Physeal Involvement in Perthes' Disease.

概要

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Radiological findings of the physeal involvement reported by Keret were studied in 52 unilateral Perthes' disease. All cases were treated conservatively and twenty and half years was a mean age at the time of review. Forty-three of 52 had one or more of 5 findings. Although the curvature of the physis was closely related with lateral protrusion of the capital nucleus and medial bowing of the femoral neck, premature physeal closure seemed to make the shape of physis flattened. Physeal involvement also resulted in elevation of the tip of the greater trochanter. A child has the abundant growth cartiage in the proximal femur. Overactivity due to hyperemia of the normal perichondral ring and the cartilage in the trochanteric growth plate, and pathological proliferation of the cartilage around the secondary ossification center and physis produce deformed haed characteristic of perthes' disease. Especially premaure closure of the physis seems to play a important role in this process.
西日本整形・災害外科学会の論文