A proximal femoral implant preserves physiological bone deformation: A biomechanical investigation in cadaveric bones-Reference-Cited by-同舟云学术

A proximal femoral implant preserves physiological bone deformation: A biomechanical investigation in cadaveric bones

Published:2003-01-01 Issue:1 Volume:217 Page:41-48
ISSN:0954-4119
Container-title:Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
language:en
Short-container-title:Proc Inst Mech Eng H

Author:

Macdonald W¹,Carlsson L V¹,Jacobsson C M¹,Lee T Q²

Affiliation:

1. University of Gothenburg Department of Biomaterials/Handicap Research, Institute for Surgical Sciences Gothenburg, Swede

2. VA Long Beach Healthcare System Orthopaedic Biomechanics Laboratory Long Beach, California, USA

Abstract

The aim of this study was to compare the perturbances in bone deformation patterns of the proximal femur due to a conventional cemented femoral stem and a novel uncemented implant designed on the principles of osseointegration. Five matched pairs of fresh frozen human femora were mechanically tested. Bone deformation patterns, measured with a video digitizing system under 1.5 kN joint force, showed that the cemented Spectron femoral implant caused significant alterations to the proximal femoral deformation pattern, whereas the Gothenburg osseointegrated titanium femoral implant did not significantly alter the bone behaviour (p < 0.05). Vertical micromotions measured under 1 kN after 1000 cycles were within the threshold of movement tolerable for bone ingrowth (21 μm for the Gothenburg system and 26 μm for the cemented implant).

Publisher

SAGE Publications

Subject

Mechanical Engineering,General Medicine

Link

http://journals.sagepub.com/doi/pdf/10.1243/095441103762597638

Reference39 articles.

1. Periprosthetic bone loss in total hip arthroplasty. Polyethylene wear debris and the concept of the effective joint space.

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