C Benjamin Ma

Summary

Affiliation: University of California
Country: USA

Publications

  1. ncbi request reprint Bone morphogenetic proteins-signaling plays a role in tendon-to-bone healing: a study of rhBMP-2 and noggin
    C Benjamin Ma
    University of California, San Francisco, Department of Orthopaedic Surgery, 500 Parnassus Avenue, MU 320W, San Francisco, CA 94143
    Am J Sports Med 35:597-604. 2007
  2. ncbi request reprint Hamstring anterior cruciate ligament reconstruction: a comparison of bioabsorbable interference screw and endobutton-post fixation
    C Benjamin Ma
    Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
    Arthroscopy 20:122-8. 2004
  3. doi request reprint Can pre-operative measures predict quadruple hamstring graft diameter?
    C Benjamin Ma
    University of California, San Francisco, San Francisco, California 94143, United States
    Knee 17:81-3. 2010
  4. ncbi request reprint Biomechanical evaluation of arthroscopic rotator cuff repairs: double-row compared with single-row fixation
    C Benjamin Ma
    Department of Orthopaedic Surgery, University of California San Francisco, 500 Parnassus Avenue, MU 320W, San Francisco, CA 94143 0728, USA
    J Bone Joint Surg Am 88:403-10. 2006
  5. doi request reprint Prevalence of pathologic findings in asymptomatic knees of marathon runners before and after a competition in comparison with physically active subjects-a 3.0 T magnetic resonance imaging study
    Robert Stahl
    Musculoskeletal and Quantitative Imaging Group, Department of Radiology, University of California, San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107 0946, USA
    Skeletal Radiol 37:627-38. 2008
  6. pmc Relationship between trabecular bone structure and articular cartilage morphology and relaxation times in early OA of the knee joint using parallel MRI at 3 T
    R I Bolbos
    Musculoskeletal Quantitative Imaging Research, Department of Radiology, University of California San Francisco, San Francisco, CA 94107, USA
    Osteoarthritis Cartilage 16:1150-9. 2008
  7. doi request reprint Evaluating rotational kinematics of the knee in ACL-ruptured and healthy patients using 3.0 Tesla magnetic resonance imaging
    Bryan D Haughom
    School of Medicine, University of California, San Francisco UCSF, San Francisco, CA 94143 0729, USA
    Knee Surg Sports Traumatol Arthrosc 20:663-70. 2012
  8. pmc Abnormal tibiofemoral kinematics following ACL reconstruction are associated with early cartilage matrix degeneration measured by MRI T1rho
    Bryan Haughom
    University of California San Francisco, School of Medicine, USA
    Knee 19:482-7. 2012
  9. doi request reprint Magnetic resonance imaging evaluation of knee kinematics after anterior cruciate ligament reconstruction with anteromedial and transtibial femoral tunnel drilling techniques
    William W Schairer
    School of Medicine, University of California, San Francisco, 94143 0728, USA
    Arthroscopy 27:1663-70. 2011
  10. doi request reprint Magnetic resonance imaging of 3-dimensional in vivo tibiofemoral kinematics in anterior cruciate ligament-reconstructed knees
    R Dana Carpenter
    Department of Radiology, University of California, San Francisco, California 94143, USA
    Arthroscopy 25:760-6. 2009

Collaborators

Detail Information

Publications41

  1. ncbi request reprint Bone morphogenetic proteins-signaling plays a role in tendon-to-bone healing: a study of rhBMP-2 and noggin
    C Benjamin Ma
    University of California, San Francisco, Department of Orthopaedic Surgery, 500 Parnassus Avenue, MU 320W, San Francisco, CA 94143
    Am J Sports Med 35:597-604. 2007
    ..Successful anterior cruciate ligament reconstruction requires secure healing between tendon and bone...
  2. ncbi request reprint Hamstring anterior cruciate ligament reconstruction: a comparison of bioabsorbable interference screw and endobutton-post fixation
    C Benjamin Ma
    Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
    Arthroscopy 20:122-8. 2004
    ....
  3. doi request reprint Can pre-operative measures predict quadruple hamstring graft diameter?
    C Benjamin Ma
    University of California, San Francisco, San Francisco, California 94143, United States
    Knee 17:81-3. 2010
    ..Regardless of other variables, 42% of females will have tunnel diameters of 7mm or less. An alternative graft choice should be discussed pre-operatively if graft sizes may be of concern for the tall and large female patients...
  4. ncbi request reprint Biomechanical evaluation of arthroscopic rotator cuff repairs: double-row compared with single-row fixation
    C Benjamin Ma
    Department of Orthopaedic Surgery, University of California San Francisco, 500 Parnassus Avenue, MU 320W, San Francisco, CA 94143 0728, USA
    J Bone Joint Surg Am 88:403-10. 2006
    ..The objective of this study was to compare the initial cyclic loading and load-to-failure properties of double-row fixation with those of three commonly used single-row techniques...
  5. doi request reprint Prevalence of pathologic findings in asymptomatic knees of marathon runners before and after a competition in comparison with physically active subjects-a 3.0 T magnetic resonance imaging study
    Robert Stahl
    Musculoskeletal and Quantitative Imaging Group, Department of Radiology, University of California, San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107 0946, USA
    Skeletal Radiol 37:627-38. 2008
    ..To compare the diagnostic performance of cartilage-dedicated magnetic resonance imaging (MRI) sequences at 3.0 T...
  6. pmc Relationship between trabecular bone structure and articular cartilage morphology and relaxation times in early OA of the knee joint using parallel MRI at 3 T
    R I Bolbos
    Musculoskeletal Quantitative Imaging Research, Department of Radiology, University of California San Francisco, San Francisco, CA 94107, USA
    Osteoarthritis Cartilage 16:1150-9. 2008
    ..To evaluate trabecular bone structure in relationship with cartilage parameters in distal femur and proximal tibia of the human knee at 3Tesla (3T) using high-resolution magnetic resonance imaging (MRI) with parallel imaging...
  7. doi request reprint Evaluating rotational kinematics of the knee in ACL-ruptured and healthy patients using 3.0 Tesla magnetic resonance imaging
    Bryan D Haughom
    School of Medicine, University of California, San Francisco UCSF, San Francisco, CA 94143 0729, USA
    Knee Surg Sports Traumatol Arthrosc 20:663-70. 2012
    ..The hypothesis of the study is that there is greater tibial rotation (TR) in women than men, and also in ACL-deficient than healthy knees...
  8. pmc Abnormal tibiofemoral kinematics following ACL reconstruction are associated with early cartilage matrix degeneration measured by MRI T1rho
    Bryan Haughom
    University of California San Francisco, School of Medicine, USA
    Knee 19:482-7. 2012
    ..Our study aimed to evaluate kinematics following ACL-reconstruction, cartilage health (using T(1ρ) MRI), and assess whether altered kinematics following ACL-reconstruction are associated with early cartilage degeneration...
  9. doi request reprint Magnetic resonance imaging evaluation of knee kinematics after anterior cruciate ligament reconstruction with anteromedial and transtibial femoral tunnel drilling techniques
    William W Schairer
    School of Medicine, University of California, San Francisco, 94143 0728, USA
    Arthroscopy 27:1663-70. 2011
    ....
  10. doi request reprint Magnetic resonance imaging of 3-dimensional in vivo tibiofemoral kinematics in anterior cruciate ligament-reconstructed knees
    R Dana Carpenter
    Department of Radiology, University of California, San Francisco, California 94143, USA
    Arthroscopy 25:760-6. 2009
    ..The purpose of this study was to use magnetic resonance imaging (MRI) to determine 3-dimensional knee kinematics after anterior cruciate ligament (ACL) reconstruction...
  11. pmc Cartilage in anterior cruciate ligament-reconstructed knees: MR imaging T1{rho} and T2--initial experience with 1-year follow-up
    Xiaojuan Li
    Musculoskeletal Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California, San Francisco, China Basin Landing, 185 Berry St, Suite 350, San Francisco, CA 94107, USA xiaojuan li
    Radiology 258:505-14. 2011
    ....
  12. doi request reprint The relationship between tear severity, fatty infiltration, and muscle atrophy in the supraspinatus
    Jeffrey J Barry
    Department of Orthopaedic Surgery, University of California San Francisco, CA 94158, USA
    J Shoulder Elbow Surg 22:18-25. 2013
    ..We hypothesize that fatty infiltration and muscle atrophy are two distinct processes independently associated with supraspinatus tears...
  13. pmc Longitudinal analysis of T1ρ and T2 quantitative MRI of knee cartilage laminar organization following microfracture surgery
    Alexander A Theologis
    School of Medicine, University of California, San Francisco UCSF, San Francisco, CA 94158, USA
    Knee 19:652-7. 2012
    ..To quantitate longitudinally the radiographic properties of different layers of repaired tissue following microfracture (MFx) surgery using T(1ρ) and T(2) magnetic resonance imaging (MRI)...
  14. doi request reprint T1rho, T2 and focal knee cartilage abnormalities in physically active and sedentary healthy subjects versus early OA patients--a 3.0-Tesla MRI study
    Robert Stahl
    Department of Radiology, University of California, San Francisco, CA 94107 0946, USA
    Eur Radiol 19:132-43. 2009
    ..Thus, T1rho and T2 could be a parameter suited to identify active healthy subjects at higher risk for developing cartilage pathology...
  15. pmc In vivo T1rho quantitative assessment of knee cartilage after anterior cruciate ligament injury using 3 Tesla magnetic resonance imaging
    Radu I Bolbos
    Musculo skeletal Quantitative Imaging Research, Department of Radiology, University of California, San Francisco, San Francisco, California 94107, USA
    Invest Radiol 43:782-8. 2008
    ....
  16. doi request reprint Do cartilage repair procedures prevent degenerative meniscus changes?: longitudinal t1ρ and morphological evaluation with 3.0-T MRI
    Pia M Jungmann
    Musculoskeletal and Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA
    Am J Sports Med 40:2700-8. 2012
    ..Cartilage repair (CR) procedures are widely accepted for treatment of isolated cartilage defects in the knee joint. However, it is not well known whether these procedures prevent degenerative joint disease...
  17. doi request reprint Evaluating rotational kinematics of the knee in ACL reconstructed patients using 3.0 Tesla magnetic resonance imaging
    Abbas Kothari
    University of California, San Francisco, Department of Orthopaedic Surgery, 1500 Owens Street, San Francisco, CA 94158, USA
    Knee 19:648-51. 2012
    ..We also hypothesize that ACL reconstructed knees will have greater rotational laxity when compared to healthy contralateral knees...
  18. doi request reprint Comparison of completely knotless and hybrid double-row fixation systems: a biomechanical study
    Thomas Chu
    Biomechanical Testing Facility, UCSF SFGH Orthopaedic Trauma Institute, San Francisco, California, USA
    Arthroscopy 27:479-85. 2011
    ....
  19. ncbi request reprint Detection of posttraumatic cartilage injury using quantitative T1rho magnetic resonance imaging. A report of two cases with arthroscopic findings
    Jesus Lozano
    Department of Orthopaedic Surgery, University of California at San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107, USA
    J Bone Joint Surg Am 88:1349-52. 2006
  20. doi request reprint Magnetic resonance T(1 rho) imaging of osteoarthritis: a rabbit ACL transection model
    Jesus Lozano
    University of California, San Francisco School of Medicine, San Francisco, CA 94158, USA
    Magn Reson Imaging 27:611-6. 2009
    ....
  21. ncbi request reprint MRI analysis of in vivo meniscal and tibiofemoral kinematics in ACL-deficient and normal knees
    Sandra J Shefelbine
    Department of Orthopaedic Surgery, University of California, San Francisco, 500 Parnassus Avenue, MU 320W, San Francisco, California 94143 0728, USA
    J Orthop Res 24:1208-17. 2006
    ..These results help explain the increased risk of meniscal tears and osteoarthritis in chronic ACL deficient knees...
  22. pmc T1rho relaxation time of the meniscus and its relationship with T1rho of adjacent cartilage in knees with acute ACL injuries at 3 T
    R I Bolbos
    Musculo skeletal Quantitative Imaging Research MQIR, Department of Radiology, University of California, San Francisco UCSF, San Francisco, CA 94107, USA
    Osteoarthritis Cartilage 17:12-8. 2009
    ....
  23. doi request reprint Comparison of T1rho relaxation times between ACL-reconstructed knees and contralateral uninjured knees
    Alexander A Theologis
    Department of Orthopaedic Surgery, San Francisco School of Medicine, University of California, 500 Parnassus Ave, MU320W, San Francisco, CA, 94143, USA
    Knee Surg Sports Traumatol Arthrosc 22:298-307. 2014
    ..The goal of this study is to compare the cartilage of anterior cruciate ligament (ACL)-reconstructed and uninjured contralateral knees using T 1ρ MRI 12-16 months after ACL reconstructions...
  24. pmc Assessment of cartilage-dedicated sequences at ultra-high-field MRI: comparison of imaging performance and diagnostic confidence between 3.0 and 7.0 T with respect to osteoarthritis-induced changes at the knee joint
    Robert Stahl
    Musculoskeletal and Quantitative Imaging Group, Department of Radiology, University of California, San Francisco, CA 94107 0946, USA
    Skeletal Radiol 38:771-83. 2009
    ..0 T ultra-high-field (UHF) magnetic resonance imaging (MRI) and to compare imaging performance and diagnostic confidence concerning osteoarthritis (OA)-induced changes at 7.0 and 3.0 T MRI...
  25. doi request reprint Biomechanical comparison of transosseous versus suture anchor repair of the subscapularis tendon
    Daniel J Wheeler
    Department of Orthopaedic Surgery, University of California, San Francisco, CA 94143 0728, USA
    Arthroscopy 26:444-50. 2010
    ..We also performed real-time measurement of contact area and pressure of the repair site under rotational loads...
  26. pmc Evaluation of bone bruises and associated cartilage in anterior cruciate ligament-injured and -reconstructed knees using quantitative t(1ρ) magnetic resonance imaging: 1-year cohort study
    Alexander A Theologis
    School of Medicine, University of California, San Francisco, California, USA
    Arthroscopy 27:65-76. 2011
    ..To quantitate bone marrow edema-like lesions (BMELs) and the radiologic properties of cartilage in knees with acute anterior cruciate ligament (ACL) injuries using T(1ρ) magnetic resonance imaging over a 1-year period...
  27. doi request reprint Patients' attitudes and factors in their selection of grafts for anterior cruciate ligament reconstruction
    Sunny C Cheung
    Department of Orthopaedic Surgery, Sports Medicine and Shoulder Surgery, University of California, San Francisco, United States
    Knee 19:49-54. 2012
    ..Older patients were more concerned with autograft donor site morbidity, and patients with a higher level of education were less averse to allograft...
  28. ncbi request reprint All-inside meniscus repair: a systematic review
    Jesus Lozano
    University of California, San Francisco School of Medicine, CA 94143, USA
    Clin Orthop Relat Res 455:134-41. 2007
    ..Given the paucity of randomized controlled studies comparing different all-inside meniscal repairs, no definite conclusions can be made regarding the difference in clinical outcomes of various all-inside meniscal repair devices...
  29. pmc Comparative study of imaging at 3.0 T versus 1.5 T of the knee
    Scott Wong
    Department of Radiology, University of California, San Francisco, CA 94143 0628, USA
    Skeletal Radiol 38:761-9. 2009
    ..5 and 3.0 T in the same patients concerning image quality and visualization of cartilage pathology and to assess diagnostic performance using arthroscopy as a standard of reference...
  30. doi request reprint The presence of fatty infiltration in the infraspinatus: its relation with the condition of the supraspinatus tendon
    Sunny Cheung
    University of California, San Francisco, USA
    Arthroscopy 27:463-70. 2011
    ..We aim to determine the prevalence of fatty infiltration and tears in the infraspinatus and to identify any associated risk factors...
  31. ncbi request reprint Intraosseous ganglion of the glenoid
    Jeffrey E Wong
    University of California, Irvine, USA
    Am J Orthop (Belle Mead NJ) 39:E19-21. 2010
    ..Intraosseous ganglions in the glenoid are uncommon. This case report illustrates the management and outcome of this uncommon but symptomatic shoulder problem...
  32. ncbi request reprint Exertional thigh pain in a runner
    Anthony Luke
    Department of Orthopedics, University of California, San Francisco, 500 Parnassus Avenue, MU 320W, San Francisco, CA 94143 0728, USA
    Curr Sports Med Rep 5:251-3. 2006
  33. ncbi request reprint Measurement of posterior tibial translation in the posterior cruciate ligament-reconstructed knee: significance of the shift in the reference position
    C Benjamin Ma
    Musculoskeletal Research Center, Department of Orthopaedic Surgery University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
    Am J Sports Med 31:843-8. 2003
    ..The measurement of anterior or posterior tibial translation depends on the existence of a repeatable and accurate reference position of the knee from which the corresponding translation is measured...
  34. ncbi request reprint An unusual presentation of synovial chondromatosis of the knee: a case report
    Jaicharan Iyengar
    School of Medicine, University of California San Francisco, San Francisco, CA, USA
    Clin J Sport Med 17:157-9. 2007
  35. doi request reprint Shoulder biomechanics
    Roberto Lugo
    Sports Medicine and Shoulder Service, University of California, San Francisco, San Francisco, CA 914143, USA
    Eur J Radiol 68:16-24. 2008
    ..The goal of this article is to review how these structures interact to provide optimal stability and how failure of some of these mechanisms can lead to shoulder joint pathology...
  36. ncbi request reprint In vivo 3T spiral imaging based multi-slice T(1rho) mapping of knee cartilage in osteoarthritis
    Xiaojuan Li
    Musculo skeletal Quantitative Imaging Research MQIR, Department of Radiology, University of California, San Francisco UCSF, 94107, USA
    Magn Reson Med 54:929-36. 2005
    ..The results suggest that T(1rho) relaxation times may be a promising clinical tool for osteoarthritis detection and treatment monitoring...
  37. ncbi request reprint Biomechanical evaluation of arthroscopic rotator cuff stitches
    C Benjamin Ma
    The Hospital for Special Surgery, New York, NY 10021, USA
    J Bone Joint Surg Am 86:1211-6. 2004
    ..The goal of this study was to determine the biomechanical properties of the massive cuff stitch and to compare it with other stitches commonly used for rotator cuff repair...
  38. ncbi request reprint An arthroscopic stitch for massive rotator cuff tears: the Mac stitch
    John D MacGillivray
    Sports Medicine and Shoulder Service, The Hospital for Special Surgery, New York, New York, USA
    Arthroscopy 20:669-71. 2004
    ..The Mac stitch is a simple arthroscopic stitch that can be used for small and massive rotator cuff repairs...
  39. ncbi request reprint The effect of osteoclastic activity on tendon-to-bone healing: an experimental study in rabbits
    Scott A Rodeo
    Laboratory for Soft Tissue Research, The Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
    J Bone Joint Surg Am 89:2250-9. 2007
    ....
  40. ncbi request reprint Interobserver agreement in the classification of rotator cuff tears using magnetic resonance imaging
    Edwin E Spencer
    Shoulder and Elbow Institute, Knoxville Orthopaedic Clinic, Knoxville, TN 37922, USA
    Am J Sports Med 36:99-103. 2008
    ....
  41. doi request reprint Magnetic resonance imaging of the ankle at 3.0 Tesla and 1.5 Tesla in human cadaver specimens with artificially created lesions of cartilage and ligaments
    Jan S Bauer
    Department of Radiology, Technical University, Munich, Germany
    Invest Radiol 43:604-11. 2008
    ..To compare magnetic resonance imaging of the ankle joint at 1.5 Tesla (T) and 3.0 T in the assessment of cartilage and ligament pathology in fresh human cadaver specimens...