当園におけるペルテス病保存治療

骨頭変形に伴う臼蓋側変化について

抄録

It is considered that the prognosis extend over a long time of Perthes disease is determined by the condition of the acetabulum. The acetabular change accompanied with the femoral head deformity and the factors concerning with it are reported in this paper. 34 patients who were treated conservatively in our hospital after 1975 and healed primarily are examined. Catterall's classification is applied. Roentgenograms at the time of pre-treatment and primary healing are estimated by ARA, AHQ, ATD, coxa magna rate (CMR) and Mose method. Age at onset, the time at the first treatment and head at risk (metaphyseal cyst, lateral ossification and lateralization) are also examined. It is revealed that acetabular roof angle tends to be steep with deformity of the femoral head. It is also important that delaying of treatment, widerange necrosis, lateralization and lateral ossification are considered to be factors of deformity of the femoral head.