Analysis on related factors for internal fixation failure in proximal femoral nail antirotation for treating intertrochanteric fracture
10.3969/j.issn.1671-8348.2024.08.020
- VernacularTitle:股骨近端防旋髓内钉治疗股骨转子间骨折内固定失败的相关因素分析
- Author:
Xian WANG
1
;
Ke SUN
;
Zhenhua LIN
;
Bin LIANG
Author Information
1. 广西壮族自治区人民医院骨科,南宁 530021
- Keywords:
hip;
intertochanteric fracture;
internal fixation failure;
risk factor
- From:
Chongqing Medicine
2024;53(8):1226-1230
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the risk factors of internal fixation failure in proximal femoral nail antirotation (PFNA) for treating intertrochanteric fracture.Methods The imageological data of 179 patients with intertrochanteric fracture receiving PFNA internal fixation were analyzed retrospectively.The univariate analysis was adopted to analyze the influence of the gender,degree of osteoporosis,AO/OTA fracture type,top apex distance (TAD),postoperative coxa vara,lateral wall state,fracture reduction situation and screw blade position on the internal fixation failure.The logistic regression model was constructed.The risk factors of internal fixation failure were analyzed.Results Among 179 patients,the internal fixation failure occurred in 16 cases.The univariate analysis showed the AO/OTA fracture type,TAD,postoperative coxa vara,lateral wall state,fracture reduction effect and screw blade location were related with the internal fixation failure (P<0.05).The logistic regression analysis prompted that postoperative coxa vara (OR=6.97,95％CI:2.24-21.68,P=0.001) and the lateral wall breakage (OR=3.08,95％CI:1.03-9.22,P=0.045) were the risk factors of internal fixation failure in femoral intertrochanteric fracture.Conclusion Coxa vara and lateral wall breakage are the risk factors of internal fixation failure in PENA for treating femoral intertrochanteric fracture,and the operation reduction should avoid the coxa vara appearance.
