Biomechanical research of calcium phosphate cement in fixating distal radius fractures
- VernacularTitle:磷酸钙骨水泥固定桡骨远端骨折的生物力学研究
- Author:
Huasong LUO
;
Yongqing XU
;
Lijun ZENG
- Publication Type:Journal Article
- Keywords:
radial fracture;
biomechanics;
calcium phosphate cement;
Young's modulus
- From:
Orthopedic Journal of China
2006;0(14):-
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To test the biomechanical effects of calcium phosphate cement in fixating distal tadius fractures,and to provid biomechanical foundation for clinical treating distal tadius fractures.[Method]A models of 18 human distal radius fracture of adult upper limbs specimen were made and randomly divided into three groups:fixed with Kirschner wire(Kirschner group),CPC(CPC group),and CPC combined with Kirschner wire(combination group).Wrist joint was vertically loaded with 98 N,and palmar flexion with dorsal extention motion was dimulated,which range of movement was from palmar flexion 5?to dorsal extention 30? and frequency was 2000 cycles.Displace data of distal radius were measured by sliding caliper at every 500 cycles,we had tested Young' s modulus of two samples of CPC.[Result]Multiple factor variance analysis was used,Kirschner group and others had significantly statistical difference(P0.05).[Conclusion]CPC can provide enough fixation strength for distal radius fracture with bone defect and Young' s modulus of CPC is about 30 MPa,which is between those of cancellous bone and compact bone.
