[Importance of numeric scintigraphy of the hips during primary aseptic osteonecrosis of the femoral head in adults].

The authors have studied 58 cases of primitive aseptic osteonecrosis of the hips, 35 cases of coxarthrosis, 12 algodystrophies and 11 cases of coxitis, using numerical scintigraphy with Technetium 99m pyrophosphate. They have studied the ration of uptake by the femoral head over the uptake by the soft issues. The values obtained are compared to those observed in the study of normal hips. The result is that the technique offers the possibility of establishing, in a more differential manner, a diagnosis of lesion of the hips at an infraradiologic stage.