Internal fixation with cancellous bone screws is effective for femoral neck fractures by lowering the incidence of femoral head necrosis

Aims: The present study is to evaluate the effect of internal fixation with cancellous bone screws in the treatment for femoral neck fractures. Methods: A total of 64 patients with femoral neck fractures hospitalized at our hospital from January 2014 to December 2014 were included in the present study. The 64 patients were randomly divided into Con group (internal fixation by thread needles; n = 32) and Mod group (internal fixation by cancellous bone screws; n = 32). Bone mineral density was determined before surgery. At 0, 1, 3, 6, 10 and 12 months after the surgery, computed tomography was performed on pelvis. In addition, surgery duration, intraoperative blood loss, fracture healing time and rate of femoral head necrosis were measured. Results: The fracture lines in Mod group became more blurred than Con group with time, together with the formation of callus. CT values in Mod group were significantly increased compared with Con group. Treatment with cancellous bone screws reduced the blood loss during surgery, as well as the time used for surgery and fracture healing. Cancellous bone screws caused lower incidence of femoral head necrosis than thread needles. Conclusions: Internal fixation with cancellous bone screws reduces the blood loss during surgery, as well as the time used for surgery and fracture healing. In addition, it is effective in the treatment for femoral neck fractures by lowering the incidence of femoral head necrosis.