Prevalence of Radiographic Abnormalities of the Proximal Interphalangeal Joint of Young Thoroughbreds and Associations With Early Racing Performance

Santschi, Elizabeth M.; Prichard, Michael A.; Williams, Jarred; Morehead, James P.

doi:10.1016/j.jevs.2015.01.002

Cited by 4 publications

(14 citation statements)

References 9 publications

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“…Radiographic abnormalities of the pastern have been reported in 1.3% of thoroughbred weanlings and yearlings . In that same report, horses with fragments in the PIP joint (n = 13) tended to be less likely to start a race as 2‐year‐olds and 3‐year‐olds, but the difference was not statistically significant because of the small sample size and lack of data on long‐term (career) performance .…”

Section: Discussionmentioning

confidence: 94%

“…5 In that same report, horses with fragments in the PIP joint (n = 13) tended to be less likely to start a race as 2-year-olds and 3-year-olds, but the difference was not statistically significant because of the small sample size and lack of data on long-term (career) performance. 5 In the larger population of horses presented in our study, 37% of the affected horses and 39% of the matched controls started a race during their 2-year-old year (P = .70). Horses that underwent surgery as yearlings, therefore, seemed able to enter race training at nearly the same time as their siblings.…”

Section: Discussionmentioning

confidence: 94%

“…The lesion was most distinct on the dorsolateralpalmaro/plantaromedial oblique view in 29 of 39 cases. The mean fragment size was 9.9 mm (median, 9.0; range, [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. With arthroscopic findings as the reference, the parent bone of the fragment was readily determined from radiographic examination in 24 of 39 cases (Figure 2).…”

Section: Demographics and Preoperative Findingsmentioning

confidence: 99%

“…These fragments were associated with a decreased but not statistically significant difference in the likelihood of starting a race as a 2‐year‐old. Information on treatment, longevity, and quality of performance was not presented …”

Section: Introductionmentioning

confidence: 99%

“…Information on treatment, longevity, and quality of performance was not presented. 5 The objective of this study was to describe the presence of articular fragments in the dorsal PIP joint within the origin of the collateral ligament of the distal sesamoid bone and to report the athletic performance of horses after arthroscopic removal of these fragments. The quality of recovery was assessed by comparing the race career of affected thoroughbred horses to that of their siblings.…”

Section: Introductionmentioning

confidence: 99%

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Osteochondral fragments of the pastern joint at the origin of the collateral ligament of the distal sesamoid bone: performance after arthroscopic removal (2000–2015)

et al. 2019

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Objective To describe the presence of fragments in the dorsal proximal interphalangeal (PIP) joint and to report flat racing performance after surgical treatment. Study design Retrospective study. Sample population Thirty‐nine affected thoroughbred flat racehorses and 169 age‐ and sex‐matched maternal siblings. Methods Medical records from 2000 to 2015 were reviewed for thoroughbred horses that underwent arthroscopic removal of osteochondral fragments in the dorsal aspect of the PIP joint. The horses’ 2‐year‐old year, 3‐year‐old year, and career athletic performances were compared with their matched siblings. Results Thirty‐nine thoroughbred horses were included, varying in age from 4 months to 4 years, with osteochondral fragments in 42 PIP joints. Hind limbs (92%) were more commonly affected than forelimbs (8%). Fragments were located within the origin of the collateral ligament of the distal sesamoid (navicular) bone. After surgery, the likelihood of starting a race did not differ between treated horses (27/39 [69%]) and maternal siblings (129/169 [76%], P = .15). Race earnings did not differ between treated horses and their siblings during their 2‐year‐old year (P = .66), 3‐year‐old year (P = .43), or career (P = .60). Conclusion Removing osteochondral fragments from the origin of the collateral ligament of the distal sesamoid bone did not impair the ability to race or earning potential for affected thoroughbred racehorses compared with their maternal siblings. Clinical significance Fragments from the dorsal aspect of the PIP joint in racehorses can be removed arthroscopically resulting in a good clinical outcome and future flat racing performance comparable to matched controls.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 94%