Postoperative rehabilitation and outcomes following arthroscopic isolated meniscus repairs: A systematic review.

When someone tears a meniscus in the knee and it gets surgically repaired, how they should be rehabilitated afterward, how much weight they can bear, when motion should progress, when they can return to sport, has never been settled by strong evidence. This review pulled together 18 studies on rehabilitation after arthroscopic meniscus repair to see what the existing literature actually supports. The broad pattern that emerged was that most studies suggested returning to sport somewhere between three and six months after surgery, and that starting range of motion exercises early and allowing immediate weight-bearing did not appear to change patient-reported outcomes or failure rates for one specific tear pattern, vertical tears.

What makes this interesting is how thin the underlying evidence actually is. Only one study was a randomized controlled trial, most were retrospective, and rehabilitation protocols were often poorly described, so the authors could not confidently build an evidence-based rehabilitation program from what currently exists.

If you've had a torn meniscus repaired with surgery, you've probably wondered how careful you need to be afterward, how soon you can put weight on your knee, and when you might get back to sport. This review looked at 18 existing studies to see what guidance already exists.

Most of those studies suggested that people typically return to sport somewhere between three and six months after surgery, though this varied. For one type of tear, called a vertical tear, starting knee motion early and bearing weight right away didn't seem to make outcomes worse or increase the chance the repair would fail, based on what these studies reported. The important caveat is that this evidence is not very strong.

Almost all of the studies were retrospective, meaning they looked backward at what already happened rather than testing rehabilitation approaches head-to-head, and only one was a proper randomized trial. Many studies also didn't describe their rehabilitation programs clearly.

So while the general timeline and early motion pattern look reasonably consistent, the review's authors themselves said there isn't enough solid evidence yet to confidently build a single well-supported rehabilitation protocol.

This is a summary of research, not medical advice. Talk to your own healthcare provider about anything affecting your care.

This systematic review synthesized 18 studies addressing rehabilitation after arthroscopic isolated meniscus repair, scoring overall methodological quality using the Modified Coleman Methodology Score. The average score was moderate, 59.5 plus or minus 11.7, with a range of 42 to 90, and the subscore specifically for postoperative rehabilitation reporting was low, 4.7 plus or minus 1.18, indicating rehabilitation protocols were generally poorly detailed across studies.

Only one study (5.6 percent) was a prospective randomized controlled trial, while 14 (78 percent) were retrospective, which limits causal inference about rehabilitation variables and outcomes. Fourteen studies (78 percent) suggested return to sport occurring between three and six months postoperatively, though this reflects aggregated recommendations rather than a pooled statistical estimate. For vertical meniscus tear repairs specifically, early range of motion progression and immediate weight-bearing showed no apparent influence on patient-reported outcomes or failure rates across the included studies.

Given the predominance of retrospective designs, inconsistent and often vague rehabilitation reporting, and the near absence of controlled comparisons, the authors were unable to derive a truly evidence-based rehabilitation protocol, instead offering a synthesis-based framework that should be interpreted as provisional rather than validated.