In patients with intrapelic protrusion, an implant with a deepened profile lateralizes the center of rotation of the hip and obiates the need for a medially placed bone graft ( Fig. 7-40, B ).

• 如果假体向骨盆内突出，采用外形加深的假体可使髋关节旋转中心外移，从而可避免内侧植骨（图7-40，B）。