Merck Manual

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Incomplete Longitudinal Fractures of the Plantar Aspect of the Third Metatarsal Bone in Horses

By

Jane C. Boswell

, MA, VetMB, CertVA, CertES (Orth), DECVS, MRCVS

Reviewed/Revised Sep 2015 | Modified Oct 2022

Stress reaction and incomplete longitudinal fractures of the plantar aspect of the third metatarsal bone may occur due to stress-related bone injury at the origin of the suspensory ligament. These are usually associated with increased uptake of radionuclide on bone scintigraphy and are clearly demonstrable on MRI.

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