Figure 2. Photograph of a horse with hindlimb digital flexor tendon sheath effusion. Note the ‘notch’ created by the constrictive plantar annular ligament (green arrow), resulting in effusion bulging proximal and distal to this level.

Diagnosis of digital flexor tendon sheath conditions in the horse

The digital flexor tendon sheath (DFTS) is a synovial cavity occupying the distal third of the palmar metacarpus/plantar metatarsus and the palmar/plantar pastern, to the level of the middle phalanx....