Well I think by looking at his plaster cast he would have need at least one extra seat to be able to sit comfortably, or possbily to be allowed to have sat on row 1 (which he was denied). he was also denied an extra seat as he hadn't paid for it. Whilst I accept he could have possibly paid for an extra as I assume the cost would have been covered by his insurance, I think there is an obvious lack of care on th part of all Ryanair staff.
Sorry I don't have a link as I am not that clever when it comes to computers, but it is in today's Mail Page 13 with a pic.
PS. Ah thanks for the link Brakeswell!!