The elderly woman hit on the head by a bicycle wheel thrown from a block of flats will be operated on today, said her son. "The doctors told us that if she doesn't go for surgery, she might not be able to move again, or that she will take a very long time to recover," Mr Jusman Abdul Aziz, 35, an executive at a freight forwarding company, told The Straits Times. Doctors said his mother, Madam Mahani Abdullah, 67, needed surgery to help her regain the use of her limbs, he added. Yesterday, a sedated Madam Mahani drifted in and out of consciousness in a high-dependency ward at the Singapore General Hospital, said Mr Jusman. He said: "There might be complications in surgery because of her age, but it is, at least, a chance for her to move again."