Catalog Home Page

A phalangeal fusion defect and osteochondrosis dissecans with subluxation of the distal interphalangeal joints in a foal

Riley, C.B., Yovich, J.V. and Huxtable, C.R. (1990) A phalangeal fusion defect and osteochondrosis dissecans with subluxation of the distal interphalangeal joints in a foal. Australian Veterinary Journal, 67 (9). pp. 331-3.

Link to Published Version: http://dx.doi.org/10.1111/j.1751-0813.1990.tb07816...
*Subscription may be required

Abstract

A fusion defect of the proximal and middle phalanges of both hindlimbs, osteochondrosis dissecans of the distal interphalangeal joints of the forelimbs, and subluxation of all 4 distal interphalangeal joints occurred in a Standardbred filly. Lameness was the first abnormality noted and was observed at one week of age in the left forelimb and progressed until all 4 limbs were affected by 5 weeks of age. On radiographs of both forelimbs, the distal interphalangeal joints were subluxated with irregularity and lucency of subchondral bone. On radiographs of the distal hindlimbs, there was a subluxation of both distal interphalangeal joints and loss of the proximal interphalangeal joint spaces with fusion of the proximal and middle phalanges. The foal was euthanised. On necropsy, there were focal areas of erosion of articular cartilage in the distal interphalangeal joint of both forelimbs. The proximal and middle phalanges of both hindlimbs were fused. Histopathological examination of the distal interphalangeal joint of the right foreleg showed loss of articular cartilage and degenerative changes in the exposed subchondral bone.

Publication Type: Journal Article
Murdoch Affiliation: School of Veterinary Studies
Publisher: Wiley-Blackwell
URI: http://researchrepository.murdoch.edu.au/id/eprint/20187
Item Control Page Item Control Page