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Axis Neuromonitoring Axis Neuromonitoring

There are many things we find important to the world of healthcare and neuromonitoring. Here we post helpful information for our patients, hospitals, and surgeons.

ACDF MEP & Recovery in Non-Myelopathic Patient

By Admin on June 01, 2023

For one 46 year old male patient, the potential consequences of undergoing the prescribed surgical intervention meant risking paralysis. The patient was living with severe arm and neck pain as a result of both a central and foraminal stenosis. In addition to the patient’s radiculopathy, he was also experiencing spondylosis. While the patient’s condition was non-myelopathic, progression of his condition risked a future development of herniated disks and bone spurs.




Mapping Out Peroneal Nerve Branches

By Admin on June 01, 2023

A 69 year old female presented with right peroneal neuropathy and right lower leg atrophy. After completing physical therapy, she noticed pronounced aching in her leg and her gait became abnormal resulting in a limp known as “foot drop” and lost feeling in her lower right leg. 

Microvascular Decompression for Hemifacial Spasm: Diagnosing Relief

By Admin on June 01, 2023

So how can our patient find relief? By separating the blood vessel from the nerve and adding some cushioning to keep them separated permanently, a surgical team can perform a microvascular decompression, as was the plan for this patient. The abnormal muscle response that causes the twitch can be detected by intraoperative neuromonitoring (IONM), helping the surgical team identify the blood vessel and nerve responsible and when the abnormal response is resolved.

Identifying Perfusion Changes With SSEP in Aneurysm Clipping Surgery

By Admin on June 01, 2023

Without SSEP monitoring, the surgeon may not have identified the plaque. The result could have caused a stroke by blocking blood flow in the brain, but thankfully was avoided.

MEP and SSEP Signal Loss Caused by Retractor Placement in OLIF Spine Surgery

By Admin on June 01, 2023

In order for the surgeon to reach the spine during an OLIF procedure, they have to create a surgical corridor between the psoas muscle and the peritoneum. This corridor is then held open using retractors so that the surgeon can access the affected parts of the patient’s spine and alleviate their symptoms. However, if incorrectly placed, the retractors used to hold the corridor open can create a risk of nerve compression or damage during the procedure.

MEP Changes Due to Cage Placement in ACDF Procedure

By Admin on June 01, 2023

Motor evoked potentials (MEP) are important for monitoring the descending or motor pathway and without them and neuromonitoring in general being utilized for this procedure, the patient may have suffered motor deficits as a direct result of the placement of the cage.

SSEP Change During Extreme Lateral Interbody Fusion

By Admin on June 01, 2023

To ensure the safety and efficacy of the procedure, various monitoring techniques, such as somatosensory evoked potentials (SSEPs), motor evoked potentials (MEPs), electromyography (EMG), train-of-four (TOF/TO4), and nerve conduction velocity testing, were employed during the surgery. 

Inpatient spinal fusion costs in all 50 states

By Admin on July 21, 2022

Alaska is the most expensive state to undergo spinal fusion surgery and Iowa is the least expensive, according to...

Thoracolumbar Surgical-tEMG

December 08, 2021

Walking is something many of us take for granted. Many of us do without a second thought, and walking gives us a level of freedom and accessibility that many other people don’t have. However, as patients get older, their mobility can be challenged by the obstacles of aging. When combined with all of the other hurdles patients face throughout their lives, the possibility of one medical victory can be enough to give them hope.

Positioning Anterior Cervical Upper MEP

November 20, 2021

People carry a lot of stress in their neck, upper back, and shoulders. This is because this body area undergoes significant use, from hunching over a computer screen to manual labor and working with your hands. This amount of use causes additional wear and tear on the body, which adds stress to the body's muscles, bones, and nerves. In addition, underlying structural problems exacerbate these day-to-day events and stressors.

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