Schanz骨切り術後の高度大腿骨近位部変形を有する末期変形性股関節症に対し, 実物大フルカラー3D塩模型を用いて術前シミュレーション評価を行いTHAを実施した1例

抄録

 We created a full-scale and full-colour 3-dimensional salt model with computed tomography based data for a 69-year-old woman, who underwent Schanz osteotomy of her proximal femurs in her youth. We composed a preoperative simulation for evaluation and as a result, we chose the anterolateral supine approach. We transplanted the bulk femoral bone autograft to the acetabulum. We used the smallest size of Wagner type stem, Stellaris^® (Mathys), but the neck offset was still too long. We also performed advancement of the greater trochanter consistent with the Paavilainen method.

 Full-scale and full-colour 3-dimensional salt modelling was useful in the preoperative simulation and image training for the surgeon, but it was difficult to predict the soft tissue balances and to evaluate the intraoperative bone qualities.