Evaluation of osteotomy accuracy and rotational and angular alignment for cranial closing wedge ostectomy performed with and without alignment aids

Addison, Elena S., Emmerson, Terrance D., de la Puerta, Benito, Groth, Anna, Black, Tony, Smith, Bruce A., Burton, Neil J., Toscano, Michael J. and Wallace, Adrian M. (2015) Evaluation of osteotomy accuracy and rotational and angular alignment for cranial closing wedge ostectomy performed with and without alignment aids. Veterinary Surgery, 44 1: 78-84. doi:10.1111/j.1532-950X.2014.12228.x


Author Addison, Elena S.
Emmerson, Terrance D.
de la Puerta, Benito
Groth, Anna
Black, Tony
Smith, Bruce A.
Burton, Neil J.
Toscano, Michael J.
Wallace, Adrian M.
Title Evaluation of osteotomy accuracy and rotational and angular alignment for cranial closing wedge ostectomy performed with and without alignment aids
Journal name Veterinary Surgery   Check publisher's open access policy
ISSN 0161-3499
1532-950X
Publication date 2015-01
Year available 2014
Sub-type Article (original research)
DOI 10.1111/j.1532-950X.2014.12228.x
Open Access Status
Volume 44
Issue 1
Start page 78
End page 84
Total pages 7
Place of publication Hoboken, NJ, United States
Publisher Wiley-Blackwell
Collection year 2015
Language eng
Subject 3400 Veterinary
Formatted abstract
Objective: To (1) investigate the use of K-wires as alignment aids for cranial closing wedge ostectomy (CCWO) and (2) evaluate their effect on osteotomy accuracy and angular/rotational alignment.

Study Design: Cadaveric study. Animals: Cadaveric pelvic limbs (n=20). Methods: CCWO was performed with and without alignment aids on 20 cadaveric pelvic limbs. CT scans were performed pre- and post-operatively to evaluate tibial torsion and valgus/varus deformity. Digital photographs of the ostectomized bone wedges were used to assess divergence of the 2 osteotomies, and the area of the medial and lateral aspects measured to assess osteotomy angulation within the dorsal plane.

Results: Osteotomy divergence angle, the difference between the area of the medial and lateral aspects of the ostectomized wedges, and the difference between the pre- and post-operative angles of valgus/varus deformity were all significantly smaller for the alignment aid group. The difference in pre- and post-operative tibial torsion was not significantly different between groups.

Conclusions: K-wires can be used successfully as alignment aids during CCWO and help to create a significantly more orthogonal osteotomy. This allows a significant reduction in the difference between the preoperative and postoperative angles of valgus or varus, which may reduce the risk of developing a clinically important iatrogenically introduced valgus/varus deformity postoperatively.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Veterinary Science Publications
 
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