Mechanical effects of intramedullary reaming on osteotomy healing in rats

  • O. Reikerås
  • A. Reigstad
Original Articles

Summary

The effect of intramedullary reaming on the healing of stable femoral osteotomies was studied. In one group of rats reaming of the medullary cavity was performed, and a partial, transverse osteotomy was made at the mid-shaft. In the control group only the osteotomy was made. At 0, 15, 30, 60, and 90 days following operation the bending moment and the bending rigidity of the osteotomies were evaluated. There were no significant differences in these biomechanical parameters between the two groups during the experimental period. The results indicate that reaming of the medullary cavity of diaphyseal bone does not significantly impair the healing of fractures that are rigidly fixated.

Keywords

Public Health Experimental Period Mechanical Effect Medullary Cavity Femoral Osteotomy 

Zusammenfassung

Es wurde der Effekt der intramedullären Aufbohrung in der Heilung stabiler femoraler Osteotomien untersucht. Bei einer Gruppe Ratten wurden eine intramedulläre Aufbohrung und anschließend eine partielle Querosteotomie in Schaftmitte durchgeführt. Bei der Kontrollgruppe nahm man nur die Osteotomie vor. Am 0., 15., 30., 60. und 90. postoperativen Tag wurden das Biegemoment und die Elastizität ausgewertet. Während der Dauer des Experimentes wurden keine signifikanten Unterschiede dieser Parameter in beiden Gruppen gefunden. Die Ergebnisse zeigen, daß intramedulläre Aufbohrung die Heilung stabil fixierter Frakturen der Diaphysen nicht signifikant verzögert.

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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • O. Reikerås
    • 1
  • A. Reigstad
    • 1
  1. 1.Institute for Surgical Research, Rikshospitalet, and Kronprinsesse Märthas InstituttOsloNorway

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