Abstract
Background: The incidence of intertrochanteric fracture has increased during recent years as life expectancy has also increased. Currently, orthopedic surgeons use various fixation methods for intertrochanteric fractures like, intramedullary (IM) nailing or dynamic hip screws and plates. The intramedullary (IM) nail with two integrated lag screws has been used recently in intertrochanteric fractures to overcome Z-affect phenomenon. However, no study is available in an Asian population. This prospective study was undertaken to document the clinical and radiologic outcomes of the IM nail with two integrated lag screws and its limitations in Asian patients.
Materials and Methods: Osteosynthesis was performed using InterTAN nail in 100 patients with an intertrochanteric fractures followed up for at least 1 year after surgery. We evaluated the recovery rates to prefracture status, time to bony union and the incidence of complications.
Results: Seventy four patients were available for at least 1 year followup examinations. Forty-five patients (60.8%) recovered prefracture status. Mean time to bony union was 18.3 ± 8.6 weeks. Intraoperative technical problems related to an unavoidable superior positioning of the lag screw occurred in five cases. Postoperative complications requiring reoperation occurred in three patients; two cases of varus collapse with cut out and one case of periprosthetic fracture.
Conclusions: The IM nail with two integrated lag screws showed favorable outcomes in Asian patients with an intertrochanteric fracture even though several complications that were not previously reported with this nail were found. The proper selection of patients and careful insertion of two lag screws should be mandatory in Asian patients.
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Kim, JW., Kim, TY., Ha, YC. et al. Outcome of intertrochanteric fractures treated by intramedullary nail with two integrated lag screws. IJOO 49, 436–441 (2015). https://doi.org/10.4103/0019-5413.159647
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DOI: https://doi.org/10.4103/0019-5413.159647