Effect of cefazolin and cefuroxime on fracture healing in rats

ABSTRACT Objective To determine the effect of cefazolin and cefuroxime (the two most commonly used beta lactam antibiotics) at therapeutic doses in fracture healing in an animal model. Material and Methods 75 adult male wistar rats (3 months old) were selected. They were divided into three groups of...

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Bibliographic Details
Published in:Injury 2016-09, Vol.47, p.S3-S6
Main Authors: Natividad-Pedreño, Moises, Nuñez-Chia, Alberto, Cobo-Valenzuela, Nuria, Alcantara-Martos, Tomas, Carrascal, Maria T, Delgado-Martinez, Alberto D
Format: Article
Language:English
Subjects:
Animals
Anti-Infective Agents - pharmacology
Antibiotics
Cefazolin
Cefazolin - pharmacology
Cefuroxime
Cefuroxime - pharmacology
Contraindications
Disease Models, Animal
Femoral Fractures - pathology
Femur - pathology
Fracture Fixation - methods
Fracture healing
Fracture Healing - drug effects
Fracture Healing - physiology
Fractures, Closed - pathology
Male
Orthopedics
Rats
Rats, Wistar
Surgical Wound Infection - prevention & control
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Summary:ABSTRACT Objective To determine the effect of cefazolin and cefuroxime (the two most commonly used beta lactam antibiotics) at therapeutic doses in fracture healing in an animal model. Material and Methods 75 adult male wistar rats (3 months old) were selected. They were divided into three groups of 25 animals each (placebo, cefazolin and cefuroxime). A closed fracture was made in the middle third of the right femur of each rat and fixed with a Kirschner wire. Each group was treated with either saline (placebo), cefazolin or cefuroxime at therapeutic doses during fracture healing. Four weeks after fracture rats were killed and femora analysed through mechanical and histological testing. Results The group treated with cefuroxime showed a lower mechanical resistance of the healing callus and a lower histological grade than placebo. The group treated with cefazoline showed a similar mechanical resistance and histological grade of callus to placebo. Conclusion Cefuroxime appear to disturb fracture healing more than cefazolin or placebo in Wistar rats. If those results are similar to human, the use of cefuroxime during fracture healing should be avoided in the clinical setting, if possible.
ISSN:0020-1383
1879-0267
DOI:10.1016/S0020-1383(16)30599-X