Association between findings on palmarodorsal radiographic images and detection of a fracture in the proximal sesamoid bones of forelimbs obtained from cadavers of racing Thoroughbreds

Lucy A. Anthenill, Susan M Stover, Ian Gardner, Ashley E Hill, Christina M. Lee, Mark L Anderson, Bradd C. Barr, Deryck H. Read, Bill J. Johnson, Leslie Woods, Barbara M. Daft, Hailu Kinde, Janet D. Moore, Cynthia A. Farman, Jenee S. Odani, Patricia Pesavento, Francisco A Uzal, James Case, Alex Ardans

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Objective - To determine the distribution for limbs and bones in horses with fractures of the proximal sesamoid bones and relationships with findings on palmarodorsal radiographic images. Sample population - Proximal sesamoid bones obtained from both forelimbs of cadavers of 328 racing Thoroughbreds. ppProcedure - Osteophytes; large vascular channels; and fracture location, orientation, configuration, and margin distinctness were categorized by use of high-detail contact palmarodorsal radiographs. Distributions of findings were determined. Relationships between radiographic findings and fracture characteristics were examined by use of χ2 and logistic regression techniques. Results - Fractures were detected in 136 (41.5%) horses. Biaxial fractures were evident in 109 (80%) horses with a fracture. Osteophytes and large vascular channels were evident in 266 (81%) and 325 (99%) horses, respectively. Medial bones typically had complete transverse or split transverse simple fractures, indistinct fracture margins, > 1 vascular channel that was > 1 mm in width, and osteophytes in abaxial wing and basilar middle or basilar abaxial locations. Lateral bones typically had an oblique fracture and distinct fracture margins. Odds of proximal sesamoid bone fracture were approximately 2 to 5 times higher in bones without radiographic evidence of osteophytes or large vascular channels, respectively. Conclusions and clinical relevance - Biaxial fractures of proximal sesamoid bones were common in cadavers of racing Thoroughbreds. Differences between medial and lateral bones for characteristics associated with fracture may relate to differences in fracture pathogeneses for these bones. Osteophytes and vascular channels were common findings; however, fractures were less likely to occur in bones with these features.

Original languageEnglish (US)
Pages (from-to)858-868
Number of pages11
JournalAmerican Journal of Veterinary Research
Volume67
Issue number5
DOIs
StatePublished - May 2006

ASJC Scopus subject areas

  • veterinary(all)

Fingerprint Dive into the research topics of 'Association between findings on palmarodorsal radiographic images and detection of a fracture in the proximal sesamoid bones of forelimbs obtained from cadavers of racing Thoroughbreds'. Together they form a unique fingerprint.

Cite this