Hip abductors are a major group of muscles found in the buttocks. It includes the gluteus maximus, gluteus medius, gluteus minimus, and tensor fascia lata muscles.
The tear or rupture of the hip abductor is commonly seen in runners and athletes involved in high-impact sports such as soccer or basketball. It can occur due to sudden bursts of activity or poor flexibility of the abductor muscle. Any traumatic or overuse injury or degenerative changes may also lead to a partial or complete tear of the gluteus muscle.
The symptoms include pain and tenderness over the lateral aspect of the hip, which may aggravate with activities such as running, climbing stairs, prolonged sitting or walking, and lying on the affected side of the hip. One of the main symptoms of abductor muscle tear is the Trendelenburg’s sign – dropping of the pelvis towards the unaffected side as you will be unable to bear weight on the affected limb.
The diagnosis of a hip abductor tear is based on your physical examination – palpation of the affected muscle, testing muscle power and assessing walking pattern or gait. Certain special tests such as a single-leg squat test or a positive Trendelenburg’s sign confirms the diagnosis of a hip abductor tear. Sometimes, MRI or ultrasound may be helpful to detect the pathological changes of the muscle.
Left untreated, a hip abductor tear may result in gait problems and disability.
The aim of treatment is to restore the normal function of the abductor muscle.