The fibular collateral ligament (FCL), also called the lateral collateral ligament (LCL), runs along the outer side of the knee and works with the posterolateral corner structures to resist varus and rotational forces. FCL injuries are less common than MCL tears but can be serious, particularly when combined with posterolateral corner or multi-ligament damage.
Dr. Joe Cooper, a board-certified and fellowship-trained orthopedic surgeon in Beverly Hills and Brentwood, specializes in diagnosing and treating all forms of lateral and posterolateral knee instability.
Causes
FCL injuries typically result from a direct blow to the inner side of the knee (forcing it outward), hyperextension, or high-energy trauma. They are commonly seen in football, soccer, and motor vehicle accidents.
Symptoms
- Pain and tenderness along the outer side of the knee
- Swelling over the lateral joint line
- Lateral instability with activity
- Possible numbness or tingling if the peroneal nerve is involved
Treatment
Grade I and II injuries typically respond to bracing and physical therapy. Grade III tears and posterolateral corner injuries often require surgical reconstruction to restore stability. Dr. Cooper will comprehensively evaluate your knee and recommend the most appropriate treatment.
Contact Our Office
Contact Dr. Cooper's Beverly Hills or Brentwood office to schedule your evaluation.
