If you’ve torn your ACL, one of the biggest factors in how well you recover actually happens before surgery.
Pre-operative physical therapy, commonly called “prehab”, sets the stage for everything that follows. Patients who prepare their knee before surgery consistently demonstrate better strength, improved function, and smoother recoveries afterward.
Restore Full Knee Extension First
The most important goal before surgery is regaining full knee extension. In fact, the strongest predictor of your range of motion after surgery is your range of motion going into surgery. If your knee cannot fully straighten beforehand, it becomes significantly more difficult to restore afterward.
This can lead to altered walking mechanics, persistent stiffness, and slower overall progress. Prehab focuses on reducing swelling, restoring motion, and retraining the quadriceps to control the knee in a fully straight position, which is a critical foundation for recovery.
Protect Your Quadriceps Strength
After an ACL injury, the quadriceps often become inhibited, meaning the muscle doesn’t activate effectively. This leads to rapid atrophy and long-term weakness if not addressed early.
Stronger quadriceps prior to surgery are consistently associated with better function and strength after surgery, and quad strength is one of the biggest predictors of post-operative success. Prehab helps restore activation and build strength so you are not starting from a deficit when recovery begins.
Recovery Starts Before Surgery
Pre-operative rehab doesn’t just prepare your knee, it improves your entire recovery timeline. Even a few weeks of structured prehab has been shown to improve strength, movement quality, and return-to-sport outcomes.
It also allows you to become familiar with key components of post-op rehab, including quad activation exercises and neuromuscular electrical stimulation (NMES). When you’ve already practiced these, you’re able to use them more effectively right after surgery.
The Bottom Line
Prehab is one of the most impactful things you can do after an ACL injury. Going into surgery with full extension, strong quadriceps, and a clear understanding of the rehab process puts you in the best position to recover quickly and return to the activities you care about.
If you’re planning ACL surgery, don’t wait, start preparing now!
Ready to Get Started?
Our clinic specializes in helping active individuals and athletes prepare for ACL surgery with structured, evidence-based prehabilitation programs. If you want a faster, more efficient recovery, it starts here.
Schedule your evaluation today and take control of your recovery before surgery even begins.
References
Grindem H, et al. “Preoperative quadriceps strength is a significant predictor of knee function two years after ACL reconstruction.” Br J Sports Med. 2015.
Eitzen I, et al. “A progressive 5-week exercise therapy program leads to significant improvement in knee function early after ACL injury.” J Orthop Sports Phys Ther. 2010.
Shaarani SR, et al. “Effect of prehabilitation on the outcome of anterior cruciate ligament reconstruction.” Am J Sports Med. 2013