[Differential x-ray diagnosis of tendinosis in the region of the greater trochanter of the femur and coxarthrosis and tubercular trochanteritis].

The paper is concerned with the findings of examination of 1132 patients with complaints of pains in the hip joint. The cause of the pain symptoms was found on clinical and x-ray examination. In 28.8% the pain syndrome in the hip joint and disorder of its locomotor function were determined by tendinosis in the greater trochanter. Three stages in the development of a process were singled on the basis of morphological investigations: (I) the substitution of a part of the tendon for a fibrillar cartilage (roentgenonegative); (II) calcification of a fibrillar cartilage; (III) the development of a new spongy bone at the site of a calcified cartilage. Stages II and III have a clear x-ray image and are easily diagnosed. These signs differentiate tendinosis from coxarthrosis and tuberculous trochanteritis.