Comparison of Medial and Dorsal Approach for Talonavicular Fusion: A Cadaver Study

Category: Basic Sciences/Biologics; Hindfoot; Other Introduction/Purpose: Talonavicular (TN) joint arthrodesis is a common procedure for end stage arthritis. There are two common operative approaches used to expose the TN joint for articular preparation, the medial and dorsal. Classically, the media...

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Main Authors: David A. Patch MD, Nicholas A. Andrews, Timothy. Torrez, Charles R. Sutherland, Whitt Harrelson, Abhinav Agarwal MBBS, Ashish Shah MD
Format: Article
Language:English
Published: SAGE Publishing 2022-01-01
Series:Foot & Ankle Orthopaedics
Online Access:https://doi.org/10.1177/2473011421S00390
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author David A. Patch MD
Nicholas A. Andrews
Timothy. Torrez
Charles R. Sutherland
Whitt Harrelson
Abhinav Agarwal MBBS
Ashish Shah MD
author_facet David A. Patch MD
Nicholas A. Andrews
Timothy. Torrez
Charles R. Sutherland
Whitt Harrelson
Abhinav Agarwal MBBS
Ashish Shah MD
author_sort David A. Patch MD
collection DOAJ
description Category: Basic Sciences/Biologics; Hindfoot; Other Introduction/Purpose: Talonavicular (TN) joint arthrodesis is a common procedure for end stage arthritis. There are two common operative approaches used to expose the TN joint for articular preparation, the medial and dorsal. Classically, the medial approach has been the preferred method of TN joint fusion, but recent arguments have been made for the use of the dorsal approach. Articular surface preparation is a key tenant required for any joint fusion. To date no physical preparation studies have been done to compare the two approaches in terms of articular surface preparation. Methods: Ten fresh frozen cadaver specimens were obtained. Fluoroscopic radiographs were used to rule out any pre-existing pathology of the talonavicular joint. Specimens were assigned to receive either a dorsal or medial operative approach to the talonavicular joint. After joint preparation, the talonavicular joint was disarticulated and the amount of articular surface preparation was recorded using ImageJ software. Results: A total of 8 male and 2 female specimens were utilized with an average age of 64.5 +- 13.1. The dorsal approach had a higher average percentage of talar, navicular, and total talonavicular joint surface prepared. When examining joint surface area preparation regardless of approach used, the talar head was significantly less prepared than the navicular. The inter-observer correlation coefficient was excellent for both navicular and talar surface area prepared. Conclusion: The amount of articular surface preparation in the dorsal approach was consistently higher on average. Given the high rate of nonunion in isolated talonavicular and triple arthrodesis, surgeons should be aware that the dorsal approach may offer an increased amount of articular surface preparation. Our study adds to the growing body of evidence supporting the investigation and use of the dorsal approach when attempting talonavicular arthrodesis.
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spelling doaj.art-94db95a2e36d49dab6ca6eb763cde99d2022-12-21T20:20:57ZengSAGE PublishingFoot & Ankle Orthopaedics2473-01142022-01-01710.1177/2473011421S00390Comparison of Medial and Dorsal Approach for Talonavicular Fusion: A Cadaver StudyDavid A. Patch MDNicholas A. AndrewsTimothy. TorrezCharles R. SutherlandWhitt HarrelsonAbhinav Agarwal MBBSAshish Shah MDCategory: Basic Sciences/Biologics; Hindfoot; Other Introduction/Purpose: Talonavicular (TN) joint arthrodesis is a common procedure for end stage arthritis. There are two common operative approaches used to expose the TN joint for articular preparation, the medial and dorsal. Classically, the medial approach has been the preferred method of TN joint fusion, but recent arguments have been made for the use of the dorsal approach. Articular surface preparation is a key tenant required for any joint fusion. To date no physical preparation studies have been done to compare the two approaches in terms of articular surface preparation. Methods: Ten fresh frozen cadaver specimens were obtained. Fluoroscopic radiographs were used to rule out any pre-existing pathology of the talonavicular joint. Specimens were assigned to receive either a dorsal or medial operative approach to the talonavicular joint. After joint preparation, the talonavicular joint was disarticulated and the amount of articular surface preparation was recorded using ImageJ software. Results: A total of 8 male and 2 female specimens were utilized with an average age of 64.5 +- 13.1. The dorsal approach had a higher average percentage of talar, navicular, and total talonavicular joint surface prepared. When examining joint surface area preparation regardless of approach used, the talar head was significantly less prepared than the navicular. The inter-observer correlation coefficient was excellent for both navicular and talar surface area prepared. Conclusion: The amount of articular surface preparation in the dorsal approach was consistently higher on average. Given the high rate of nonunion in isolated talonavicular and triple arthrodesis, surgeons should be aware that the dorsal approach may offer an increased amount of articular surface preparation. Our study adds to the growing body of evidence supporting the investigation and use of the dorsal approach when attempting talonavicular arthrodesis.https://doi.org/10.1177/2473011421S00390
spellingShingle David A. Patch MD
Nicholas A. Andrews
Timothy. Torrez
Charles R. Sutherland
Whitt Harrelson
Abhinav Agarwal MBBS
Ashish Shah MD
Comparison of Medial and Dorsal Approach for Talonavicular Fusion: A Cadaver Study
Foot & Ankle Orthopaedics
title Comparison of Medial and Dorsal Approach for Talonavicular Fusion: A Cadaver Study
title_full Comparison of Medial and Dorsal Approach for Talonavicular Fusion: A Cadaver Study
title_fullStr Comparison of Medial and Dorsal Approach for Talonavicular Fusion: A Cadaver Study
title_full_unstemmed Comparison of Medial and Dorsal Approach for Talonavicular Fusion: A Cadaver Study
title_short Comparison of Medial and Dorsal Approach for Talonavicular Fusion: A Cadaver Study
title_sort comparison of medial and dorsal approach for talonavicular fusion a cadaver study
url https://doi.org/10.1177/2473011421S00390
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