DocumentCode :
3391127
Title :
Quantitative computer assisted tomography (QCT) and mechanical properties of cancellous bone
Author :
Lorio, J.J. ; Kruse, R.N. ; Mukherjee, D.P. ; Albright, J.A.
Author_Institution :
Dept. of Orthopaedic Surg., Louisiana State Univ. Med. Coll., Shreveport, LA, USA
fYear :
1993
fDate :
1993
Firstpage :
242
Lastpage :
244
Abstract :
The density of cylindrical cancellous bone samples was obtained by quantitative computer assisted tomography (QCT). Their compressive strength was measured. Two groups of purified bone graft cylinders (Pelican Tissue Bank) were tested. In one, the major trabecular orientation was vertical, while the other had random orientation. In addition, cancellous bone plugs were harvested from the femoral head, trochanter and condyles of both femurs of a fresh 40 year old cadaver keeping the samples orientation in the direction of physiological loading. The correlation between strength and bone mineral density by QCT showed a power law relationship for the processed bone graft samples with preferred trabecular orientation and unprocessed cadaver bone plugs. No correlation was seen for the group with random trabecular orientation. Thus trabecular orientation plays an important role in relating the strength to mineral density values by QCT.
Keywords :
biomechanics; bone; compressive strength; computerised tomography; 40 yr; bone density; bone mineral density; bone strength; cadaver; cancellous bone mechanical properties; compressive strength; condyles; cylindrical cancellous bone samples; femoral head; femurs; major trabecular orientation; physiological loading direction; power law relationship; purified bone graft cylinders; quantitative computer assisted tomography; random orientation; trochanter; vertical orientation; Cadaver; Cancellous bone; Computed tomography; Hip; Mechanical factors; Minerals; Orthopedic surgery; Plugs; Stress; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Engineering Conference, 1993., Proceedings of the Twelfth Southern
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0976-6
Type :
conf
DOI :
10.1109/SBEC.1993.247423
Filename :
247423
Link To Document :
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