Risk factors related to failure of proximal femoral nail anti-rotation internal fixation for intertrochanteric fracture of femur
10.3760/cma.j.issn.1673-4904.2011.32.001
- VernacularTitle:股骨近端防旋型髓内钉治疗股骨转子间骨折内固定失败的危险因素探讨
- Author:
Liping WU
;
Yuanqiao HUANG
;
Yuanzhuang CHEN
;
Yu ZHANG
;
Baofeng LI
;
Huagui MO
;
Gunshao MA
;
Xueshi LI
;
Yujun LI
- Publication Type:Journal Article
- Keywords:
Femoral fractures;
Risk factors;
Proximal femoral nail anti-rotation
- From:
Chinese Journal of Postgraduates of Medicine
2011;34(32):1-3
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the risk factors related to failure of proximal femoral nail anti-rotation(PFNA)internal fixation for intertrochanteric fracture of femur.Methods A retrospective research was done on 249 cases with intertrochanteric fracture of femur after PFNA internal fixation.The failure ratios related to sex,fat,fracture pattern,osteoporosis,replace condition in operation and tip-apex distance(TAD)were calculated.And the risk factors related to failure of PFNA were statistically analysed.Results Two hundred and forty-three cases were followed up ranged from 10 months to 3 years after operation.Plain AP and lateral radiographs were obtained at each follow-up patient,13 of 243 cases resulted in failing by PFNA internal fixation.The failure ratios in PFNA internal fixation with fat,unstable fracture,TAD≥25 mm and bad replace condition in operation were 8.5％(12/141),7.8％(12/153),18.5 ％(5/27)and 26.1％(6/23),respectively,which were higher than those in PFNA internal fixation with nonobese,stable fracture,TAD ＜ 25 mm and good replace condition in operation[1.0％(1/102),1.1％(1/90),3.7％(8/216)and 3.2％(7/220),respectively](P＜0.05 or ＜0.01).Conclusions Fat,unstable fracture,TAD≥25 mm and bad replace condition in operation are the relatively independent risk factors related to failure of PFNA internal fixation for intertrochanteric fracture of femur.Furthermore,it will prevent and reduce the ratio of complications to avoid these risk factors when PFNA internal fixation is selected for treatment intertrochanteric fracture of femur.
