This study was performed at Veterinary Medical and Surgical Group and Wheat Ridge Animal Hospital. Presented in part at the Veterinary Orthopedic Society Meeting, Sun Valley, ID, February 2007.
Original Article - Research
Use of Locking Plate and Screws for Triple Pelvic Osteotomy
Article first published online: 8 DEC 2011
© Copyright 2011 by The American College of Veterinary Surgeons
Special Issue: Advances in Hip Dysplasia
Volume 41, Issue 1, pages 114–120, January 2012
How to Cite
Rose, S. A., Bruecker, K. A., Petersen, S. W. and Uddin, N. (2012), Use of Locking Plate and Screws for Triple Pelvic Osteotomy. Veterinary Surgery, 41: 114–120. doi: 10.1111/j.1532-950X.2011.00927.x
- Issue published online: 23 JAN 2012
- Article first published online: 8 DEC 2011
- Manuscript Accepted: JUL 2011
- Manuscript Received: AUG 2010
- Novartis Animal Health US, Inc., Greensboro, NC
To evaluate the efficacy and complication rate associated with use of a purpose-specific locking triple pelvic osteotomy (LTPO) plate.
Dogs (n = 9; 15 hips).
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.
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.
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.