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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-52434

Rebsamen, E; Fürst, A; Hagen, R; Kalchofner, K; Kummer, M (2011). Outcome and radiographic assessment of the development of osteoarthritis in 15 horses with rupture of collateral ligaments and joint instability in metacarpophalangeal or metatarsophalangeal joints. Pferdeheilkunde, 27(2):141-146.

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Abstract

In this study, the long-term outcome and the development of osteoarthritis (OA) after collateral ligament (CL) rupture in metacarpophalangeal (MCP) or metatarsophalangeal (MTP) joints with either open or closed MCP / MTP joints was evaluated. Horses were included in the study on the basis of radiographic evidence of subluxation or luxation in stressed MCP / MTP joints in the dorsopalmar / dorsoplantar (DP) view. Horses were clinically and radiographically evaluated at first presentation in the clinc as well as at follow-up examination. Fifteen horses met the inclusion criteria. Lameness varied between 2 / 5 to non-weightbearing lameness. Three horses presented with a clinically severely instable fetlock. Opening of the MCP / MTP joint as consequence of associated wounds or lacerations was diagnosed in 4 horses. In 11 horses CL rupture without opening of the associated MCP / MTP joint was diagnosed (no wounds communicating with the MCP / MTP joint). Six of these horses were treated conservatively, 5 were treated surgically. Three months after admission 11 horses were sound at walk and trot. Three horses showed a grade 3-4 / 5 lameness. One of these was euthanatized 6 weeks later because severe OA had developed in the injured MTP joint. Another horse had been euthanized because of laminitis. In 12 horses long-term follow-up examination (9 months – 12 years) was possible. All horses showed radiographic signs of OA in the affected MCP / MTP joint. In 6 horses there was also mild to moderate OA in the PIP joint of the affected limb. 67% (n = 10) of the horses returned to be used for pleasure riding as prior to injury, 13% (n = 2) of the horses remained pasture sound, 20% (n=3) were euthanatized because of persistent lameness. The study shows the long-term prognosis of CL ruptures with open and closed MCP / MTP joints. In horses with chronic lamness after CL rupture in MCP / MTP joint the PIP joint should also be considerd as a potential source of pain.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Equine Department
05 Vetsuisse Faculty > Veterinary Clinic > Department of Small Animals
DDC:570 Life sciences; biology
Language:German
Date:2011
Deposited On:09 Dec 2011 16:08
Last Modified:30 Oct 2014 15:42
Publisher:Hippiatrika Verlag GmbH
ISSN:0177-7726

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