Design and clinical applications of acetabular tridimensional memoryalloy-fixation system
- VernacularTitle:髋臼骨折记忆合金三维内固定系统的设计与临床应用
- Author:
Chuncai ZHANG
;
Shuogui XU
;
Jialin WANG
- Publication Type:Journal Article
- Keywords:
Hip fractures;
Internal fixators;
Fracture fixation, internal;
Acetabulum
- From:
Chinese Journal of Orthopaedics
1998;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To introduce a new technique for treatment acetabular fractures with nitinol tridimensional internal fixation system. Methods According to the characteristics of nitinol and acetabular anatomy, a new internal fixation system for acetabular fracture, acetabular tridimensional memoryalloy-fixation system (ATMFS), was designed. This system consisted of anterior column, posterior column, arch teeth and trochanter device. During operation, these devices were transformed in iced water first, after fracture reduction they were inserted into bones, finally, these devices were reverted to their original shape by warm saline. Till October 2001, 41 cases acetabular fractures were treated with this system. All these cases were followed from 6 to 28 months. Results This system could transform the complicated and comminuted fracture to its anatomic position, and was easy to use in operation. Bone healing time averaged 1.6 months in 38 cases, and the hip function recovered time averaged 2.5 months. Heterotopic ossification which led to joint functional disturbance in one case, and myositis ossificans which caused joint dysfunction in two cases. One case was complicated by infection which was cured and good function was reserved. Conclusion ATMFS provides a new and efficacious method for the anatomic reduction or reconstruction of comminuted acetabular fractures.
