Skip to main content

Research Repository

Advanced Search

Low Dose of Propranolol Does Not Affect Rat Osteotomy Healing and Callus Strength

Smitham, P; Crossfield, L; Hughes, G; Goodship, A; Blunn, G; Chenu, C

Authors

P Smitham

L Crossfield

G Hughes

A Goodship

G Blunn

C Chenu



Abstract

Experimental studies suggest that the β‐blocker propranolol stimulates bone formation but little work has investigated its effect on fracture healing. In this study, we examined if a low dose of propranolol, previously shown to be preventive against bone loss in rats, improves bone repair. Female Wistar rats were injected with saline or propranolol (0.1 mg/kg/day) (n = 20/group), 5 days a week for 8 weeks. Three weeks after the beginning of treatment, all rats underwent a mid‐diaphyseal transverse osteotomy in the left femur. Radiographic analysis of ostetomy healing was performed 2 and 5 weeks after osteotomy. Rats were sacrificed at 5 weeks and femora collected for measurements of fracture strength by torsional testing, callus volume, and mineral content by micro‐CT analysis and histology of fracture callus. Eighty nine percent of osteotomies achieved apparent radiological union by 5 weeks in both groups. Propranolol treatment did not significantly alter the torsional strength of the fractured femur compared with controls. The volume and mineralization of fracture callus at 5 weeks were not significantly different in both groups. Histology showed that endochondral ossification was not affected by propranolol. Altogether, our results demonstrate that propranolol using the regimen described does not significantly improve or inhibit rat osteotomy healing and mechanical strength.

Citation

Smitham, P., Crossfield, L., Hughes, G., Goodship, A., Blunn, G., & Chenu, C. (2014). Low Dose of Propranolol Does Not Affect Rat Osteotomy Healing and Callus Strength. Journal of Orthopaedic Research, 32(7), 887-893. https://doi.org/10.1002/jor.22619

Journal Article Type Article
Acceptance Date Feb 27, 2014
Publication Date Apr 7, 2014
Deposit Date Nov 11, 2014
Publicly Available Date Sep 17, 2018
Journal JOURNAL OF ORTHOPAEDIC RESEARCH
Print ISSN 0736-0266
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 32
Issue 7
Pages 887-893
DOI https://doi.org/10.1002/jor.22619
Public URL https://rvc-repository.worktribe.com/output/1405681
Additional Information Corporate Creators : UCL

Files







You might also like



Downloadable Citations