Ellegro Equine Limb MRI

Examples of Typical Equine Limb Case Studies of the Foot, Fetlock and Carpus.


0.7mm 3D GE T1 sequence used to better visualize bony margins including the subchondral plate and the signal of the associated articular cartilage.

This pony has unremarkable articular cartilage signal within the coffin joint and proximal P2, but a moderate amount of decreased articular cartilage signal is seen in distal P1 at the pastern joint (arrows).

This was a client owned animal, but similar changes are seen within the articular cartilage in other joints that have been dissected where articular cartilage degeneration was confirmed.

Typical Equine Limb Case Study of Foot


5yr. old Thoroughbred horse with a severe left front lameness localized to the fetlock.

SE T1W sagittal image shows a cyst-like erosion in proximal P1 (large arrow) and decreased T1 signal within the surrounding intramedullary bone, as well as dorsal distal MC3 (small arrows) that corresponded with increased STIR signal typical of bone edema/inflammation. Additional subchondral erosions were visible on the scan.

The findings were consistent with an active, erosive arthritis.

Typical Equine Limb Case Study of Fetlock


4yr. old Arabian mare. History of middle carpal joint effusion. Lameness improves with intracarpal analgesia. Requests Carpus MRI, which revealed significant increased STIR signal within proximal MC3 consistent with a stress response/stress fracture injury.

The origin of the proximal suspensory ligament at this level appeared unremarkable, as well as the bones and soft tissues of the middle carpal joint. STIR dorsal image.

Typical Equine Limb Case Study of Carpus