A low-motion joint located entirely within the hoof capsule, formed by the articulation of the middle phalanx (P2), distal phalanx (P3 or coffin bone), and navicular bone. Disorders of the coffin joint and associated structures include osteoarthritis, navicular disease, collateral ligament injury, and distal phalanx pathology.
Coffin
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Coffin Joint Osteochondrosis Dissecans (OCD) & Osteochondral Fragments
Cartilage defects and fragment formation within the distal interphalangeal joint leading to inflammation and pain. Arthroscopic treatment focuses on debridement and fragment removal.
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Coffin Joint Subchondral Bone Cysts (SBCs)
Subchondral lesions that may communicate with the joint surface, contributing to chronic lameness. Treatment includes arthroscopic debridement and adjunct stabilization techniques.
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Septic Arthritis of the Coffin Joint
Infection within the distal interphalangeal joint that can rapidly compromise joint integrity. Requires aggressive surgical lavage and antimicrobial therapy.
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Coffin Joint Foreign Bodies
Penetrating injuries can introduce foreign material into the joint, resulting in inflammation or infection. Arthroscopic removal is typically required.