Fig. 2From: Biomechanical research of medial femoral circumflex vascularized bone-grafting in the treatment of early-to-mid osteonecrosis of the femoral head: a finite element analysisA The finite element model of normal group; B the finite element model of osteonecrosis group; C the finite element model of postoperative group; D the finite element model of bone flap in postoperative groupBack to article page