Signs and Symptoms
The most common symptoms of an LCL tear are pain, stiffness, swelling and tenderness along the outer side of the knee. Your knee may also feel loose, as though it will give way under stress. More severe tears can cause numbness or weakness in the foot; this occurs if the peroneal nerve (located near the LCL) is stretched at the time of injury or squeezed by subsequent swelling of the surrounding tissues.
UCSF Health medical specialists have reviewed this information. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.