Surgical stabilization is the treatment of choice for both stable and unstable intertrochanteric fractures. Unfortunately, the elderly patient has poor quality of bone. Because of osteoporotic bone, management of unstable comminuted fracture is very difficult in reduction and fixation of fracture. Now the sliding compression hip screw is the device used for hip screws have been used widely. these device have most commonly, and also intramedullary hip screws have been used widely. These device have many advantages in the treatment of interrochanteric fracture. But fixation failure occur not uncommonly in osteoporotic comminuted unstable fracture. For the pupose of stable fixation in osteoporotic femur neck and head, we used the 95degree angled blade plate(=condylar plate). We experienced that the blade portion of condylar plate offer a good fixation stability. clinical results were good in 31 cases of intertrochanteric fracture treated with condylar plate. There was no cutting out of head, excessive shortening and excessive varus deformity. Most of all cases, except one, were united within average 4months. We consider that using the condylar plate for osteoporotic unstable intertrochanteric fracture would be another good modality if surgeons have a surgical skill.