What Are the Symptoms of a Lateral Collateral Injury?
Injury of the lateral collateral ligament is relatively rare, and it is mostly caused by violence acting on the medial leg and adduction. When the knee is extended, the lateral articular capsule of the knee joint and the biceps femoris tendon are in a state of tension. Together with the anterior cruciate ligament and the posterior cruciate ligament, it protects the lateral collateral ligament of the knee. Therefore, the lateral collateral ligament is not easily damaged.
Basic Information
- English name
- injury of lateral collateral ligament of knee joint
- Visiting department
- orthopedics
- Common causes
- Violence on the inside of the calf
- Common symptoms
- Localized knee pain, swelling near the fibula head, subcutaneous congestion, local tenderness
Causes of lateral collateral ligament injury
- Mostly caused by violence on the inner side of the calf, causing it to recoil.
Clinical manifestations of lateral collateral ligament injury
- Rupture of the lateral collateral ligament mostly occurs at the stop, most of which are associated with avulsion of the small fibula head. Therefore, the main clinical symptoms are localized pain in the lateral side of the knee joint, swelling near the small head of the fibula, subcutaneous congestion, local tenderness, and knee mobility disorders Sometimes combined with common peroneal nerve injury.
Examination of lateral collateral ligament injury
- X-ray of the knee shows avulsion of the small fibula head. X-ray orthotopic radiographs of the knees in the adduction position of the lower leg, and the lateral space of the knee are significantly widened, which is of great value in judging the extent of lateral collateral ligament injury.
Diagnosis of lateral collateral ligament injury
- Based on a history of intense varus knee trauma, pain, swelling, and tenderness on the lateral knee are most pronounced near the small fibula head. The knee varus stress test (+) can confirm the diagnosis. X-ray examination can exclude fractures and determine the extent of lateral collateral ligament injury.
Complications of lateral collateral ligament injury
- May be combined with fibula head fracture, common peroneal nerve injury.
Treatment of lateral collateral ligament injury
- Non-surgical treatment
- It is suitable for those with mild injury and simple lateral collateral ligament injury. Photograph of knee adduction stress. The joint gap is widened by 0.4cm and can be compressed and bandaged with elastic bandages. The joint gap is widened by 0.5 1.2cm. The knee joint is compressed and bandaged. The knees are flexed at 20 ° 30 °. The long-legged cast was fixed. After 6 weeks, the cast was removed and knee exercises were started. During plaster fixation, quadriceps contraction training should be strengthened.
- 2. Surgical treatment
- The lateral collateral ligament of the knee is completely broken. In the past, it was considered unnecessary to repair it. However, recent observations have shown that those who have not repaired the sequelae are obvious and often cause instability of the anterolateral lateral rotation of the knee. When combined with posterior cruciate ligament injury, posterolateral rotation instability occurs, and the tibial epicondyle rotates backward and subluxes. Therefore, in recent years, once severe lateral collateral ligament rupture is diagnosed, surgical repair is decided.