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    Seth C. Gamradt, MD

    TitleAssociate Professor of Clinical Orthopaedic Surgery
    SchoolKeck School of Medicine of USC
    DepartmentOrthopaedic Surgery
    AddressHCT 1520 San Pablo Street
    Health Sciences Campus
    Los Angeles California 90033
    Phone+1 323 442 5860
    vCardDownload vCard
      Other Positions
      TitleDirector, Orthopaedic Athletic Medicine


      Collapse Overview 
      Collapse Overview
      Dr. Seth Gamradt is a specialist in the field of orthopaedic surgery and sports medicine at the Keck Medical Center of USC. Dr. Gamradt is the Director of Orthopaedic Athletic Medicine for USC Athletics. Dr. Gamradt’s practice has an emphasis on arthroscopic shoulder surgery; arthroscopic knee surgery and ligament reconstruction (ACL surgery); shoulder replacement; and elbow arthroscopy/ligament reconstruction. He has a special interest in caring for athletes of all ages and is a team physician for the USC Trojans. Dr. Gamradt is also a team physician for United States Women’s Soccer. A native of Minnesota, Dr. Gamradt attended college at Pepperdine University where he graduated Magna Cum Laude. Dr. Gamradt then graduated with honors from Weill Cornell Medical College in New York City. He completed his residency training in Orthopaedic Surgery at UCLA during which he completed a one-year research fellowship. After residency, Dr. Gamradt completed a sports medicine and shoulder surgery fellowship at the top-ranked Hospital for Special Surgery in New York City. During fellowship, Dr. Gamradt was an assistant team physician to the New York Giants football team. Prior to his appointment at USC, Dr. Gamradt spent many years as a team physician and orthopaedic surgeon at UCLA. Dr. Gamradt is part of the exclusive international association comprised of shoulder and elbow surgeons: The American Shoulder and Elbow Surgeons. He is one of the “Top Doctors” as ranked by US News and World Report. Dr. Gamradt has been involved in both clinical and laboratory research for over 10 years and is the author of numerous peer-reviewed research articles, book chapters, and presentations. Dr. Gamradt is on the editorial board of the journal: Techniques in Shoulder and Elbow Surgery and The Journal of Bone and Joint Surgery Sports Medicine Highlights.


      Collapse Biography 
      Collapse Awards and Honors
      ACESS2014Elected to Association of Clinical Elbow and Shoulder Surgeons
      American Shoulder and Elbow Surgeons 2014Elected to American Shoulder and Elbow Surgeons
      2015America’s Top Doctor’s Award
      Sports Health 2015David T. Sisk Award for Best Original Research
      Los Angeles Magazine2016Super Doctor
      Castle Connolly2016America's Top Doctors

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      Collapse Bibliographic 
      Collapse Publications
      Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
      List All   |   Timeline
      1. Gamradt S. Using Small Intestine Submucosa to Augment Repair of Moderate to Large Rotator Cuff Tears Did Not Reduce Repair Failures. J Bone Joint Surg Am. 2017 May 17; 99(10):884. PMID: 28509830.
        View in: PubMed
      2. Hernandez J, Gamradt S, Morcos D. Femoral Fracture Following Acute Trauma in a Female Collegiate Swimmer. J Orthop Sports Phys Ther. 2016 Nov; 46(11):1010. PMID: 27802795.
        View in: PubMed
      3. Narvy SJ, Didinger TC, Lehoang D, Vangsness CT, Tibone JE, Hatch GF, Omid R, Osorno F, Gamradt S. Direct Cost Analysis of Outpatient Arthroscopic Rotator Cuff Repair in Medicare and Non-Medicare Populations. Orthop J Sports Med. 2016 Oct; 4(10):2325967116668829. PMID: 27826595.
        View in: PubMed
      4. Mehran N, Photopoulos CD, Narvy SJ, Romano R, Gamradt S, Tibone JE. Epidemiology of Operative Procedures in an NCAA Division I Football Team Over 10 Seasons. Orthop J Sports Med. 2016 Jul; 4(7):2325967116657530. PMID: 27504464; PMCID: PMC4954547.
      5. Petrigliano FA, Bezrukov N, Gamradt S, SooHoo NF. Factors predicting complication and reoperation rates following surgical fixation of proximal humeral fractures. J Bone Joint Surg Am. 2014 Sep 17; 96(18):1544-51. PMID: 25232078.
        View in: PubMed
      6. Villacis D, Yi A, Jahn R, Kephart CJ, Charlton T, Gamradt S, Romano R, Tibone JE, Hatch GF. Prevalence of Abnormal Vitamin D Levels Among Division I NCAA Athletes. Sports Health. 2014 Jul; 6(4):340-7. PMID: 24982708; PMCID: PMC4065560.
      7. Zhang AL, Montgomery SR, Ngo SS, Hame SL, Wang JC, Gamradt S. Arthroscopic versus open shoulder stabilization: current practice patterns in the United States. Arthroscopy. 2014 Apr; 30(4):436-43. PMID: 24560907.
        View in: PubMed
      8. Zhang AL, Montgomery SR, Ngo SS, Hame SL, Wang JC, Gamradt S. Analysis of rotator cuff repair trends in a large private insurance population. Arthroscopy. 2013 Apr; 29(4):623-9. PMID: 23375667.
        View in: PubMed
      9. Montgomery SR, Petrigliano FA, Gamradt S. Failed rotator cuff surgery, evaluation and decision making. Clin Sports Med. 2012 Oct; 31(4):693-712. PMID: 23040554.
        View in: PubMed
      10. Hame SL, Nguyen V, Ellerman J, Ngo SS, Wang JC, Gamradt S. Complications of arthroscopic meniscectomy in the older population. Am J Sports Med. 2012 Jun; 40(6):1402-5. PMID: 22495145.
        View in: PubMed
      11. Gamradt S, Gelber J, Zhang AL. Shoulder function and pain level after revision of failed reverse shoulder replacement to hemiarthroplasty. Int J Shoulder Surg. 2012 Apr; 6(2):29-35. PMID: 22787331; PMCID: PMC3391782.
      12. Zhang AL, Kreulen C, Ngo SS, Hame SL, Wang JC, Gamradt S. Demographic trends in arthroscopic SLAP repair in the United States. Am J Sports Med. 2012 May; 40(5):1144-7. PMID: 22328710.
        View in: PubMed
      13. Montgomery SR, Petrigliano FA, Gamradt S. Biologic augmentation of rotator cuff repair. Curr Rev Musculoskelet Med. 2011 Dec; 4(4):221-30. PMID: 22021012; PMCID: PMC3261240.
      14. Adler RS, Johnson KM, Fealy S, Maderazo A, Gallo RA, Gamradt S, Warren RF. Contrast-enhanced sonographic characterization of the vascularity of the repaired rotator cuff: utility of maximum intensity projection imaging. J Ultrasound Med. 2011 Aug; 30(8):1103-9. PMID: 21795486.
        View in: PubMed
      15. Cadet ER, Adler RS, Gallo RA, Gamradt S, Warren RF, Cordasco FA, Fealy S. Contrast-enhanced ultrasound characterization of the vascularity of the repaired rotator cuff tendon: short-term and intermediate-term follow-up. J Shoulder Elbow Surg. 2012 May; 21(5):597-603. PMID: 21783386.
        View in: PubMed
      16. Gallo RA, Gamradt S, Mattern CJ, Cordasco FA, Craig EV, Dines DM, Warren RF. Instability after reverse total shoulder replacement. J Shoulder Elbow Surg. 2011 Jun; 20(4):584-90. PMID: 21167744.
        View in: PubMed
      17. Bernthal NM, Gamradt S, Kay RM, Wren TA, Cuomo AV, Reid J, Bales J, Otsuka NY. Static and dynamic gait parameters before and after multilevel soft tissue surgery in ambulating children with cerebral palsy. J Pediatr Orthop. 2010 Mar; 30(2):174-9. PMID: 20179566.
        View in: PubMed
      18. Gamradt S, Gallo RA, Adler RS, Maderazo A, Altchek DW, Warren RF, Fealy S. Vascularity of the supraspinatus tendon three months after repair: characterization using contrast-enhanced ultrasound. J Shoulder Elbow Surg. 2010 Jan; 19(1):73-80. PMID: 19525129.
        View in: PubMed
      19. Brophy RH, Gamradt S, Ellis SJ, Barnes RP, Rodeo SA, Warren RF, Hillstrom H. Effect of turf toe on foot contact pressures in professional American football players. Foot Ankle Int. 2009 May; 30(5):405-9. PMID: 19439139.
        View in: PubMed
      20. Gamradt S, Brophy RH, Barnes R, Warren RF, Thomas Byrd JW, Kelly BT. Nonoperative treatment for proximal avulsion of the rectus femoris in professional American football. Am J Sports Med. 2009 Jul; 37(7):1370-4. PMID: 19307329.
        View in: PubMed
      21. Brophy RH, MacKenzie CR, Gamradt S, Barnes RP, Rodeo SA, Warren RF. The diagnosis and management of psoriatic arthritis in a professional football player presenting with a knee effusion: a case report. Clin J Sport Med. 2008 Jul; 18(4):369-71. PMID: 18614892.
        View in: PubMed
      22. Williams RJ, Gamradt S. Articular cartilage repair using a resorbable matrix scaffold. Instr Course Lect. 2008; 57:563-71. PMID: 18399610.
        View in: PubMed
      23. Gamradt S, Brophy R, Barnes R, Birchansky S, Rodeo SA, Warren RF, Apuzzo MA. Incidental findings in cerebral imaging: arachnoid cyst in a professional football player. Clin J Sport Med. 2008 Jan; 18(1):97-9. PMID: 18185049.
        View in: PubMed
      24. Brockmeier SF, Dodson CC, Gamradt S, Coleman SH, Altchek DW. Arthroscopic intratendinous repair of the delaminated partial-thickness rotator cuff tear in overhead athletes. Arthroscopy. 2008 Aug; 24(8):961-5. PMID: 18657747.
        View in: PubMed
      25. Brophy RH, Gamradt S, Barnes RP, Powell JW, DelPizzo JJ, Rodeo SA, Warren RF. Kidney injuries in professional American football: implications for management of an athlete with 1 functioning kidney. Am J Sports Med. 2008 Jan; 36(1):85-90. PMID: 17986635.
        View in: PubMed
      26. Cuomo AV, Gamradt S, Kim CO, Pirpiris M, Gates PE, McCarthy JJ, Otsuka NY. Health-related quality of life outcomes improve after multilevel surgery in ambulatory children with cerebral palsy. J Pediatr Orthop. 2007 Sep; 27(6):653-7. PMID: 17717466.
        View in: PubMed
      27. Gamradt S, Abe N, Bahamonde ME, Lee YP, Nelson SD, Lyons KM, Lieberman JR. Tracking expression of virally mediated BMP-2 in gene therapy for bone repair. Clin Orthop Relat Res. 2006 Sep; 450:238-45. PMID: 16702923; PMCID: PMC4291079.
      28. Puk CK, Miller DJ, Gamradt S, Wu BM, McAllister DR. The effects of short-term stimulation on fibroblast spreading in an in vitro 3D system. J Biomed Mater Res A. 2006 Mar 15; 76(4):665-73. PMID: 16294325.
        View in: PubMed
      29. Feeley BT, Krenek L, Liu N, Hsu WK, Gamradt S, Schwarz EM, Huard J, Lieberman JR. Overexpression of noggin inhibits BMP-mediated growth of osteolytic prostate cancer lesions. Bone. 2006 Feb; 38(2):154-66. PMID: 16126463.
        View in: PubMed
      30. Feeley BT, Gamradt S, Hsu WK, Liu N, Krenek L, Robbins P, Huard J, Lieberman JR. Influence of BMPs on the formation of osteoblastic lesions in metastatic prostate cancer. J Bone Miner Res. 2005 Dec; 20(12):2189-99. PMID: 16294272.
        View in: PubMed
      31. Whang PG, Schwarz EM, Gamradt S, Dougall WC, Lieberman JR. The effects of RANK blockade and osteoclast depletion in a model of pure osteoblastic prostate cancer metastasis in bone. J Orthop Res. 2005 Nov; 23(6):1475-83. PMID: 16005175.
        View in: PubMed
      32. Sugiyama O, An DS, Kung SP, Feeley BT, Gamradt S, Liu NQ, Chen IS, Lieberman JR. Lentivirus-mediated gene transfer induces long-term transgene expression of BMP-2 in vitro and new bone formation in vivo. Mol Ther. 2005 Mar; 11(3):390-8. PMID: 15727935.
        View in: PubMed
      33. Gamradt S, Feeley BT, Liu NQ, Roostaeian J, Lin YQ, Zhu LX, Sharma S, Dubinett SM, Lieberman JR. The effect of cyclooxygenase-2 (COX-2) inhibition on human prostate cancer induced osteoblastic and osteolytic lesions in bone. Anticancer Res. 2005 Jan-Feb; 25(1A):107-15. PMID: 15816526.
        View in: PubMed
      34. Whang PG, Gamradt S, Gates JJ, Lieberman JR. Effects of the proteasome inhibitor bortezomib on osteolytic human prostate cancer cell metastases. Prostate Cancer Prostatic Dis. 2005; 8(4):327-34. PMID: 16130017.
        View in: PubMed
      35. Gamradt S, Wang JC. Lumbar disc arthroplasty. Spine J. 2005 Jan-Feb; 5(1):95-103. PMID: 15653090.
        View in: PubMed
      36. Gamradt S, Lieberman JR. Genetic modification of stem cells to enhance bone repair. Ann Biomed Eng. 2004 Jan; 32(1):136-47. PMID: 14964729.
        View in: PubMed
      37. Gamradt S, Lieberman JR. Bone graft for revision hip arthroplasty: biology and future applications. Clin Orthop Relat Res. 2003 Dec; (417):183-94. PMID: 14646716.
        View in: PubMed
      38. Scaduto AA, Gamradt S, Yu WD, Huang J, Delamarter RB, Wang JC. Perioperative complications of threaded cylindrical lumbar interbody fusion devices: anterior versus posterior approach. J Spinal Disord Tech. 2003 Dec; 16(6):502-7. PMID: 14657745.
        View in: PubMed
      39. Waters RV, Gamradt S, Asnis P, Vickery BH, Avnur Z, Hill E, Bostrom M. Systemic corticosteroids inhibit bone healing in a rabbit ulnar osteotomy model. Acta Orthop Scand. 2000 Jun; 71(3):316-21. PMID: 10919307.
        View in: PubMed
      40. Bostrom MP, Gamradt S, Asnis P, Vickery BH, Hill E, Avnur Z, Waters RV. Parathyroid hormone-related protein analog RS-66271 is an effective therapy for impaired bone healing in rabbits on corticosteroid therapy. Bone. 2000 May; 26(5):437-42. PMID: 10773582.
        View in: PubMed
      41. Butterfield LH, Jilani SM, Chakraborty NG, Bui LA, Ribas A, Dissette VB, Lau R, Gamradt S, Glaspy JA, McBride WH, Mukherji B, Economou JS. Generation of melanoma-specific cytotoxic T lymphocytes by dendritic cells transduced with a MART-1 adenovirus. J Immunol. 1998 Nov 15; 161(10):5607-13. PMID: 9820539.
        View in: PubMed
      42. Gamradt S, Kats LB. Impact of chaparral wildfire-induced sedimentation on oviposition of stream-breeding California newts (Taricha torosa). Oecologia. 1997 May; 110(4):546-549. PMID: 28307248.
        View in: PubMed
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