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Inomed Stockert Neuro N50. A versatile
RF lesion generator and stimulator for
countless applications and many uses


 

Multigen RF lesion generator .

22-MARCH-2023  MAHMOUD UMAR AL-BAN  42 YEARS  EXTRUDED DISC L4-5 WITH RIGHT FORAMINAL OCCLUSION.

 

Anamnesis

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The patient came to the clinic 12-January-2023 complaining of LBP with right sciatica for 3 months. The patient in agonizing pain, limping with exaggerated scoliotic stance. SLRS at that time was 40 degrees with pain in the right with weak dorsiflexion right foot 4/5. The patient was sent for investigations and prescribed to him pain-killers. MRI lumbar done 12-January-2023 showing extruded disc L4-5 with right foraminal occlusion and he told me that he improved for what he was advised to continue in medications. The patient came than 20-March-2023 telling that his condition deteriorated with more painful right sciatica.

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On examination, the patient is in agonizing pain, limping with exaggerated scoliotic stance. SLRS was 20 degrees right side with pain and 70 degrees left side without pain. There is weak dorsiflexion right foot -4/5.

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The patient was sent for investigations and MRI lumbar spine done the same day showing the same extrusion of L4-5 with right foraminal occlusion. Dynamic studies ruled out overmobility. Lab investigations showed ESR 10 mm/h. CRP was 15 mg/dL.

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Foraminotomy right L5 root with right sided removal of the extrusion lateral to the axilla and right sided cleaning L4-5 disc space. Subaxillary inspection for remnants was negative. Using MultiGen, bipolar stimulation of the right L5 root was responding to 1.2 Volts. A bipolar pulsed mode RF with 42 Celsius, 240 sec, 2 Hz and 20 msec duration to the right L5 root  was achieved using 2 bended catheters 10 mm exposed length. Further bipolar stimulation of the right L5 root was responding to 1.2 Volts. The patient was put in Reverse Trendelenburg position with Valsalva maneuver and hyperventilation. No CSF leak. Routine closure of the wound. The power of the right foot normalized. He was sent to the ward.


MultiGen

FOLLOW UP

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Too early now.

Comments  

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The recurrence rate here is around 7%, because the disc space is not shallow.

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This is the 256th case using the BPRF mode with MultiGen. This procedure regained routine acceptance.  It became a usual part of the spine and peripheral nerves surgery. Click here for reference.

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It still unclear to evaluate the differences of pre and post application motor responses. The only sure thing that it tells that the electrodes did not migrate during the procedure and the nerve is functioning properly. The nerve did not change to motor stimulation after performed BPRF, because it was in good condition.

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With accumulation of data, it became clear that the irritated nerve with aberrant currents running in the C fibers up, not only causing no change or elevation of the required voltage to achieve motor response, but they could cause the preoperative weakness. Ablation of such currents results in facilitation of the motor response and improvement of function with disappearance of pain.

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It is unclear why the roots have several motor response with different patients, despite the fact that the neurological status was the same and the anesthesia protocol also the same.

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It could be that the nerve is recovering minute by minute after decompression and this can explain why the motor conductivity is improving after the BPRF application, which require 5 minute session in most cases.

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After the 172d case, the elevation of motor stimulation above 5 V was abandoned to avoid delayed dural tear with subsequent CSF leak, which take place at the contact at the lower electrode shaft with the dura below or above the level of the axilla.

Skyra MRI with all clinical applications in the run since 28-Novemeber-2013.


Inomed Riechert-Mundinger System, with three point fixation is the most accurate system in the market. The microdrive and its sensor gives feed back about the localization.


Inomed MER system

Leica HM500

Leica HM500
The World's first and the only Head mounted Microscope.
Freedom combined with Outstanding Vision, but very bad video recording and documentation.

TRUMPF TruSystem 7500

After long years TRUMPF TruSystem 7500 is running with in the neurosuite at Shmaisani hospital starting from 23-March-2014

LooksCam II in the run.
LooksCam II Xenosys in the run  starting from  14-March-2021 with SheerVision TTL x4 magnification. 

 
Cios-Spin flat panel in the run.

 

 


Notice: Not all operative activities can be recorded due to lack of time.
Notice: Head injuries and very urgent surgeries are also escaped from the plan .


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