股骨颈动力交叉钉系统与空心钉内固定治疗股骨颈骨折的效果比较OA

Objective To investigate the clinical efficacy of femoral neck system(FNS)internal fixation versus cannulated screw internal fixation in the treatment of femoral neck fractures.Methods A total of 86 patients with femoral neck fractures who were hospitalized from June 2020 to June 2023 were enrolled as subjects and were randomly divided into observation group and control group,with 43 patients in each group.The patients in the control group underwent cannulated screw internal fixation,while those in the observation group received FNS internal fixation,and the two groups were compared in terms of surgical met-rics,clinical outcome,and complications.Results Compared with the control group,the observation group had a significantly higher intraoperative blood loss(t=17.055,P＜0.05),a significantly lower number of fluoroscopy sessions,and significantly shor-ter time of operation,length of hospital stay,and time for ambulation(t=3.108-15.788,P＜0.05).Compared with the control group,the observation group had significantly better clinical outcome and Harris score at 3 months after surgery(Z=8.427,t=3.123,P＜0.05),significantly shorter weight-bearing time and time to fracture healing,and significantly less femoral neck shorte-ning(t=3.438-15.959,P＜0.05).At 3 months after surgery,compared with the control group,the observation group had a sig-nificantly lower level of cross-linked C-telopeptide of type Ⅰ collagen and a significantly higher level of osteocalcin(t=9.731,2.707,P＜0.05).In addition,the observation group had a significantly lower incidence rate of complications than the control group(x2=8.795,P＜0.05).Conclusion FNS internal fixation has a better clinical efficacy in the treatment of femoral neck frac-tures,with a favorable safety profile.