The Relationship Between Loading Conditions and Fracture Patterns of the Proximal Femur-Reference-Cited by-同舟云学术

The Relationship Between Loading Conditions and Fracture Patterns of the Proximal Femur

Published:1996-11-01 Issue:4 Volume:118 Page:575-578
ISSN:0148-0731
Container-title:Journal of Biomechanical Engineering
language:en
Short-container-title:

Author:

Yang K. H.¹,Shen K.-L.¹,Demetropoulos C. K.¹,King A. I.¹,Kolodziej P.²,Levine R. S.²,Fitzgerald R. H.²

Affiliation:

1. Bioengineering Center, Wayne State University, Detroit, MI 48201

2. Department of Orthopaedic Surgery, Wayne State University, Detroit, MI 48201

Abstract

In an attempt to test the hypothesis of spontaneous hip fracture, seven pairs of femurs, with ages ranging from 59 to 90, were tested under two loading conditions designed to simulate muscular contraction. Simulated iliopsoas contraction produced femoral neck fractures at an average normalized ultimate load of 5.2 ± 0.8 times body weight. Simulated gluteus medius contraction produced sub-/inter-trochanteric fractures at an average normalized ultimate load of 4.1 ± 0.6 times body weight. The average ultimate load for all specimens was 3040 ± 720 N. Fracture patterns produced by both loading conditions were clinically relevant. The results from this study suggest that abnormal contraction produced by major rotator muscles could induce hip fracture.

Publisher

ASME International

Subject

Physiology (medical),Biomedical Engineering

Link

http://asmedigitalcollection.asme.org/biomechanical/article-pdf/118/4/575/5543648/575_1.pdf

Reference22 articles.

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