TABLE 1:

System Y (modified from Young and Taylor2)

Score 1Excellent: perfect, no ataxia; stands at first attempt as if rising from rest
Score 2Good: stands after first or second attempt, some weakness/ataxia and may knuckle slightly after standing but not in danger of falling over
Score 3Fair: stands after several attempts, crashes/ricochets around recovery box in excited/delirious manner often giving moments for concerns; moderate weakness/ataxia and may knuckle on fetlocks after standing; looks very wobbly and may teeter occasionally, but if falls, gets up again almost immediately; may sustain minor cuts/grazes but not requiring serious treatment intervention (not requiring suturing or further general anaesthesia to treat)
Score 4Marginal: multiple attempts to stand, crashes/ricochets around recovery box in excited, almost manic manner giving rise to concern; very ataxic when finally standing and commonly falls down again; sustains injury requiring intervention, and which may compromise horse’s future/use
Score 5Poor/unsuccessful: multiple attempts to stand, crashes/ricochets around recovery box in excited, manic manner perhaps until exhausted; may have multiple frantic attempts to stand between exhausted episodes; fails to stand because of postanaesthetic myopathy/neuropathy or through sustaining major/terminal injury (eg, long bone fracture, neck or skull-base fracture, dislocation)