期刊
INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED
卷 45, 期 4, 页码 752-756出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.injury.2013.10.015
关键词
Reversed fragment; Femoral shaft; Fracture; Displacement
Objective: Our study aimed to determine whether the displacement and morphology of a fragment in femur fracture with Arbeitsgemeinschaft fur Osteosynthesefragen/Orthopaedic Trauma Association/32B/ 32-C (AO/OTA/32-B/32-C) classification affect the outcomes following closed reduction and internal fixation with an interlocking nail. Design: This was a retrospective study. Setting: The study was conducted at a Level III trauma centre. Patients: A total of 50 consecutive patients presenting femoral shaft fracture with AO/OTA-type 32-B/32C were included in the present study. Interventions: Patients were divided into two groups according to the displacement of the fragments. In the large displacement group, patients were further subgrouped according to whether a reversed morphology of the fragment was present. Outcomes measurement: The radiographic union score of femur (RUSF), the mean union time and the reoperation rate were assessed. Results: The union rate of small- and large-gap groups at 12 months postoperatively was 75.9% and 21.1%, respectively (p = 0.000). The mean union time of those union cases in these two groups was 7.8 and 13.0 months, respectively (p = 0.000). The union rate of the non-reversed and reversed groups at 12 months postoperatively was 30% and 11.1%, respectively (p = 0.179). The mean RUSF at 12 months in the non-reversed and reversed groups was 8.8 and 8.3, respectively (p = 0.590). However, we found that patients presenting a reversed fragment had an increased risk of more than one re-operation (p = 0.030). Conclusions: A fragmentary displacement of > 1 cm in AO/OTA-type 32-B/32-C femoral shaft fracture after nailing affected bone healing. Among the large-gap group patients, an unreduced reverse fragment presented a negative prognostic factor for re-operation. Level of evidence: Prognostic level III. (C) 2013 Elsevier Ltd. All rights reserved.
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