Does horse health care in Rhode Island include a lameness or performance evaluation? Evaluations consist of several stages. The horse is observed at rest, in motion and often under saddle. Where appropriate, nerve or joint blocks, using local anesthetic, are performed to localize the problem within a leg or legs. Once localized, the affected area is imaged in order to characterize the problem, identify injured structures and quantify the degree of injury. Radiography and ultrasonography are often used together in order to obtain the greatest amount of information possible.