Malfunctioning medical implants implicated in thousands of deaths worldwide

A global investigation has found malfunctioning medical implants have been responsible for tens of thousands of deaths around the world. Experts are demanding greater testing of medical devices before they're approved for use in Australia, as Aaron and Thomas report.

Chantelle Karo has Hereditary Spastic Paraplegia and a small medical pump implanted near her spine did not work as it should. Source: SBS