Granting Wishes: Once upon a time, when a child had short legs (or one leg shorter than the other), the only way to treat it was a very Frankensteinian surgery that involved metal devices, bone breakage, and stretching. Today, in Britain, bones can be lengthened electromagnetically:

The 'revolutionary' bionic prosthesis, which was six years in the making, enables the extension to take place at an out-patient appointment.

During the procedure, which takes about 15 minutes, the leg is placed through a special electromagnetic device.

The device is activated and the implant is extended by a specified amount.

The procedure takes about 15 minutes and the patient experiences no pain or discomfort and is free to go home immediately after the treatment.

Amazing.