Why Can’t I Reach 90 Degree Flexion After My ACL Reconstruction Surgery?

ACL reconstruction surgery is a common procedure for athletes and active individuals who have suffered a tear or rupture in the anterior cruciate ligament (ACL), one of the key ligaments in the knee. Post-surgery, achieving full range of motion, including a 90-degree flexion, is a crucial part of the recovery process. However, some patients may find it challenging to reach this milestone, even a month after the surgery. This can be due to several reasons, including the type of graft used, the rehabilitation process, and individual healing rates.

Understanding ACL Reconstruction Surgery

ACL reconstruction surgery involves replacing the torn ligament with a graft, which can be taken from the patient’s own body (autograft) or from a donor (allograft). The surgery aims to restore stability and function to the knee, allowing the patient to return to their regular activities. However, the recovery process can be lengthy and requires a dedicated rehabilitation program.

Factors Affecting Flexion After ACL Reconstruction

Graft Choice

The type of graft used can influence the recovery process. Autografts, particularly those taken from the patellar tendon, may result in more post-operative pain and stiffness, potentially limiting early flexion. On the other hand, allografts may be associated with a slower healing process, which could delay the achievement of full range of motion.

Rehabilitation Process

Rehabilitation after ACL reconstruction is crucial for regaining knee function. This typically involves a combination of physical therapy exercises and possibly the use of a continuous passive motion (CPM) machine. If the rehabilitation program is not followed correctly, or if the exercises are not performed properly, it may hinder the recovery of knee flexion.

Individual Healing Rates

Each individual heals at a different rate, and this can affect the speed at which full flexion is achieved. Factors such as age, overall health, and the presence of other knee injuries can influence healing times.

What to Do If You Can’t Reach 90 Degree Flexion

If you’re struggling to achieve 90-degree flexion a month after your ACL reconstruction, it’s important not to panic. Continue with your rehabilitation exercises and consider seeking additional physical therapy. However, if you’re experiencing significant pain, swelling, or other concerning symptoms, it’s crucial to consult with your surgeon or a healthcare professional. They can assess your situation and provide appropriate advice or treatment options.

In conclusion, while reaching 90-degree flexion after ACL reconstruction can be challenging, it’s a crucial part of the recovery process. Understanding the factors that can affect this milestone can help patients better manage their rehabilitation and achieve the best possible outcome.