The scientists collaborated with an orthotics research center in Canada to develop a customized splint and connecting base to support the horse’s leg. | Photo: Courtesy Dr. Alvaro G. Bonilla

Early and accurate diagnosis of equine knee disorders can lead to better treatment and recovery, but sometimes radiography and ultrasound aren’t enough. Advanced imaging such as computed tomography (CT) and MRI is technically difficult to acquire for equine knees. Explorative needle arthroscopy gives specific details about issues involving cartilage, bone, and ligaments in the joints—but because of the position needed for the procedure and the risks involved, knee arthroscopy in horses has always required general anesthesia—until now.

With a custom-made splint holding the bent knee in place and partially supporting the horse’s weight and needle-sized arthroscope, equine surgeons can now perform needle arthroscopy in standing, sedated horses, said Alvaro G. Bonilla, DVM, MS, Dipl. ACVS, professor in equine surgery at the veterinary university hospital center of the University of Montreal, in Quebec, Canada.

“Our standing procedure offers a good alternative to diagnostic arthroscopy performed under general anesthesia, with lower costs and fewer associated risks in qualifying patients,” Bonilla said