The hind limbs of six dogs were reimplanted immediately after amputation. Another nine were conserved by extracorporeal circulation for 24 h, and then examined histologically. A further six were conserved by the same method and then reimplanted after 24 h. Conservation by extracorporeal circulation maintained the limbs in good condition. Less than 5% of the muscle fibres showed abnormality when examined, and the lesions were reversible.
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