Page 255 - Adams and Stashak's Lameness in Horses, 7th Edition

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Figure 3.45. (Continued) Dorsoproximal to palmarodistal 9. Solar canal, the width and distinctness of which are variable in
oblique (D60Pr‐PaDiO) projection of the distal phalanx (foot). The normal distal phalanges.
X‐ray beam for this projection is centered at the coronet, and the 10. Flexor surface of the distal phalanx, where the deep digital
exposure is half that necessary for visualizing the navicular bone. flexor tendon attaches.
(a) Navicular bone (distal sesamoidean bone), (b) middle phalanx, 11. Vascular canals in the region of the solar canal.
and (c) distal phalanx. 12. Peripheral vascular canals. The vascular canals may be of
1. Proximal part of the medial and lateral palmar processes. variable width in normal distal phalanges. The peripheral solar
2. Distal part of the medial and lateral palmar processes. border of the distal phalanx should be relatively smooth and
3. Palmar articular margin of the distal phalanx. symmetrical, although a slight irregular peripheral border may
4. Medial and lateral parietal sulci on the distal phalanx. be considered normal in older animals.
5. Distal articular surface of the middle phalanx. 13. Distal solar margin of the distal phalanx. The normal distal
6. Proximal dorsal margin of the articular surface of the distal border of the distal phalanx may be convex or have some
phalanx. degree of concavity. A mid‐distal notch, when present, is the
7. Borders of the medial and lateral solar grooves. crena marginis solaris.
8. Medial and lateral solar foramina.

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