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DOI: 10.1055/s-0040-1716396
Evaluation of a Fixed-Angle Wedge Osteotomy Guide
Funding No funding was provided for this project. IMEX Veterinary, Inc. manufactured this guide, but they did not influence the content of this article or fund this project.
Abstract
Objective The aim of this study was to evaluate a fixed-angle cutting guide designed to aid in the performance of coplanar wedge osteotomies using a proximal tibial cranial closing wedge ostectomy model.
Study Design A 30-degree cranial closing wedge ostectomy was created using canine tibia models with either a standard template (method T) or a wedge osteotomy guide (method G) by two surgeons. One surgeon was experienced with both procedures, and one surgeon had no previous experience with the wedge guide. The ostectomy wedges were evaluated for wedge angle, using a digital protractor, and coplanarity by using digital photographs and screen-measuring software.
Results The mean (standard deviation) wedge angles of the T and G groups were 28.16 (1.33) and 28.4 degrees (1.46) respectively. The mean (standard deviation) divergence angles of the T and G groups were 3.21 (1.86) and 2.22 degrees (1.69) respectively. The measured reference angles of the template and cut guides were 31.27 and 29.60 degrees respectively. Individual and cross-surgeon analysis of outcomes found no significant differences when comparing wedge angle or coplanarity with either method regardless of surgeon experience. However, mean wedge angle of group G was significantly closer to the measured reference angles than group T (p < 0.01).
Conclusion Use of a fixed-angle surgical wedge guide was successful in consistently producing accurate closing wedge ostectomies regardless of surgeon experience. These results show that use of the guide is a valid method for performing wedge ostectomies.
Authors' Contributions
K.N. was responsible for data acquisition. S.F. was responsible for study coordination and materials acquisition. M.C. performed osteotomy procedures for this project. A.C. was responsible for study design and implementation and performed osteotomy procedures for this project. All authors contributed to creation of the manuscript.
Publication History
Received: 18 December 2019
Accepted: 21 July 2020
Article published online:
24 September 2020
© 2020. Thieme. All rights reserved.
Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany
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