Osteochondral Allograft Transplantation in Professional Athletes: Rehabilitation and Return to Play.
Snehal Patel, Arya Amirhekmat, Ryan Le and 2 others
PMID 34123544WHAT IT FOUND
A proposed staged knee protocol after osteochondral allograft in athletes emphasizes early extension, partial weight bearing, quadriceps re-education, core work, and progress only when criteria are met.
Cited return rates range 75% to 88%.
Key findings
01The article describes a staged rehabilitation protocol, from weeks 0-2 to 20+ weeks, with phase-specific precautions, range of motion, strength work, and criteria for advancing.
02In Phase I, the authors describe 20% foot-flat weight bearing for 1-2 weeks, followed by progression to full weight bearing, when graft fixation is robust.
03The authors report a median 14 months and 80% return to the same level in their basketball series; other cited studies report 75-88% return.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
This is a proposed protocol and narrative review, not a controlled study, so it does not prove that the sequence improves healing, return to sport, or pain. Weight bearing and range of motion progressions are explicitly variable and depend on surgeon protocol, graft fixation, lesion location, and the athlete's symptoms. The early 20% foot-flat weight bearing is described as the authors' experience, and blood flow restriction is noted as not heavily researched in cartilage transplant patients. Return-to-play rates are drawn from the authors' basketball series and other published studies, so they cannot be separated from surgeon technique, athlete factors, or concurrent care. The supplied text does not give methods or participant counts for the authors' series, so the 14-month and 80% figures cannot be appraised from this paper alone.
Declared interests
No funding or conflict-of-interest declaration is included in the supplied text.
The easy way to misread this
Do not read the 75% to 88% return rates as proof that this protocol causes return to sport. They come from varied published series and the authors' basketball series, and the article does not test the protocol against a control group.