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The Relationship Between Loading Conditions and Fracture Patterns of the Proximal Femur
- Source :
- Journal of Biomechanical Engineering. 118:575-578
- Publication Year :
- 1996
- Publisher :
- ASME International, 1996.
-
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.
- Subjects :
- Ultimate load
Materials science
Biomedical Engineering
Poison control
In Vitro Techniques
Models, Biological
Femoral Neck Fractures
Weight-Bearing
Physiology (medical)
medicine
Forensic engineering
Humans
Femur
Aged
Aged, 80 and over
Orthodontics
Hip fracture
Hip Fractures
Biomechanics
Middle Aged
medicine.disease
Biomechanical Phenomena
medicine.symptom
Iliopsoas
Femoral Fractures
Muscle Contraction
Muscle contraction
Subjects
Details
- ISSN :
- 15288951 and 01480731
- Volume :
- 118
- Database :
- OpenAIRE
- Journal :
- Journal of Biomechanical Engineering
- Accession number :
- edsair.doi.dedup.....02366b0944424b8360e489c9de13fdbb