Objective To compare the therapeutic effects of cannulated compression screws(CCS)and femoral neck system(FNS)in the fixation of femoral neck fractures.Methods Forty-two patients with femoral neck fractures were divided into two groups based on the internal fixation method:the FNS group(treated with FNS fixation,15 cases)and the CCS group(treated with CCS fixation,27 cases).The incision length,intraoperative blood loss,frequency of intrao-perative fluoroscopy,operation time,postoperative hospital stay time,occurrence of complications,weight-bearing time,fracture healing time and gait condition were compared between the two groups.Results All patients were followed up for 12～14 months.The incision length was shorter in the CCS group than the FNS group(P<0.05).The FNS group had fewer intraoperative fluoroscopy frequency and shorter operation time,compared with the CCS group(P<0.05).There were no statistical differences in intraoperative blood loss and postoperative hospital stay between the two groups(P>0.05).Both groups had no complications such as incision infection or nonunion.In the CCS group,two cases experienced loosening and screw displacement after about 3 months,but it did not affect fracture healing after re-ducing activities.The partial weight-bearing time and fracture healing time in the FNS group were both shorter than the CCS group(P<0.05).At the last follow-up,both groups of patients could walk with partial weight-bearing.Conclu-sions Compared to CCS fixation,FNS fixation in the treatment of femoral neck fractures requires fewer intraoperative fluoroscopy procedures,shorter operation time,and provides stable and reliable fixation.It is more favorable for func-tional exercise of the affected limb following the principle of early activity,late weight-bearing and promotes fracture healing.
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