Pre-purchase exams are a fact-finding mission. They help enable the buyer to decide whether their prospective purchase is suitable for the career they have in mind, and what type of supportive care may be needed to allow the horse to perform their best.
Accurate lameness assessment involves conformation assessment, movement evaluations both on the ground and under saddle and flexion tests and nerve blocking as required. Secondary diagnostics are often recommended such as radiography and ultrasonography. Some cases may require referral for CT, MRI or venography.
Most performance issues under saddle can be attributed to either lameness or oral disease, don't underestimate the importance of veterinary dentistry for your horse! All dentistry patients receive a detailed, sedated oral exam and appropriate floating as required.