Đây không phải là một vấn đề phổ biến nhưng một mà cần phải được xem xét ở những bệnh nhân bị đau ở khu vực thuộc về nhượng chân (mặt sau của đầu gối). Popliteus là rotator nội bộ chính của xương chày. Nguồn gốc của nó, biên giới, trung gian phía sau của xương chày | 282 . Shahady severe injury. It may take up to 3 months before the patient can return to full involvement in strenuous physical activity. Return to full activity should be accompanied by preparticipation conditioning and stretching exercises. 10. Popliteus Tendonitis This is not a common problem but one that needs to be considered in patients with pain in the popliteal area the back of the knee . The popliteus is the primary internal rotator of the tibia. Its origin is the posterior medial border of the tibia. It inserts on the lateral femoral condyle anterior and inferior to the origin of the fibular collateral ligament. Popliteus tendonitis can be confused with lateral meniscus and lateral collateral ligament injury as well as gastrocnemius injury. The patients usually complain of posterolateral knee pain that extends into the popliteal fossae. The onset of symptoms is gradual and it increases with activity. Examination reveals tenderness in the popliteal fossae and the posterior lateral area of the knee. Resisted external rotation Figure while palpating the popliteus produces pain. This test is performed with patients lying on their back with the painful leg placed in 90 of hip flexion Figure . Resisted external rotation. 13. Lower Leg Problems 283 and 90 of knee flexion. The clinician stands on the lateral side of the knee with one hand supporting the knee and the other placed on the foot resisting external rotation. . Imaging An MRI may be needed to make a definitive diagnosis. . Treatment Excessive quadriceps fatigue strains the popliteus so a rehabilitation program emphasizing strengthening of the quadriceps muscle should be instituted. A 2-week course of NSAIDs should also be included in the treatment. Recalcitrant cases may require a local injection of a steroid. Maintaining good quadriceps strength is the key to preventing a recurrence. 11. Retrocalcaneal Bursitis The retrocalcaneal bursa is located behind the calcaneus and in front of
