Functional Anatomy of the Equine Interphalangeal Joints

Abstract

During locomotion, the interphalangeal joints undergo a variety of combined movements in the sagittal, frontal, and transverse planes, especially on uneven surfaces or during turns. Each movement induces specific stresses on the articular surfaces and ligaments. Asymmetric elevation of one quarter induces collateromotion and sliding on the same side and rotation on the opposite direction. With this knowledge, the biomechanical causes of every injury of the interphalangeal joint structures can be determined, and a rational corrective shoeing procedure can be established.