Kevin J. Choo, MD

Kevin Choo, MD
  • College: Stanford University, Department of Biological Sciences, Palo Alto, CA,
  • Medical School: University of Chicago, Pritzker School of Medicine, Chicago, IL
  • Residency: Orthopedic Surgery, University of California San Francisco (UCSF), San Francisco, CA
  • Fellowship: Adult Reconstruction and Joint Replacement, Rothman Institute, Thomas Jefferson University, Philadelphia, PA
Kevin J. Choo, MD, is an orthopedic surgeon who specializes in primary hip and knee replacement for the treatment of degenerative osteoarthritis, inflammatory arthritis, avascular necrosis, hip dysplasia, and post-traumatic arthrosis.  He is fellowship-trained in direct anterior hip replacement, use of computer- and robotic-assisted technology, and partial knee replacement. His clinical interest also includes revision hip and knee surgery for the treatment of failed joint replacement due to infection, loosening, or recurrent dislocation.

Dr. Choo earned his medical degree from the University of Chicago and completed his internship and residency at UCSF (University of California- San Francisco). He received  fellowship training in Adult Reconstruction and Joint Replacement at the Rothman Institute in Philadelphia, PA.  Dr. Choo has presented and published on such topics as the biology of bone healing, the reduction of opioid use after orthopedic surgery, periprosthetic joint infection management, and partial joint replacement. Dr. Choo was named an Emerging Leader by the American Orthopaedic Association (AOA). He is a reviewer for the Journal of the American Association of Orthopaedic Surgeons (JAAOS) and the Journal of Orthopaedic Trauma (JOT)

Please click here to schedule an appointment online or call (203) 869-1145


I am two weeks into a full hip replacement. Dr. Choo could not have been better. He explained all procedures clearly and thoroughly, used a front entry incision, and a spinal and a sedative instead of full anesthesia so I recovered quickly after the surgery. Dr. Choo invited questions on my part and listened and answered all of them in terms I could understand. After the surgery he checked on me three times in the hospital and called me at home the day after to check on me. Everybody associated with ONS was helpful and caring. All appointments were made quickly and were not rushed. I am not medically knowledgeable – but I did due diligence looking into the details of full hip replacement. Dr. Choo is state-of-the-art in his work, and a kind and caring professional. I can recommend him with the highest possible rating.  (5 Star Review on Healthgrades from M.G.)
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Understanding Knee Pain

Joint Replacement Symposium


American Orthopaedic Association (AOA), Emerging Leader  – UCSF

American Orthopaedic Association (AOA), C.McCollister Evarts Leadership  – UCSF

Health Volunteers Overseas (HVO) Traveling Fellowship – UCSF (Managua, Nicaragua)

Scholarship and Discovery Research Grant – University of Chicago

Howard Hughes Medical Institute (HHMI) Research Grant – Stanford University


Yazdi, H, Choo KJ, Restrepo C, Hammad M, Sherman M, Parvizi J. Short Term Results of Triathlon Cementless versus Cemented Primary Total Knee Arthroplasty. The Knee. 2020. (accepted, pending publication)

Choo KJ, Austin M, Parvizi J.  Irrigation and debridement, modular exchange and implant retention for acute periprosthetic infection after total knee arthroplasty.  Journal of Bone and Joint Surgery (JBJS) Essent Surg Tech. 2019. 

Choo KJ, Grace TR, Khanna K, Barry J, Hansen EN. A Goal-directed Quality Improvement Initiative to Reduce Opioid Prescriptions After Orthopaedic Procedures. JAAOS Global Research & Reviews. 2019 Sept 17;3(9)

Grace TR, Choo KJ, Patterson J, Khanna K, Feeley, BT, Zhang AL. A Review of Inpatient Opioid Consumption and Discharge Prescription Patterns after Orthopaedic Procedures.  Journal of the American Academy of Orthopaedic Surgeons. 2019.

Grace TR, Khanna K, Choo KJ, Croci R, Feeley BT, Ma CB, Zhang AL.   The Influence of Preoperative Opioid Use on Inpatient Opioid Requirements and Discharge Medication Prescriptions After Primary Shoulder Arthroplasty.  J Shoulder Elbow Surg. 2018; Apr 24. pii S1058-2746(18)30173-

Wong K, Burns R, Mohan R, Yi PH, Choo KJ. Variability in Conflict of Interest Disclosures by Physicians Presenting Trauma  Research. World J Orthop. 2017; Apr18;8(4):329-335

Choo KJ, Yi PH, Burns R, Mohan R, Wong K. Variable Reporting by Authors Presenting Arthroplasty Research at Multiple  Annual Conferences. J Arthroplasty. 2017; 32:315-219

Wang Z, Tran M, Bhatia N, Hsing A, Chen C, LaRussa M, Fattakhov E, Rshidi V, Hang KY, Choo KJ, Nie X, Mathy J, Longaker MT, Dauskardt R, Helms J, Yang GP. DEL1 Knockout Mice Developed More Severe Osteoarthritis Associated with Increased Susceptibility of Chondrocytes to Apoptosis. PLoS One.  2016 Aug 9;11(8)

Horst PK, Choo K, Bharucha N, Vail TP.  Graduates of Orthopaedic Residency Training are Increasingly Subspecialized: A Review of the American Board of Orthopaedic Surgery Part II Database. J Bone Joint Surg Am. 2015 May 20;97(10): 869-7

Morshed S, Choo KJ, Kandemir U, Kaiser SP. Internal Fixation of Posterior Pelvic Ring Injuries Using Iliosacral Screws in the Dysmorphic Upper Sacrum. JBJS Essent Surg Tech. 2015 Feb 11; 5 (1): e3

Choo KJ, Arora VM, Barach P, Johnson JK, Farnan JM. How Do Supervising Physicians Decide to Entrust Residents with Unsupervised Tasks? A Qualitative Analysis. J Hosp Med. 2014 Mar;9(3):169-75

Choo KJ, Morshed S. Postoperative Complications After Repair of Tibial Plateau Fractures. J Knee Surg. 2014 Feb;27(1):11-9

Guzman R, De Los Angeles A, Choo K, Gaeta X, Cote J, Cheshier S, Steinberg GK. Intra-carotid Delivery of CD49d FACS Sorted Neural Stem Cells Enhances Angiogenesis and Improves Functional Outcome After Stroke. Stroke 2008 (39);527-72


Choo KJ, Lonner JH. (2019) Treating Patellofemoral Osteoarthritis with Unicompartmental and Bicompartmental Knee Arthroplasty.  Unicompartmental Knee Arthroplasty: Indications, Surgical Techniques and Complications. New York, NY: Springer Publishing. [textbook chapter]


Choo KJ, Malkani K, Cooper AM, Yazdi H, Parvizi J. Dual-Mobility Bearings and Constrained Liners in Revision Total Hip Arthroscopy: A Comparison of Outcomes. American Academy of Orthopaedic Surgeons (AAOS) National Meeting (2020)

Grace T, Khanna K, Choo K, Zhang A. Does Tailoring Discharge Opioid Regimens to Inpatient Use After Orthopaedic Procedures Affect Refill Rates. Western Orthopaedic Association Annual Meeting, Snowmass, CO. 2018 August 2.

Choo KJ, Sing D, Hansen E. Psychological Distress after Diagnosis and Treatment for Prosthetic Joint Infection.  UCSF Abbott Society Scientific Program (2018)

Choo KJ. Conflict of Interest in Orthopaedic Surgery.  UCSF Dept. Orthopaedic Surgery Grand Rounds (2017)

Choo KJ, Morshed S, Wustrack RL, O’Donnell RJ. Femoral Pathologic Fracture in Morbidly Obese Patient Managed with External Fixation and Compressive Osseointegration.  Advances in Orthopaedic Osseointegration Conference (2015)

Choo KJ, Arora VM, Barach P, Julie JK, Farnan JM. When Do Supervising Physicians Decide to Entrust Residents With Unsupervised Tasks? A Qualitative Study. Society of General Internal Medicine- National Conference (2012)

Choo KJ, Farnan JM, Barach P, Arora VM. Factors that Determine Entrustment, Supervision, and Autonomy of Housestaff During Inpatient Medicine Rotations: A Qualitative Study. Society of General Internal Medicine- Midwest Conference (2011)

Choo KJ, Wang Z, Longaker MT, Yang GP. Histomorphometric Analysis of Tibial Bone Fracture in Del-1 Knockout Mice. American College of Surgeons Clinical Congress (2009)


Choo, KJ, Rajaravivarma, R, Hozack W. Effect of Femoral Head Material on Head-to-Trunnion Impaction Motion and Taper Stability.  Orthopaedic Research Society (ORS) Annual Meeting (2020)

Choo KJ, Farnan JM, Barach P, Arora VM. Factors that Determine Entrustment, Supervision, and Autonomy of Housestaff During Inpatient Medicine Rotations: A Qualitative Study. Midwestern Hospitalist Medicine Conference (2011)

Choo KJ, Taxy J, Blair EA. Salivary Gland Mucoepidermoid Carcinoma: An Institutional Review. American College of Surgeons Clinical Congress (2010).