ACL Tear? Things to Consider
Patients who suspect they have an ACL tear should seek a professional assessment by their physiotherapist or sports doctor. An ACL tear may be misdiagnosed immediately after the injury because of associated pain and swelling. There may also be muscle spasm that contributes to making the knee challenging to examine. Therefore, it may not be possible to conclusively determine the presence of an ACL tear soon after the injury. If an ACL tear is suspected, you will return for a follow-up evaluation with your orthopaedic surgeon.
How Does Your Physiotherapist Make the Diagnosis of an ACL Tear?
The presence of a suspected ACL tear occurs whenever a patient has an injury to their knee. In the clinic, knee instability assessment occurs via specific manoeuvers performed by your physiotherapist or doctor. These manoeuvers test the function of the ligament to determine if an ACL tear is present. The most commonly used tests to determine the presence of an ACL tear include the Lachman Test and the Pivot Shift Test.
What are Other Tests Recommended to Diagnose an ACL Tear?
A complete examination of the knee is also necessary to determine if other injuries may have occurred that could be causing your symptoms.
Your physiotherapist or doctor will also evaluate X-rays of the knee to assess for any possible fractures, and an MRI may evaluate ligament or cartilage damage. However, MRI studies may not be needed to diagnose an ACL tear. The physical examination and history are just as good as an MRI in diagnosing an ACL tear. Many patients are concerned when their doctor or physiotherapist does not order an MRI. While the MRI may be necessary in some cases, it is not required to diagnose most ACL tears if there are laxity and a predisposing mechanism of injury.
What to do if you have a Ruptured ACL?
We recommend professional guidance for an ACL tear. Successful rehabilitation options vary depending on your age, activity level and extent of the injury.