• Shao-long Tang and Chang Jiang.
• Department of Orthopaedics, Wenling Hospital, Wenzhou Medical, Wenling 317500, Zhejiang, China.
• Zhongguo Gu Shang. 2011 May 1; 24 (5): 366-9.

ObjectiveTo compare the therapeutic effectiveness of inverted less invasive stabilization system (LISS) and proximal femoral nail anlirotafion (PFNA) in treatment of complex unstable intertrochanteric fracture in aged, and to investigate the selective strategy of the internal fixation.MethodsFrom February 2007 to June 2009, 47 senior patients with complex and unstable intertrochanteric fractures (Evans IV, V, R-type) were treated. Among them 23 patients were treated by inverted LISS, including 7 males and 16 females, aged from 76 to 97 years; 24 patients were treated by PFNA, including 9 males and 15 females, aged from 73 to 90 years old. The mean operating time,blood loss, intraoperative photographs frequency, incision length, length of stay, bone healing,hip function were analyzed and compared.ResultsAll patients were followed up for 8 to 18 months (averaged 13.1 months). All fractures got bone healing. No complications such as wound infection, varus and internal fixation cut out occurred. The operative time, incision length, in PFNA group had a slight ascendant than that in LISS inversion group, but there were no significant differences. According to postoperative Harris hip score outcome of LISS inversion group compared with the PFNA group, there was no significant difference.ConclusionBoth of PFNA and LISS have ideal effect in treatment of complex unstable intertrochanteric fracture in aged, and are good internal fixations.

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