ABSTRACT
The equine distal forelimb has a highly specialised anatomical design, which allows for a high degree of locomotory efficiency and speed. A superficial fascial layer identified over the metacarpus, fetlock and proximal digit, is continuous proximally with the superficial fascia of the carpus and antebrachium. The superficial fascia thins and becomes difficult to separate as a distinct layer by the level of the proximal interphalangeal joint and this may reflect the stability required from the the common digital extensor tendon (CDET) and the extensor branches of the IL in order to support the digit and manage impact related force and strain. Compliant tendons of the superficial and deep digital flexor muscles, as well as the collagenous interosseous muscle, allow for the passive storage and return of elastic energy throughout locomotion. Proximally, the ergot tissue is continuous with fascia surrounding the flexor tendons, and distally it is continuous with the superficial fascia of the digit.
