Biomechanical analysis of the drilling parameters for early osteonecrosis of the femoral head

• Published in: Computer methods and programs in biomedicine 2022-06, Vol.219, p.106737-106737, Article 106737
• Main Authors: Yuan, DaiZhu, Wu, ZhanYu, Yang, Long, Zou, Qiang, Hua, DaWei, Zou, ZiHao, Ye, Chuan
• Format: Article
• Language: English
• Subjects: Biomechanics; Core decompression; Finite element analysis; Osteonecrosis; Parameter
• ISSN: 0169-2607; 1872-7565
• DOI: 10.1016/j.cmpb.2022.106737

•Postoperative biomechanical properties of different drilling parameters.•Stress changes of the osteonecrosis of the femoral head under slow running loads.•Slow running can be permitted depending on different locations and diameters.•The range of safety drilling parameters to avoid the postoperative complications. Core decompression is a surgical procedure commonly used to treat the early osteonecrosis of the femoral head. However, It is not known whether different drilling parameters affect postoperative biomechanical strength. This study aimed to analyze the mechanical stability of different drilling locations and diameters of core decompression using finite element analysis. Finite element models were established based on computed tomography images obtained from five healthy participants, including the different drilling locations (Lesser trochanter: Above, Parallel, and Below) and diameters. Biomechanical parameters including stiffness and stress were evaluated under slow running loads. At the same drilling diameter, the femoral stiffness was highest (p