Fig. 1From: Efficacy of teriparatide in the treatment of nontraumatic osteonecrosis of the femoral head: a retrospective comparative study with alendronateThe progression of collapse of the femoral head of NOFH. The progression of collapse (D1-D2) before administration (left) and at every follow-up (right) using anteroposterior radiographs. The baseline is the top of the greater trochanter of the femurBack to article page