Overview
ACL reconstruction is a surgical procedure that repairs a torn anterior cruciate ligament (ACL), one of the main ligaments that keep the knee stable. The ACL connects the femur (thigh bone) to the tibia (shin bone) and helps keep the knee stable when you move. Surgical reconstruction is often recommended when the ligament is completely torn, which often occurs in sports injuries when people suddenly stop or twist. The damaged ligament isn't just sewn back together; it's replaced with a graft. The graft can come from the patient's own tissue (an autograft, such as the hamstring or patellar tendon) or from a donor (an allograft). The goal is to stabilise the knee and have it work again.
Why It's Done
When knee instability makes it hard to do everyday things or play sports, ACL reconstruction is done. If you tear your ACL, your knee may "give way" over and over again, which can damage more cartilage and meniscus. Surgery is usually suggested for people who are active, athletes, or those who keep having problems even after physical therapy. The goal is to stabilise the joints, prevent them from worsening over time, and allow the person to safely return to activity.
What to Expect?
Before surgery, imaging tests like an MRI confirm the ACL tear and identify any other injuries. To strengthen muscles and reduce swelling, prehabilitation exercises may be recommended. Anaesthesia is given to the whole body or just the area being worked on. Most of the time, ACL reconstruction is done with small cuts and an arthroscope. The surgeon takes out the pieces of the torn ligament and makes tunnels in the femur and tibia bones. Then, the graft is placed and secured with screws or other tools. After the surgery, the cuts are sewn up, and a knee brace may be put on. Patients are monitored as they recover and are often sent home the same day. It is best to control pain, ice the area, and raise it. Physical therapy starts right away to help the knee regain its full range of motion and gradually strengthen it. Rehabilitation is organised and moves forward in steps.
Recovery & Outlook
To improve, you need to stick with a comprehensive rehabilitation program. You may be able to walk with help within a few days, but it usually takes 6 to 9 months to return to sports. Early on, swelling and stiffness are common, but therapy can help. Most patients regain stable, functional knees. When rehabilitation protocols are followed carefully, the long-term results are usually very good. This lowers the risk of injury and makes it safe to start exercising again.