my mate was due a hip replacement and a hip resurfacing.
he phoned up an older friend who had had a hip replacement, who said he could come round and talk about recovery, etc
on the way over he came to a 50 mph section on the M4 and, as it chicaned into a lane, he dropped his motorbike on some diesel on the road - when he came to he found that he had broke his collarbone.
he had the collarbone plated and then had to recover strength quickly so he could get around on crutches when his hips were done a few months later.
and to make it worse, with all his problems, he had to call his wife to help with toiletry affairs.