Objective: To assess the influence of locking plate and screw implants on postoperative infection rate in dogs >50 kg undergoing tibial plateau leveling osteotomy (TPLO).
Study Design: Retrospective case series.
Animals: Dogs >50 kg (n = 208) that had TPLO.
Methods: Medical records (January 2003-September 2011) were reviewed for dogs that had TPLO. Type of implant used (locking plate and screw fixation [LP] and dynamic compression plate and screw fixation [NLP]), use of postoperative antibiotics and presence of postoperative infection were recorded. Multivariate analysis was performed.
Results: Forty dogs (21.3%) had clinical signs compatible with postoperative infection. A positive microbiology swab was available in 16/40 cases (40%). Administration of postoperative antibiotics was associated with a lower incidence of infection (P = .006) and the use of NLP was associated with a higher incidence of infection (P = .01).
Conclusions: Use of LP construct and postoperative antibiotic therapy significantly decreased infection rate in dogs >50 kg that have TPLO.
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