The surgical intervention for pain management that involves cutting a nerve root to relieve pain is called?

Appeared in: NORCET 3 - 2022 (Shift-1)

Explanation

Rhizotomy is a neurosurgical procedure that involves the selective cutting or destruction of a nerve root, typically a dorsal (sensory) root, to relieve intractable pain or spasticity.
The term originates from Greek roots: 'rhiza' meaning root and 'tome' meaning cut, directly matching the question's description of 'cutting a nerve root'.
It works by interrupting the pathway of pain signals from a specific area of the body before they can travel up the spinal cord to the brain.

Option B: This method uses extreme cold to freeze and temporarily disable a nerve, rather than surgically cutting it.
Option C: This procedure uses heat generated by radio waves to destroy nerve tissue (ablation), not a surgical incision to cut the nerve root.
Option D: This procedure involves cutting nerve tracts within the spinal cord itself (specifically the spinothalamic tract), not the nerve root as it exits the spine.

Visual 1: Anatomical Diagram - A diagram showing a cross-section of the spinal cord, highlighting the dorsal nerve root being severed in a rhizotomy procedure, contrasted with the location of a cordotomy incision within the spinal cord itself.

Clinical Relevance

Nursing practice connection: Knowing Surgical Interventions for Pain Management helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Post-rhizotomy, nurses must meticulously monitor for changes in sensation, motor function, and bladder/bowel control, as these can indicate complications.
Patient education is critical, focusing on new sensory deficits. Patients may not feel pain, heat, or cold in the affected area, increasing the risk for injury.
What if? If a patient develops a sudden severe headache and neck stiffness post-procedure, the nurse must suspect meningeal irritation or a Cerebrospinal Fluid (CSF) leak and notify the surgeon immediately, as this is a medical emergency.

How to Approach the Question

First, analyze the keywords in the question: 'cutting' and 'nerve root'. This points to a specific surgical action on a specific anatomical structure.
Second, break down the medical terms in the options if possible. 'Rhizo-' refers to root and '-tomy' refers to cutting. This provides a strong clue.
Third, differentiate between 'cutting' (tomy) and other methods like 'freezing' (cryo) or 'burning' (ablation).
Finally, distinguish between the 'nerve root' (rhizotomy) and the 'spinal cord' itself (cordotomy) to select the most precise answer.

Concept Tested & Keywords

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