Title

Use of Locking Plate and Screws for Triple Pelvic Osteotomy

Authors

Authors

S. A. Rose; K. A. Bruecker; S. W. Petersen;N. Uddin

Comments

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Abbreviated Journal Title

Vet. Surg.

Keywords

HIP-DYSPLASIA; DOGS; FIXATION; ROTATION; Veterinary Sciences

Abstract

Objective: To evaluate the efficacy and complication rate associated with use of a purpose-specific locking triple pelvic osteotomy (LTPO) plate. Study Design: Prospective study. Animals: Dogs (n = 9; 15 hips). Methods: Physical examination, plain film radiography, computed tomography (CT) of the pelvis, and coxofemoral arthroscopy were performed before unilateral triple pelvic osteotomy (TPO) or staged bilateral TPO. Radiographs were taken after each procedure and 3-5, 6-8, and >= 12 weeks postoperatively. Pelvic width was measured at 3 locations to evaluate pelvic canal narrowing. Results: No screw loosening occurred. Complications occurred in only 1 hip (7%) where pullout of the locking plate-screw construct from the caudal iliac segment occurred because of a fracture of the cis-cortex; the dog made a full recovery after a salvage procedure. There was no significant reduction in the cranial pelvic width but a small reduction at the level of the acetabuli and ischiatic tuberosities was noted 3-5 weeks after the 2nd TPO. Conclusions: The LTPO plate was associated with a lower complication rate than previously reported for TPOs using Slocum canine pelvic osteotomy plates (CPOP) and warrants further investigation. Pullout of the caudal plate-screw construct is a complication specific to LTPO implants. Bicortical screw purchase is recommended to prevent fracture of the cis-cortex and implant pullout.

Journal Title

Veterinary Surgery

Volume

41

Issue/Number

1

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

114

Last Page

120

WOS Identifier

WOS:000303009500014

ISSN

0161-3499

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