John O’Shea MD

John O’Shea MD

Dr. John O’Shea specializes in disorders of the knee, which allows him to treat all age groups with a variety of conditions from athletic injuries to arthritic conditions. These treatments include knee arthroscopy, ACL & ligament reconstruction, knee replacement surgery, and kneecap realignment. He also performs a type of partial knee replacement called KineMatch® Patello-Femoral Replacement (PFR).

As an orthopedic surgeon, he enjoys returning people back to their active lifestyles using both conservative and surgical approaches. When surgery is not the best option, Dr. O’Shea appreciates situations when he is able to improve someone’s knee condition with a nonoperative, conservative approach. 

Outside of work, he enjoys hiking, swimming, cooking, music, guitar, and spending time with his family.

Other Activities

Member, American Academy of Orthopaedic Surgeons

Member, Oregon Medical Association

Member, Medical Society of Metropolitan Portland

Member, Oregon Association of Orthopaedic Surgeons


Fellowship, Methodist Sports Medicine, Indianapolis, IN, 2000

Residency, University of Virginia, Charlottesville, VA, 1998

Internship, University of Virginia, Charlottesville, VA, 1993

MD, Georgetown, Washington, DC, 1992

BS, University of Connecticut, Storrs, CT, 1985


Orthopedic Surgery


Chairperson, Department of Orthopaedics, Providence Portland Medical Center

Team Doctor, Central Catholic High School Football Team, Portland, OR, 2003 – Present


Portland Monthly Magazine, “Top Doctors”, 2024


Shelbourne KD, O’Shea JJ. The Natural History of Nonoperatively Treated Posterior Cruciate Ligament Injuries. Sports Medicine and Arthroscopy Review, 1999.

Shelbourne KD, O’Shea JJ. Revision ACL Reconstruction Using the Contra-lateral Bone Patella Tendon-Bone Autograft for a Previous Intra-articular ACL Reconstruction. Instructional Course Lectures, Volume 51, 2002.

Shelbourne KD, O’Shea JJ. Anterior Cruciate Ligament Reconstruction Using a Reharvested Bone-Patella Tendon-Bone Graft. Accepted for publication, American Journal of Sports Medicine.

O’Shea JJ, Shelbourne KD. Repair of Locked Bucket Handle Meniscus Tears in Anterior Cruciate Ligament Deficient Knees. American Journal of Sports Medicine, Mar-Apr 2003; 31(2):216-20

Kittredge B, O’Shea J, Urch S, Ogle R, Sweeney T. Rapid bone regeneration induced by IGF-1 in Type I collagen gels. Orthopaedic Transactions 19(4), 1019, 1995-1996.

Urch S, Kittredge B, Liu G, Brooke B, O’Shea J, Ogle R, Sweeney T. Type I Collagen gels promote repair of segmental rat femoral defects through endochondral ossification. Orthopaedic Transactions 19(4), 938, 1995-96.

Rinaldo P, O’Shea JJ, Coates PM, Hale DE, Stanely CA, Tanaka K. Medium-chain acyl-CoA Dehydrogenase Deficiency. Diagnosis by stable isotope dilution measurement of urinary n-hexanoylglycine and 3-phenylpropionylglycine. New England Journal of Medicine. Nov. 17, 1988; 308-313.

Tanaka K, O’Shea JJ, Finocchiaro G, Ikeda Y, Aberhart DJ, Ghoshal PK. Substrate Steriochemistry of 2-methylbranched-chain-acyl-CoA Dehydrogenase: elimination of one hydrogen each from (pros-2s)-methyl and alphamethine of isobutyryl-CoA. Biochim Biophys Acta. Sept. 26, 1986; 873(2): 308-311.

Rinaldo P, O’Shea JJ, Welch R, Tanaka K. Diagnosis of medium-chain acyl-CoA dehydrogenase deficiency by stable isotope dilution analysis of urinary acylglycines: retrospective and prospective studies, and comparison of its accuracy to acylcarnitine identification by FAB mass spectrometry. Fatty Avid Oxid.: Clinical Biomechanical and Molecular Aspects. (Tanaka K, Coates PA editors) Alan Liss, NY. 1990; 411-418.

Rinaldo P, Welch R, Previs SF, Schmidtstomerville E, Gargus JJ, O’Shea JJ, Vinn A. Ethylmalonic-aciduria: Effect of oral medium chain tryglycerides, carnitine, and glycine on urinary excretion of organic acids, acylcarnitines, and acylglycines. Pediatr Res. Sept. 1991.