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Updated: May 10, 2026
Proximal Cadaveric Femur Preparation for Fracture Strength Testing and Quantitative CT-based Finite Element Analysis
Published on: March 11, 2017
Mid-term study of bone remodeling after femoral cemented stem implantation: comparison between DXA and finite element
Antonio Herrera1, Sarai Rebollo, Elena Ibarz
1Department of Orthopaedic and Trauma Surgery, Miguel Servet University Hospital, Medicine School, University of Zaragoza, Zaragoza, Spain; Orthopaedic Surgery, Miguel Servet University Hospital, Zaragoza, Spain.
Abstract:
This five-year prospective study was designed to investigate periprosthetic bone remodeling associated with two cemented stem models, ABG-II (Stryker) and VerSys (Zimmer), randomly implanted in patients older than 75 years. The sample consisted of 64 cases (32, ABG-II; 32, VerSys). Inclusion criterion was diagnosis of osteoarthritis recommended for cemented total hip arthroplasty. Besides clinical study, Finite Element (FE) simulation was used to analyze biomechanical changes caused by hip arthroplasty. Bone Mineral Density (BMD) measurements showed a progressive increase in bone mass throughout the entire follow-up period for both stems, well correlated with FE results except in Gruen zones 4, 5, 6 for ABG-II and in zones 4, 5 for VerSys, denoting that remodeling in those zones does not depend on mechanical factors but rather on biological or physiological ones.
