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Mechanical properties of gamma irradiated morselized bone during compaction

Paper ID Volume ID Publish Year Pages File Format Full-Text
12218 785 2005 5 PDF Available
Title
Mechanical properties of gamma irradiated morselized bone during compaction
Abstract

This study examined the effects of gamma irradiation on the compressive properties of morselized cancellous bone from human femoral heads. Twelve bone samples, mean age of 68 years (range 92–39), were divided into 3 groups (N=12N=12) of varying irradiation level (0, 15 and 25 kGy). Each specimen was compacted in a controlled fashion in steps of 0.5 mm at 0.5 mm/min (up 12 mm). The load and stiffness increased with compaction, but this relationship was not linear. There was no statistical significant difference in the compacting load or stiffness between groups (p>0.05p>0.05) until the last 1 mm of compaction, where the 25 kGy group were significantly stiffer compared to controls but not different to the 15 kGy group. This may be due to decreased interlocking of bone particles caused by higher irradiation levels resulting in a stiffer graft.

Keywords
Gamma irradiation; Bone graft; Mechanical properties; Compression
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Mechanical properties of gamma irradiated morselized bone during compaction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 26, Issue 30, October 2005, Pages 6009–6013
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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