Abstract
99mTc-MDP uptake of the femoral head in traumatic hip dislocation of 7 cases was examined by serial bone scintigraphy after reduction. The cases of dislocation were type I (6 cases) and type II (1 case) by the classification of Thompson and Epstein.Five cases with normal healing showed the increased uptake of 99mTc-MDP in the whole femoral head within a few months of the accident. Then, the degree of uptake decreased gradually and returned to the normal level.The roentgenographical changes in the femoral head were observed in 2 cases within 2 years of the accident. One was the mottled sclerotic change and the other was late segmental collapse. These cases showed severe band-like uptake in the femoral neck and circular uptake around the femoral head by early scintigraphy. The findings of those uptake patterns were recognized over 2 years and differed from that of normal healing.It is thought that bone scintigraphy is a useful method for the observation of pathological changes in the femoral head of traumatic hip dislocation.
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