Page 576 - Adams and Stashak's Lameness in Horses, 7th Edition

542 Chapter 4

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A B

Figure 4.121. (A) Flexed lateral radiograph of the fetlock demonstrating a small fragment off the dorsoproximal aspect of P1 (arrow).
(B) DLPMO radiograph of a horse with a rounded fragment off of the dorsomedial aspect of proximal P1 (arrow).

Figure 4.123. Oblique radiograph of the fetlock in a horse with a
Figure 4.122. DMPLO radiograph demonstrating a rounded palmar eminence fracture of proximal P1 (arrows).
fragment off of the plantaromedial aspect of proximal P1 (arrow).
permits removal of multiple fragments, visualization of
Treatment the entire joint, and surgical treatment of lesions that
may not have been identified on radiographs
Arthroscopic removal of small chip fractures in the (Figure 4.124). Lesions commonly seen in association
dorsal or palmar/plantar aspect of the joint is the treat- with P1 chip fracture include proliferative synovitis of
ment of choice for the greatest chance of a quick return the dorsal metacarpal synovial pad (32% of which had
to full performance. 24,49,56,108 Arthroscopic evaluation chip fractures) and cartilage erosion of the metacarpal