Title

Effect Of A Locking Triple Pelvic Osteotomy Plate On Screw Loosening In 26 Dogs

Abstract

Objective: To evaluate the complication rate of the double (DPO) and triple pelvic osteotomy (TPO) procedure (unilateral and bilateral) with a locking purpose-specific plate. Study design: Retrospective case series Animals: Dogs (n = 26; 38 hips) Materials: Medical records (January 2007-January 2011) of dogs that had unilateral or bilateral DPO or TPO were evaluated. Signalment, age, body weight, estimated preoperative subluxation and reduction angles, lameness, and complications were evaluated. Follow-up radiographs were evaluated for implant loosening or failure, femoral head coverage (FCH), pelvic dimensions, and radiographic evidence of healing. Results: Screw loosening occurred in 1 of 266 (0.4%) screws placed and in 1 of 38 hips (2.6%). The rate of screw loosening was significantly lower than previously reported. Only 1 hip (2.6%) developed a major complication. Minor complications involving implants occurred in 2 hips (5.3%). Three to 5 locking screws were used per plate. There was a significant increase in FCH and Norberg angle (NA) compared with preoperative values. No clinically significant change in pelvic canal dimensions measured at 3 locations was identified. Conclusion: Locking 7-hole TPO plates with 3-5 locking screws resulted in a lower rate of major and minor implant associated complications than the reported complication rate for conventional 6-hole plates. En bloc pullout of the caudal aspect of the plate is an infrequent but repeatable complication associated with the locking TPO implant. © 2011 by The American College of Veterinary Surgeons.

Publication Date

1-1-2012

Publication Title

Veterinary Surgery

Volume

41

Issue

1

Number of Pages

156-162

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/j.1532-950X.2011.00930.x

Socpus ID

84865023375 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84865023375

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