It was reported that the patient hit their head on the side of table when trying to climb into a chair.
As a result of the impact the magnet was dislodged from the magnet pock and was sitting over the receiver/stimulator.
Due to the improper location of the magnet no telemetry was obtained when checked at the clinic.
An integrity test was conducted and showed that it was possible to find a very small area over the receiver coil where the implant would function.
This position showed that the magnet has dislodged by approximately 2cm.
Whilst holding the coil in the correct position, all tests of the receiver stimulator integrity gave normal results, including telemetry.
The patient was re-implanted.
A tear in the silicone carrier around the magnet was observed.
There was a kink in wires of the antenna coil.
Multiple kinks and bends along the electrode array lead consistent with explantation were observed.
The ball electrode lead was severed close to the stimulator body.
When the magnet was placed at the original position, the device passed all the tests stimulator body.
When the magnet was placed at the original position, the device passed all the tests conducted to confirm proper operation of the stimulator.
The device failed all the tests conducted when the magnet was positioned halfway on top of the receiver/stimulator.
The device was explanted because the magnet was dislodged due to an external impact.
Operation of the stimulator was confirmed when the magnet was returned to its original position.
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