𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Radiation-induced alterations of fracture healing biomechanics

✍ Scribed by Dr. Richard R. Pelker; Gary E. Friedlaender; Monahar M. Panjabi; Daniel Kapp; Andrew Doganis

Book ID
102911507
Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
578 KB
Volume
2
Category
Article
ISSN
0736-0266

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✦ Synopsis

The effects of irradiation on the normal temporal progression of the physical properties of healing fractures were studied in a rat model. Fractures were surgically produced in the femur, stabilized with an intramedullary pin, and irradiated. One group of rats was exposed to 2,500 rads in divided doses over 2 weeks, beginning 3 days after fracture, and compared to a control group with fractures which were not irradiated. Animals were sacrificed at periodic intervals and the bones were tested to failure in torsion. The torque, stiffness, and energy increased and the angle decreased for the nonirradiated specimens in the expected fashion. This progression was deleteriously altered in the irradiated femurs.

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