John O'Shea, MD

Areas of Focus: 
Disorders of the Knee
ACL & Ligament Reconstruction
Knee Replacement Surgery
Kneecap Realignment
Knee Arthroscopy

About Me

The focus of my practice is disorders of the knee joint. This specialization and 25+ years of experience enable me to use evidence-based strategies to help my patients achieve faster and better outcomes.

- 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.

My Work

Office Locations: 
Hospitals Served: 
Providence Portland Medical Center
Areas of Focus: 
Disorders of the Knee
ACL & Ligament Reconstruction
Knee Replacement Surgery
Kneecap Realignment
Knee Arthroscopy

Education & Honors

Board Certification: 
Board Certified
Education & Training: 
  • 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
  • Chairperson, Department of Orthopaedics, Providence Portland Medical Center
  • Team Doctor, Central Catholic High School Football Team, Portland, OR, 2003 - Present
  • 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.
Other Activities: 
  • Member, American Academy of Orthopaedic Surgeons
  • Member, Oregon Medical Association
  • Member, Medical Society of Metropolitan Portland
  • Member, Oregon Association of Orthopaedic Surgeons