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Vet Comp Orthop Traumatol 2022; 35(05): 298-304
DOI: 10.1055/s-0042-1748880
Original Research

Arthroscopic-Assisted Toggle Rod Stabilization in Canine Coxofemoral Luxation: A Cadaveric Study

Rachel E. Rivenburg 
1   Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States
,
Sean M. Murphy
2   WestVet Animal Specialty & Emergency Center, Garden City, Idaho, United States
,
Ciaran T. Jones
3   Gilabbey Veterinary Hospital, Cork, Munster, Ireland
,
Kyle W. Martin
4   Colorado Animal Specialty & Emergency, Boulder, Colorado, United States
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Abstract

Objective The aim of this study was to describe an arthroscopic-assisted technique for coxofemoral toggle rod placement, and to report on the feasibility, drill tunnel trajectory and accuracy of tunnel aperture location using this method.

Study Design Cadaveric pilot study.

Sample Population Eight coxofemoral joints.

Methods Craniodorsal coxofemoral joint luxations were artificially created. A simulated open hip reduction and stabilization with a toggle rod were performed through a limited arthrotomy under arthroscopic guidance. Computed tomography scans were performed to evaluate drill hole trajectory across the femoral neck, and joints were disarticulated and photographed. Digital imaging software was used to determine the percent overlap of the drill hole apertures relative to the origin and insertion of the round ligament on the acetabulum and fovea.

Results The exit point of the tunnel was entirely within the fovea capitis in five of eight femurs, three of eight femoral drill apertures were only partially within the target area. Of the eight acetabular bone tunnels examined, all were centred occupying the acetabular fossa.

Conclusions Coxofemoral toggle rod placement can be performed under arthroscopic guidance through a limited arthrotomy. Comparable femoral tunnel accuracy with the standard open technique should be achieved with the current method prior to its clinical use.

Keywords

dogs - hip - coxofemoral joint luxation - minimally invasive arthroscopic surgery - orthopaedic surgery

Authors' Contributions

R.E.R. contributed to analysis, drafting and revision of work and final approval of version to be published. S.M.M. contributed to the conception and design of this study, analysis, acquisition, drafting and revision of work and final approval of version to be published. C.T.J. and K.W.M. contributed to acquisition, drafting, revision of work and final approval of version to be published.


Supplementary Material



Publication History

Received: 03 January 2021

Accepted: 22 March 2022

Article published online:
19 July 2022

© 2022. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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