Abstract
24 femoral heads of patients with intracapsular fracture of the femoral neck were examined. These materials were classified 3 fracture types according to Minamisawa's classification, i.e., typical type, mixed type and crescent type. These specimens were examined by a soft x-ray, contact-microradiography, histological and osteo-morphometrical methods. Consequently, in the cases of typical type, it is was suggested that there was a possibility of bone remodeling to fracture healing when reserched in histological examination and histomorphmetry, because of an opened inferior retinacular artery, one of capital nutrient artries, was observed. On the other hand, in the cases of mixed and crescent type, an opened nutrient arteries were not observed in the capitatum. In addition, fracture healing in these 2 types was considered to be very little possibility, because of osteoporotic findings of cancellous bone and less amount of bone marrow in these capitatum.
