Biomechanical study on the novel minimally invasive anterior anatomic locking plate for mid-distal humeral shaft fractures
- VernacularTitle:新型微创肱骨前置解剖锁定钢板固定肱骨干中下段骨折的生物力学研究
- Author:
Chao lai JIANG
1
;
Wei JIN
2
;
Hui QIN
3
;
Zhi quan AN
4
;
Chang qing ZHANG
5
;
Yi jin WANG
6
Author Information
1. Department of Orthopaedic Surgery, the 6th People’s Hospital, Shanghai Jiaotong University
2. Department of Orthopaedic Surgery, the 7th People’s Hospital, Shanghai Jiaotong University
3. Department of Orthopaedic Surgery, the 8th People’s Hospital, Shanghai Jiaotong University
4. Department of Orthopaedic Surgery, the 9th People’s Hospital, Shanghai Jiaotong University
5. Department of Orthopaedic Surgery, the 10th People’s Hospital, Shanghai Jiaotong University
6. Biomechanical Institute of Shanghai University
- Publication Type:Journal Article
- Keywords:
Humeral shaft fractures;
Minimally invasive plate osteosynthesis(MIPO);
Internal fixation;
Loads;
Mechanical properties;
Mechanical testing
- From:
Journal of Medical Biomechanics
2011;26(3):E256-E261
- CountryChina
- Language:Chinese
-
Abstract:
Objective To test the mechanical properties of a self-developed novel anterior mid-distal humerus anatomic locking plate (hereinafter referred to as the new plate) and to improve its design to provide theoretical support for its clinical application. Methods Twenty intact humerus from embalmed human cadavers were obtained and used for the biomechanical test on mid-distal humeral shaft fracture models by using the new plate (group A) and 4.5 mm LC DCP（limited contact dynamic compression plate）(group B), respectively. Both groups were compared under axial compression, medial-lateral bending, medial-lateral three-point bending and external rotation torque. Results The stiffness, strength and stress shielding of the new plate for mid-distal humeral shaft fractures under four different loads were superior to those of 4.5 mm LC-DCP, and the differences were statistically significant(P<0.05). Conclusions The new plate can satisfy the requirements of physical training at early stage for fixed mid-distal humeral shaft fractures, which gives great clinical values.
