CAT - What does a positive distal interphalangeal joint block mean?

Lameness resulting from pain in the foot is extremely common in clinical practice and making a specific diagnosis as to the exact site(s) of pain remains a challenge. It has been recommended that horses that respond to a palmar digital or palmar (abaxial sesamoid) block should subsequently have further regional analgesic techniques performed, including intra-articular analgesia of the DIPJ, to further characterise the site of pain [1]. The purpose of this CAT is to review the evidence of which structures are desensitised by that block ...