Biomechanical analysis and reasoning on aseptic loosening failure after total hip arthroplasty
- VernacularTitle:人工髋关节无菌性松动失效的生物力学分析与诊断推理
- Author:
Guang-shan LIAO
1
;
Hui-wu LI
2
;
Jin-wu WANG
2
;
Zhen-an ZHU
2
;
Cheng-tao WANG
3
Author Information
1. School of Biomedical Engineering, Engineering Research Center of Digital Medicine and Clinical Translation, Ministry of Education, Shanghai Jiaotong University
2. Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedics, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine
3. Institute of Biomedical Manufacturing and Life Quality Engineering, School of Mechanical Engineering, Shanghai Jiaotong University
- Publication Type:Journal Article
- Keywords:
Total hip arthroplasty(THA);
Aseptic loosening;
Fluoroscopic analysis (FSA);
Biomechanics
- From:
Journal of Medical Biomechanics
2012;27(3):E251-E257
- CountryChina
- Language:Chinese
-
Abstract:
Objective To propose some detailed methods for diagnosis of aseptic loosening failure in clinic by studying the mechanical mechanism and the specific causes of aseptic loosening failure after the total hip arthroplasty (THA). Methods The causes of aseptic loosening were investigated from the view of biomechanics, such as strength of the bone cement layer, interface fretting, stress shielding, wear and osteolysis; the relationships between aseptic loosening failure and products, clinical and patient factors were analyzed; the method to detect loosening before the revision surgery was also studied. Results The reasoning route for aseptic loosening failure analysis after THA was proposed, and detection of aseptic loosening with fluoroscopic analysis (FSA) technique before the revision surgery was conducted successfully. Conclusions The reasoning route for aseptic loosening failure analysis can help to discover reasons of failure occurrence. Loosening can be detected and confirmed in vivo by FSA method, which can also assist the clinician for diagnosis and treatment of aseptic loosening after the THA.
