
    Department of Orthopaedic Surgery, University of British Columbia, Vancouver, Zurich, Switzerland
    J Shoulder Elbow Surg 16:717-21. 2007
    ..The SSV is an easily administered, responsive, and valid measure of shoulder function. The SSV may offer an improvement over the CS in assessing shoulder instability patients, as the CS may overestimate the results of these patients...
  46. ncbi Subacromial pressures vary with simulated sleep positions
    Clement M L Werner
    Department of Surgery, Division of Trauma Surgery, University Hospital Zurich, Zurich, Switzerland
    J Shoulder Elbow Surg 19:989-93. 2010
    ..Consequently, atrophy and rupture can affect tendon healing after rotator cuff repair, thus potentially discrediting the outcome of surgery...
  47. ncbi Quantitative analysis of muscle and tendon retraction in chronic rotator cuff tears
    Dominik C Meyer
    Orthopedic Department, Balgrist University Hospital, University of Zurich, Ch 8008 Zurich, Switzerland
    Am J Sports Med 40:606-10. 2012
    ..However, it is currently unknown to what extent the muscle and tendon contribute to the degree of total retraction. Further understanding of this may possibly influence the strategy of musculotendinous reconstruction...
  48. ncbi Asymmetric atrophy of the supraspinatus muscle following tendon tear
    Dominik C Meyer
    Department of Orthopaedics, , Balgrist, Forchstrasse 340, , Switzerland
    J Orthop Res 23:254-8. 2005
    ..Muscular changes are not simply a consequence of muscle disuse, but dependent on architectural changes in the muscle...
  49. ncbi Influence of component positioning on impingement in conventional total shoulder arthroplasty
    Philippe Favre
    Laboratory for Orthopaedic Research, Department of Orthopaedics, Balgrist, University of Zurich, Forchstrasse 340, 8008 Zurich, Switzerland
    Clin Biomech (Bristol, Avon) 23:175-83. 2008
    ..This study tests the hypothesis that certain implant component positioning configurations may lead to impingement within the physiological range of motion...
  50. ncbi Adipogenic and myogenic gene expression in rotator cuff muscle of the sheep after tendon tear
    Eric Frey
    Department of Orthopaedics, University of Zurich, Balgrist, Zurich, Switzerland
    J Orthop Res 27:504-9. 2009
    ..The results point to a crucial role of the transcription factors PPARgamma, C/EBPbeta, and Myf-5 in impairment and regeneration of rotator cuff muscles after tendon tears in sheep...
  51. ncbi Osteochondral glenoid allograft for biologic resurfacing of the glenoid: biomechanical comparison of novel design concepts
    Christian Gerber
    Department of Orthopaedics, University of Zurich, Balgrist University Hospital, Zurich, Switzerland
    J Shoulder Elbow Surg 20:909-16. 2011
    ..We hypothesised that a new concept for a press-fit osteochondral allograft glenoid replacement would restore the anatomic geometry of the glenoid, with primary stability guaranteed by the construct through press-fit fixation alone...
  52. ncbi Automated muscle wrapping using finite element contact detection
    Philippe Favre
    Laboratory for Orthopaedic Research, Department of Orthopaedics, Balgrist, University of Zurich, Switzerland
    J Biomech 43:1931-40. 2010
    ..These advantages may be valuable for both general and subject-specific musculoskeletal modeling...
  53. ncbi Correlation of psychomotor findings and the outcome of a physical therapy program to treat scapular dyskinesis
    Clement M L Werner
    Department of Orthopaedics, University of Zurich, Uniklinik Balgrist, Zurich, Switzerland
    J Shoulder Elbow Surg 20:69-72. 2011
    ..This pilot study was performed to investigate the influence of psychomotor skills on the outcome of a specific nonoperative program (scapular dyskinesis-program) to treat scapular dyskinesis...
  54. ncbi The clinical and structural long-term results of open repair of massive tears of the rotator cuff
    Matthias A Zumstein
    Department of Orthopedics, University of Zurich, Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    J Bone Joint Surg Am 90:2423-31. 2008
    ..The purpose of this study was to reassess the same patients to determine the long-term functional and structural results...
  55. ncbi Association of a large lateral extension of the acromion with rotator cuff tears
    Richard W Nyffeler
    Department of Orthopaedic Surgery, University of Zurich, Balgrist, Switzerland
    J Bone Joint Surg Am 88:800-5. 2006
    ..The purpose of this study was to quantify the lateral extension of the acromion in patients with a full-thickness rotator cuff tear and in patients with an intact rotator cuff...
  56. ncbi Non-purulent low-grade infection as cause of pain following shoulder surgery: preliminary results
    Alberto G Schneeberger
    Shoulder and Elbow Surgery, Seefeldstr 27, 8008, Zurich, Switzerland
    Chir Organi Mov 93:S71-7. 2009
    ..Low-grade infection of the shoulder can be a cause of persistent pain and stiffness. The results of antibiotic treatment are disappointing. Further studies are necessary to analyse this difficult pathology...
  57. ncbi 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...
  58. ncbi Reverse total shoulder arthroplasty
    Christian Gerber
    Department of Orthopaedic Surgery, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
    J Am Acad Orthop Surg 17:284-95. 2009
    ..Radiographic and clinical results appear to deteriorate over time. Proper patient selection and attention to technical details are needed to reduce the currently high complication rate...
  59. ncbi Predictors of scapular notching in patients managed with the Delta III reverse total shoulder replacement
    Ryan W Simovitch
    Department of Orthopaedics, University of Zurich, Uniklinik Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    J Bone Joint Surg Am 89:588-600. 2007
    ..The purpose of the present study was to evaluate the clinical relevance of notching and to determine the anatomic and radiographic parameters that predispose to its occurrence...
  60. ncbi Arthroscopic knot tying on a single suture limb in case of a torn suture
    Dominik C Meyer
    Department of Orthopedic Surgery, University of Zurich, Balgrist, Zurich, Switzerland
    Arthroscopy 25:925-8. 2009
    ..We present a tool and method that allow completion of the knot on a single suture limb. Alternatively, the method can be used to perform all-inside endoscopic or arthroscopic knot tying without removal of the instrument from the body...
  61. ncbi Helical cutting as a new method for tendon-lengthening in continuity
    Mazda Farshad
    Department of Orthopaedics, University Hospital Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    J Bone Joint Surg Am 93:733-8. 2011
    ..The purpose of this study was to develop a new method to increase the potential range of attainable tendon length while preserving a degree of tendon continuity...
  62. ncbi Suprascapular nerve palsy after the Latarjet procedure
    Gerardo J Maquieira
    Department of Orthopaedic Surgery, , Balgrist, Switzerland
    J Shoulder Elbow Surg 16:e13-5. 2007
  63. ncbi Measurements of shoulder mobility by patient and surgeon correlate poorly: a prospective study
    Hannes A Rudiger
    Department of Orthopaedics, University of Zurich, Balgrist, Switzerland
    J Shoulder Elbow Surg 17:255-60. 2008
    ..Combining surgeon and patient based information in the same study is inappropriate. Comparisons and meta-analysis of shoulder studies need to take the type of data acquisition into account...
  64. ncbi Subscapularis muscle function and structure after total shoulder replacement with lesser tuberosity osteotomy and repair
    Christian Gerber
    Department of Orthopedic Surgery, Balgrist Hospital, Forchstrasse 340, 8032 Zurich, Switzerland
    J Bone Joint Surg Am 87:1739-45. 2005
    ....
  65. ncbi Combined intra- and extra-articular arthroscopic treatment of entrapment neuropathy of the infraspinatus branches of the suprascapular nerve caused by a periglenoidal ganglion cyst
    Clement M L Werner
    Department of Orthopaedics, University of Zurich, Balgrist, Zurich, Switzerland
    Arthroscopy 23:328.e1-3. 2007
    ..The technique described combines the advantages of open and arthroscopic surgery, allowing one to address the underlying intra-articular pathology, completely evacuate the ganglion cyst, and protect the suprascapular nerve...
  66. ncbi 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...
  67. ncbi 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...
  68. ncbi 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
    ....
  69. ncbi 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...
  70. ncbi 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
    ..40) and moderate for the T1-weighted spin-echo sequence (kappa = 0.55). CONCLUSION: The 3D double-echo steady-state sequence optimized for cartilage imaging improves lesion conspicuity but does not improve diagnostic performance...
  71. ncbi 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
    ....
  72. ncbi 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
    ..Weighted kappa value was 0.63. CONCLUSION: Contour defects of femorotibial cartilage can be detected with reasonable accuracy with routine STIR sequence...
  73. ncbi Ligamentous and tendinous anatomy of the intermetacarpal and common carpometacarpal joints: evaluation with MR imaging and MR arthrography
    Nicolas H Theumann
    Department of Radiology, Veterans Administration Medical Center, San Diego, CA, USA
    J Comput Assist Tomogr 26:145-52. 2002
    ..MR arthrography does not significantly improve the visualization of these complex structures...
  74. ncbi 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
    ..MR bursography did not enhance the visualization of these structures. CONCLUSIONS: MR imaging and MR arthrography allow accurate visualization of the important anatomic structures in and about the MTP joint of the great toe...
  75. ncbi 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...
  76. ncbi 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
    ....
  77. ncbi 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...
  78. ncbi Articular cartilage lesions of the glenohumeral joint: diagnostic effectiveness of MR arthrography and prevalence in patients with subacromial impingement syndrome
    Daniel V Guntern
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, 8008 Zurich, Switzerland
    Radiology 226:165-70. 2003
    ..The performance of MR arthrography in the detection of glenohumeral cartilage lesions is moderate...
  79. ncbi 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
    ....
  80. ncbi MR imaging of tendons and ligaments of the midfoot
    Bernard Mengiardi
    Department of Radiology, Orthopedic University Hospital Balgrist, Zurich, Switzerland
    Semin Musculoskelet Radiol 9:187-98. 2005
    ..In addition, we discuss clinical aspects of these disorders...
  81. ncbi 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...
  82. ncbi Lactate and T (2) measurements of synovial aspirates at 1.5 T: differentiation of septic from non-septic arthritis
    Edzard Wiener
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, CH 8008, Zurich, Switzerland
    Skeletal Radiol 37:743-8. 2008
    ..The aim of this study was to differentiate septic from non-septic arthritis by measuring lactate concentration with (1)H magnetic resonance spectroscopy (HMRS) and by estimating total protein content with the assessment of T (2) values...
  83. ncbi Anterior tibial tendon abnormalities: MR imaging findings
    Bernard Mengiardi
    Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, CH-8008 Zurich, Switzerland
    Radiology 235:977-84. 2005
    ..CONCLUSION: Characteristic findings of ATT abnormalities include tendon thickening (> or =5 mm) and diffuse or posterior signal intensity abnormalities of the tendon within 3 cm from the distal point of insertion...
  84. ncbi 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...
  85. ncbi 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...
  86. ncbi Improved visualization of collateral ligaments of the ankle: multiplanar reconstructions based on standard 2D turbo spin-echo MR images
    Sylvain R Duc
    From the Departments of Radiology, University Hospital, Balgrist, Forchstrasse 340, 8008, Zurich, Switzerland
    Eur Radiol 17:1162-71. 2007
    ..Multiplanar reconstructions of 2D turbo spin-echo images improve the visualization of the tibionavicular and calcaneofibular ligaments and strengthen diagnostic confidence for these ligaments...
  87. ncbi 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
    ....
  88. ncbi 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...
  89. ncbi 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
    ..CONCLUSION: MR imaging and/or MR arthrography allows visualization of all anatomic structures of the PTJ. MR arthrography improves visualization of findings of osteoarthritis...
  90. ncbi 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...
  91. ncbi What the shoulder surgeon would like to know from MR imaging
    Bernhard Jost
    Department of Orthopaedics, , Uniklinik Balgrist, Forchstrasse 340, , Switzerland
    Magn Reson Imaging Clin N Am 12:161-8, vii. 2004
  92. ncbi Severe airway obstruction during arthroscopic shoulder surgery
    Stephan Blumenthal
    Department of Anesthesiology, Orthopedic University Clinic Balgrist, Zurich, Switzerland
    Anesthesiology 99:1455-6. 2003
  93. ncbi A pathomechanical concept explains muscle loss and fatty muscular changes following surgical tendon release
    Dominik C Meyer
    Department of Orthopaedic Surgery, University of Zurich, Balgrist, Forchstr 340, 8008 Zurich, Switzerland
    J Orthop Res 22:1004-7. 2004
    ..Fatty infiltration is therefore not seen as a degenerative process but a necessary rearrangement of the tissue after macroarchitectural changes caused by musculo-tendinous retraction...
  94. ncbi Mechanical strength of arthroscopic rotator cuff repair techniques: an in vitro study
    Alberto G Schneeberger
    Department of Orthopaedic Surgery, University of Zurich, Balgrist, Zurich, Switzerland
    J Bone Joint Surg Am 84:2152-60. 2002
    ..The goal of this study was to analyze the mechanical properties following arthroscopic techniques for rotator cuff repair and to evaluate possible alternative techniques...
  95. ncbi Preoperative radiological and electrophysiological evaluation in 100 adolescent idiopathic scoliosis patients
    Oliver N Hausmann
    Department of Orthopedic Surgery, University Hospital Balgrist, , Forchstrasse 340, 8008, Zurich, Switzerland
    Eur Spine J 12:501-6. 2003
    ..The relevance of the latter findings is not yet clear, but pre-operative tSSEP examinations offer the possibility of assessing alterations in spinal cord function that are undetectable by clinical examination...