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Frequently Asked Questions
Here are some answers to the practical questions we are asked most often:
Pompe et IRM
Pump and MRI :


Manufacturer allows MRI scans with implanted pumps

As a precaution, however, we recommend emptying the pump before MRI and filling it with physiological solution.

Spinal cord or brain stimulators and MRI :


Due to the large number of models and the various generations, you must first contact the surgeon who implanted the device.

As a general rule, we recommend a complete zeroing of the device (zero amplitudes and battery shutdown) before MRI.

Stimulateur médullaire et IRM
Spondylodèse cervicale et IRM
Spondylodesis and MRI :


All the usual materials (titanium, peek, carbon, ...) allow an MRI to be performed

Depending on the materials, the artifacts will make the image unreadable near the implants. These artefacts are non-existent for peek and carbon, acceptable for titanium, but catastrophic for steel.

Aperius and MRI :


The Aperius being made of titanium, an MRI is perfectly possible and the artefacts hardly interfere with the interpretation of the images.

Aperius et IRM
Canal lombaire étroit et ergométrie
Narrow channel and ergometry :


The lumbar canal does not allow ergometry on a treadmill because neurogenic claudication occurs too quickly. On a bike, on the other hand, it is possible to increase the power without impacting the narrow canal because the position opens the foramens

Questions for future anesthesia
Lumbar operations preventing epidural anesthesia:

  • Narrow lumbar canal

  • Operation for epidural lipomatosis

  • Median or paramedian disc herniation (classic approach)

  • PLIF

  • Lumbopperitoneal shunt

  • Morphine pump (intrathecal administration)

Lumbar operations allowing epidural anesthesia:

  • Interspinous dynamic stabilization (Diam, Aperius, Backjack, ...)

  • Transmuscular isthmotomy

  • Spondylodesis / instrumentation without decompression

  • Vertebroplasty

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