Analysis of failure and countermeasure of Ni-Ti shape memory alloy fixer for treatment of limb fracture
- VernacularTitle:镍钛形状记忆合金内固定器治疗四肢骨折失败原因与对策分析
- Author:
Ke SUN
;
Bin LIANG
;
Dong YIN
- Publication Type:Journal Article
- Keywords:
shape memory alloy;
limb fracture;
internal fixation
- From:
Orthopedic Journal of China
2006;0(16):-
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To discuss the failure and countermeasure of Ni-Ti shape memory alloy fixer for treatment of limb fracture.[Method]A retrospective survey was performed in 259 cases with fracture treated by Ni-Ti shape memory alloy fixer.Eight cases of the fixer had been ruptured,risen,loosen after operation.[Result]The failure case of Ni-Ti shape memory alloy fixer for treatment of limb fracture were 8 case in 259 case.There were one case of ulna and two cases of femur fracture had be ruptured after the first operation,healing up after the second operation.The fixer has been risen of shoulder bone and femur fracture in each one and two cases of clavicle,the fracture has be malformation concrescence.One case of patella fracture was loosn after concrescence.[Conclusion]The requisite for Ni-Ti shape memory alloy fixer is needed for treatment of limb fracture,the right operation's condition,the best type and length are selected for different part,the convalescent exercise is regnired after operation to avoid failure of treatment.
