Equine Fetlock Arthrodesis

christie bel lab resized

Catastrophic injuries of the metacarpophalengeal (Fetlock) joint causing disruption of the suspensory apparatus are the most common fatal injuries in thoroughbred racehorses. Fetlock arthrodesis is the most viable treatment option that involves surgical stabilization of the fetlock joint with orthopedic implant. It is designed to mitigate horses’ suffering from these types of injuries as well as end stage degenerative disease of the articulation. Two commonly used fixation techniques are dynamic compression plate and locking compression plate. While the surgical procedure is well established, little data is available on the biomechanical behavior of the bone-device constructs. The mechanical behavior is essential to predict the clinical performance of the implant. The aim of this study is to compare mechanical behavior of two techniques for fetlock arthrodesis: the dynamic compression plate (DCP) with stainless steel wire tension band and thelocking compression plate (LCP) with stainless steel wire tension band.equine arthrodesis