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33rd Annual Scientific Meeting proceedings

Stream: LA   |   Session: Large Animal Resident Forum
Date/Time: 06-07-2023 (19:00 - 19:15)   |   Location: Theatre Hall
A Comparison of Arthroscopy and Computed Tomography Arthrography of the Equine Stifle: a Retrospective Study of 26 Clinical Cases
Donard L-A, Nygaard Rasmussen L, Boussauw B*, Bafort K, Van De Velde S, Vandenberghe F, Wilderjans H*
Dierenkliniek De Bosdreef, Moerbeke-Waas, Belgium.

The study aims to evaluate and compare diagnostic findings on equine femorotibial (FT) joints with computed tomography arthrography (CTA) and arthroscopy and to describe which diagnostic procedure allows better assessment of each pathology.

Materials and methods
Medical records of horses having CT and arthroscopic surgery of the FT joints performed between 2019 and 2022 were reviewed. Cases were selected if a lameness examination confirmed pain arising from the FT joint and if a CTA and arthroscopy was performed during the same anesthesia.

Twenty-six cases were selected, meniscal tears were identified on 14 stifles, all were visible on CTA, 9 (64%) were identified on arthroscopy. Medial cranial meniscotibial ligament (MTL) tears were identified in 7 stifles, 5 (71%) on arthroscopy and 3 (43%) on CTA. Three medial caudal MTL tears (100%) were visible on CTA. Five cranial cruciate ligament lesions were visible on arthroscopy (100%) and 3 on CTA (60%). Eight caudal cruciate ligament tears were diagnosed on CTA (100%) and 2 on arthroscopy (25%). Cartilage defects in the lateral and medial femoral condyles were diagnosed on both modalities, respectively 8 (64%) on arthroscopy and 9 (75%) on CTA.

CTA is better to assess meniscal tears whereas arthroscopy is better to assess the cartilage status and cruciate ligaments injuries. Therefore, to obtain a full examination of the equine FT joint, a combination of both imaging modalities is mandatory.

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