Can a wounded person perform Tayammum ?

Question 80:  There was a question presented to the program of “Noor ‘Alaa Al-Darb” about the legal ruling on a wounded person who fears that the wound might not be healed if washed. Should he wipe over the splint or perform Tayammum (dry ablution with clean earth)? The answer was that he should wipe over the splint and also perform Tayammum so as to avoid an area of scholarly difference. Are we obliged to follow these different opinions arising from the existence of multiple proofs on the same issue, or follow a different understanding that should have given instead an answer closer to the spirit of Sharee‘ah (Islaamic law)?

Answer: All praise be to Allaah Alone, and peace and blessings be upon His Messenger, and his family and Companions!

It is permissible to wipe over them in Wudoo’ (ablution) instead of washing the feet if they are put on while in a state of Tahaarah (ritual purity), unless the holes are bigger than is ordinarily acceptable, or the socks are so transparent that the feet are almost bare and reveal the color of skin beneath them… read more here.