Arthroscopic ACL & Ligament Reconstruction

Unlike many other ligaments (like the MCL), the ACL is located entirely inside the joint fluid (synovial fluid) of the knee. This fluid prevents the formation of a blood clot, which is the necessary first step in natural tissue healing. Therefore, suturing the two torn ends together usually fails, and a complete reconstruction with a new graft is required.

Both are highly successful, but the choice depends on age and activity level. Autografts (your own tissue) have lower re-tear rates in young, highly active athletes (under 25) because the tissue integrates faster and stronger. Allografts (donor tissue) require a smaller incision, result in less immediate post-operative pain, and are often preferred for older patients or those undergoing revision (a second) ACL surgery.

Recovery is a long, highly structured process. While patients are walking normally within a few weeks, the new graft undergoes a biological process called "ligamentization," where it is initially very weak before gaining strength. It typically takes 9 to 12 months of intense physical therapy before an athlete is cleared to return to high-demand, pivoting sports safely.

Protocols vary by surgeon. Some require a straight-leg hinged brace and crutches for the first 2 to 4 weeks, especially if a meniscus repair was done simultaneously. However, modern accelerated rehab protocols often focus on immediate weight-bearing and restoring range of motion as quickly as possible, minimizing the prolonged use of heavy bracing.