The bones will take at least a fortnight to begin to nit well and this will be helped by minimal disturbance during this time, as the are multiple fragments the better they nit the less the long term callus and so the better the outcome. There is a differnece between a kocked up toe and a shattered one. If there are " many lurchers every year that break toes that the owners never know about ,puting it down to a strain of one muscle or another" they are poor stock men. Two weeks of rest, and a cage ensures this as far as possible, isn't such a big investment if you expect the dog to make the b