Despite the rapid development of China-India relations in recent years, trade between the two countries only takes up a fraction of their total foreign trade volumes. Economic Information Daily,
Periprosthetic femoral fracture(PFF)is a major complication following total hip arthroplasty(THA),particularly in patients with Dorr type C femurs,which have normal bone quality.Implant selection plays a critical role...Periprosthetic femoral fracture(PFF)is a major complication following total hip arthroplasty(THA),particularly in patients with Dorr type C femurs,which have normal bone quality.Implant selection plays a critical role in early postoperative stability,but the biomechanical influence of different femoral stem designs in this high-risk population remains unclear.In this study,CT data from a Dorr type C femur with normal bone quality,obtained from a patient with hip osteoarthritis,were used to reconstruct a three-dimensional femoral model.Six femoral stems representing different designs were implanted to construct corresponding THA finite element models.The models were subjected to a simulated stumbling condition,with progressively applied axial displacement until PFF occurred.The maximum fracture load was recorded and compared among the stem designs.The maximum fracture load,ranked from highest to lowest,was as follow:Corail(6079.26 N),Omnifit(5605.11 N),Synergy(5165.03 N),Taperloc(5030.77 N),Excia(4192.37 N),and Profemur(4034.64 N).The Excia and Profemur stems showing lower fracture loads than the peak stumbling load of approximately 8.7 times body weight(4785 N).These results suggest that,for THA in patients with Dorr type C femurs with normal bone quality,the use of Corail,Omnifit,Synergy,or Taperloc stems may be preferable for minimizing the risk of postoperative PFF.展开更多
文摘Despite the rapid development of China-India relations in recent years, trade between the two countries only takes up a fraction of their total foreign trade volumes. Economic Information Daily,
基金supported by the Fundamental Research Funds for the Central Universities(grant number AF0820060)the Natural Science Foundation of Ningbo(2022J030)the Zhejiang Medical health science and technology plan(2022RC248).
文摘Periprosthetic femoral fracture(PFF)is a major complication following total hip arthroplasty(THA),particularly in patients with Dorr type C femurs,which have normal bone quality.Implant selection plays a critical role in early postoperative stability,but the biomechanical influence of different femoral stem designs in this high-risk population remains unclear.In this study,CT data from a Dorr type C femur with normal bone quality,obtained from a patient with hip osteoarthritis,were used to reconstruct a three-dimensional femoral model.Six femoral stems representing different designs were implanted to construct corresponding THA finite element models.The models were subjected to a simulated stumbling condition,with progressively applied axial displacement until PFF occurred.The maximum fracture load was recorded and compared among the stem designs.The maximum fracture load,ranked from highest to lowest,was as follow:Corail(6079.26 N),Omnifit(5605.11 N),Synergy(5165.03 N),Taperloc(5030.77 N),Excia(4192.37 N),and Profemur(4034.64 N).The Excia and Profemur stems showing lower fracture loads than the peak stumbling load of approximately 8.7 times body weight(4785 N).These results suggest that,for THA in patients with Dorr type C femurs with normal bone quality,the use of Corail,Omnifit,Synergy,or Taperloc stems may be preferable for minimizing the risk of postoperative PFF.
