• 1. Auer JA, Watkins JP, White NA, et al. Slab fractures of the fourth and intermediate carpal bones in five horses. J Am Vet Med Assoc 1986; 188: 595601.

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  • 2. Auer JA. Diseases of the carpus. Vet Clin North Am Large Anim Pract 1980; 2: 8199.

  • 3. Butler JA, Colles CM, Dyson SJ, et al. Clinical radiology of the horse. 3rd ed. Ames, Iowa: Wiley-Blackwell, 2008.

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What Is Your Diagnosis?

Jarred M. Williams DVM, MS, DACVS1, Elizabeth M. Santschi DVM, DACVS2, Ilva N. M. Grundmann Med Vet3, and Eric M. Green DVM, DACVR4
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  • 1 Department of Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210.
  • | 2 Department of Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210.
  • | 3 Department of Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210.
  • | 4 Department of Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210.
History

A 5-year-old 520-kg (1,144-lb) Thoroughbred racehorse gelding was evaluated because of a history of forelimb lameness and swelling in the carpal area. On physical examination, all vital sign values were within reference ranges; however, there was a moderate amount of effusion within the right antebrachiocarpal joint. Lameness examination revealed a grade 3 of 5 right forelimb lameness; upper limb flexion exacerbated the lameness. Standard and nonstandard radiographs of the right carpus were obtained (Figure 1; only dorsomedial-palmarolateral oblique and flexed skyline views are shown).

Dorsal 70° medial-palmarolateral oblique (A; 20° angle from lateral), dorsal 45°

Contributor Notes

Address correspondence to Dr. Williams (williams.3206@osu.edu).