"After monitoring his track performances and carrying out tests, scientists took the view that Pistorius enjoyed considerable advantages over athletes without prosthetic limbs. On the strength of these findings, on 14 January 2008 the IAAF ruled him ineligible for competitions conducted under its rules, including the 2008 Summer Olympics. This decision was reversed by the Court of Arbitration for Sport on 16 May 2008, the Court ruling overall there was no evidence that Pistorius had any net advantage over able-bodied athletes."
Investigations were made as was the determination that he was eligible to compete.
Any other athlete 'enjoying' use of prosthetics ought to be similarly investigated and if similar conclusions are reached I see no good reason why they cannot be allowed to compete.
Naturally, anyone using an arm designed by Skynet Corps like the ones on the T-800 ought to be banned from the 'chucking' events......