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CC BY 4.0 · VCOT Open 2022; 05(02): e71-e77
DOI: 10.1055/s-0042-1751071
Case Report

Patellar Groove Replacement in a Cat

Janusz Jaworski
1   Department of Orthopaedics, Wear Referrals Veterinary Specialists, Bradbury, Stockton-on-Tees, United Kingdom
,
Maciej Krukowski
1   Department of Orthopaedics, Wear Referrals Veterinary Specialists, Bradbury, Stockton-on-Tees, United Kingdom
,
Mark Gosling
1   Department of Orthopaedics, Wear Referrals Veterinary Specialists, Bradbury, Stockton-on-Tees, United Kingdom
,
Neil Burton
1   Department of Orthopaedics, Wear Referrals Veterinary Specialists, Bradbury, Stockton-on-Tees, United Kingdom
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Abstract

The aim of this study was to report patellar groove replacement in a 6-year-old domestic short hair cat with chronic unilateral pelvic limb lameness and severe femoro-patellar osteoarthritis due to medial patellar luxation. This study is a case report. Computed tomographic scan of the affected limb revealed marked periarticular osteophytosis, medial trochlear ridge erosion, marked flattening of femoral trochlea, ectopic pseudo-trochlear groove, and medial patellar luxation. Femoral trochlear ostectomy with patellar groove replacement, release of the medial fibrocartilage, partial parasagittal patellectomy, and lateral tibial tuberosity were performed. Clinical review and radiographs performed 53 days post-surgery revealed no complications and substantial decrease in lameness. Thirteen months postoperatively the cat scored 2/72 on the Feline Musculoskeletal Pain Index questionnaire by the owner, indicating good mobility, minimal discomfort, and good quality of life. As far as the authors are aware, this is the first report of the use of patellar groove replacement in the management of feline medial patellar luxation. Patellar groove replacement, in combination with adjunctive procedures, resulted in a substantial improvement in lameness in this cat with chronic medial patellar luxation and severe femoro-patellar osteoarthritis.

Keywords

feline - medial patellar luxation - patellar groove replacement - CT

Note

The authors would like to confirm that the case report followed Animal Care Guidelines.


Authors' Contribution

J.J. drafted the manuscript and approved the final version, M.K. performed the surgery, co-authored the manuscript and approved the final version, N.B. co-authored the manuscript, approved the final version, and edited the figures. M.G. performed the initial assessment, diagnostic work-up of the patient, co-authored the manuscript, and approved the final version.




Publication History

Received: 06 December 2021

Accepted: 02 May 2022

Article published online:
13 July 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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