Horse will interfere. The hocks rotate outward. Horse moves stiffly due to inflexible hock action. Hindquarters are weak and the horse tires easily. The hocks are pointed inward - feet pointed outward.
Places strain on inside of the leg and causes bone spavin.
Hind leg moves upward and outward - not straight ahead. This is weak conformation. This is a serious fault. This usually indicates a fracture or other injury and will result in almost immediate lameness when the horse is put into training. This is a soft swelling on the upper back portion of the hock at the back of the hind leg.