Question

A herniated nucleus pulposus at the L3-L4 disc produces which of the following clinical findings?

1. Numbness in the back of the calf and dorsiflexor weakness
2. Numbness in the anteromedial thigh and knee and quadriceps weakness
3. Numbness and weakness in the thighs, legs, feet, and/or perineum
4. Numbness in the back of the calf and atrophy of the gastrocnemius and soleus
Your Answer: unanswered

Answer 1

Herniation of the nucleus pulposus at the L3-L4 disc level is typically associated with numbness in the anteromedial thigh and knee along with quadriceps weakness due to nerve root compression.

Step-by-step explanation:

A herniated nucleus pulposus at the L3-L4 disc would most likely result in clinical findings that include numbness in the anteromedial thigh and knee and quadriceps weakness, due to the compression of the nerve root that affects these areas.

The presence of herniation typically signifies the weakening of the anulus fibrosus allowing the softer gel-like nucleus pulposus to protrude causing compression on the spinal nerve and resulting in corresponding sensory and motor deficits. Affected individuals may experience these symptoms along the dermatome and myotome of the compressed nerve.