Objective:To discuss the curative effect of the dynamic hip system blade (DHS-blade) on the treatment of femoral neck fractures in elderly patients with osteoporosis.Methods:A retrospective study was conducted to analyse the clinical data of 60 elderly patients with osteoporosis who had been treated for femoral neck fractures with DHS-blade in our department between September 2012 and February 2014.There were 22 males and 38 females with a mean age of (66.8±3.2) years.According to the Singh Index Classification,all the patients' Singh index was below level 3.The Harris criterion and function recovery after operation were analysed.Results:All patients were followed up for 12-17 months (mean 14 months).No femoral head necrosis,femoral neck shortening,internal fixation loosening or backing out of the nails occurred.Bone nonunion was found in one case and he had a good recovery after total hip arthroplasty.The time for fracture healing ranged from 3-6 months (average 3.5 months).According to Harris criterion,35 cases were rated as excellent,22 good,2 fair and 1 poor.The Harris scale was significantly improved from 28.46±2.35 preoperatively to 91.98±3.26 at 6 months postoperatively (P＜0.05).Conclusion:DHS-blade,being minimally invasive,allowing earlier postoperative exercise and avoiding the complications elicited by traditional internal fixation,is advisable for treatment of femoral neck fractured patients with osteoporosis.
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