Trillat surgery

Trillat surgery is used for surgical treatment of lateral collateral ligament injury. The lateral collateral ligament is not as important for the stability of the knee joint as the medial collateral ligament, and its damage is also rare. The reason is that the lateral collateral ligament is loose at the flexion position, and it is not injured by the rotational stress. The biceps tendon, the lateral joint capsule, and the cruciate ligament are strengthened, and the contralateral limb is protected from the internal recession. The joint can withstand varus stress only when the knee is slightly flexed, which can damage the lateral structure, including the tendon bundle, lateral collateral ligament, lateral joint capsule, diaphragmatic tendon, cruciate ligament, biceps femoris, lateral head of gastrocnemius, and total iliac crest. Nerves, etc. The lateral structural damage of the knee should be treated in time with the correct method, otherwise it will lead to unstable rotation of the anterior aspect of the knee. For those with severe joint effects, or those with lateral meniscus and anterior cruciate ligament injury, ligament reconstruction is required. However, chronic knee lateral ligament relaxation is still a difficult problem in treatment, and the long-term effect is not satisfactory. Sometimes the stability of the lateral structure can be enhanced by using a part of the lateral head of the gastrocnemius or a fascia. Treatment of diseases: lateral knee ligament injury Indication Trillat surgery is suitable for anterior lateral rotation instability caused by lateral collateral ligament injury. Surgical procedure Incision A straight incision on the lateral side of the knee, from the upper femoral condyle down to slightly below the humeral head. 2. Exposing the lateral collateral ligament and biceps tendon The skin and subcutaneous tissue were dissected and slightly separated to the sides to reveal the biceps tendon, lateral collateral ligament and humeral head. 3. Tightening the lateral joint capsule The attachment point of the humeral head is excised, the lateral collateral ligament and the biceps tendon are freed, and the upper joint capsule is tightened and overlapped. 4. Knee lateral collateral ligament stop shift At the 30° position of the knee, the ligament of the humeral head with the chiseled part was turned down, the lateral collateral ligament of the knee was tightened, a bone groove was made on the lateral side of the humerus, and the small head of the humerus was embedded and fixed with screws.