A complication of Lumbar laminectomy is?

Appeared in: NIMHANS Nursing Officer - 2019

Explanation

A lumbar laminectomy involves surgery near the spinal cord and nerve roots, creating a risk of neurologic injury.
Damage to the cauda equina, a bundle of nerves at the base of the spinal cord, can cause profound and permanent deficits.
Symptoms such as new-onset loss of sensation in the lower limbs, paralysis, or bowel/bladder incontinence are red flags for severe nerve compression or injury, such as Cauda Equina Syndrome.
These symptoms represent a direct and serious potential complication of the procedure.

Option B: Electrolyte imbalances are a general post-operative risk associated with factors like anesthesia, IV fluids, and metabolic stress, not a specific complication arising directly from the surgical technique of a laminectomy.
Option C: Loss of hair (alopecia) has no physiological connection to a lumbar laminectomy procedure.
Option D: This option is incorrect because the first option lists several well-documented and serious potential complications of a lumbar laminectomy.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Complications of Lumbar Laminectomy as background academic context rather than a clinical decision trigger.
Recognizing the signs of neurologic compromise after a laminectomy is a critical nursing responsibility. Prompt identification and reporting of symptoms like new weakness, numbness, or incontinence can prevent permanent disability.
Post-operative neurovascular assessments are not just routine; they are the primary method for detecting emergent complications like an epidural hematoma or cauda equina syndrome.
Patient education should include instructions to immediately report any new numbness in the groin or buttocks ('saddle anesthesia'), difficulty urinating, or loss of bowel control after discharge.

How to Approach the Question

First, identify the core subject of the question: complications of a 'lumbar laminectomy'.
Recall the anatomy involved: the lumbar vertebrae, spinal cord, and nerve roots.
Consider the nature of the surgery: removing bone close to delicate neural structures.
Evaluate each option based on its relationship to this specific procedure.
Option A lists direct neurologic consequences of injury to the spinal cord or nerves (sensation loss, paralysis, incontinence), which is a primary risk.
Options B (electrolyte imbalance) and C (hair loss) are not directly caused by the surgical actions of a laminectomy.

Concept Tested & Keywords

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E6 Medicine Harrison 22e Part 2 p. 1464-1466

Practise the full NIMHANS Nursing Officer - 2019

Attempt every question from this paper in a timed mock, then review the full solution for each one.