Lumbrosacral Plexus and Other Nerve Lesions

If a patient was having trouble everting their foot, what nerve would you expect may be injured?

Foot drop results from damage to what nerve?

Laceration at the L2-L4 spinal cord segments may result in a diminished myotatic reflex of what ligament?

A patient asked to stand on one foot is unable to maintain a balanced posture because their pelvis is dropping towards the unsupported side indicating a positive Trendelenburg sign. Which injury is most likely responsible?

In order to avoid injury to the sciatic nerve, intramuscular injections should be given in which quadrant of the buttock?

When, in approximately 12% of people, the common fibular nerve passes through the piriformis muscle, the nerve may be compressed. This would affect part of which muscle?

Compression of the tibial nerve is likely to affect which action? Select all that apply.

While in a car accident your patient’s knee slammed into the dashboard. They are now unable to plantarflex their ankle or flex their toes, and they are unresponsive to sensory testing on the sole of the foot. Which of the following nerves is most likely injured?

You were accidentally shot by an arrow in the lower region of your vertebral column. Your physician informs you that both ankles are positive for the ankle reflex. This indicates that which two nerve roots are unlikely damaged?

You ask your patient to lie prone with their eyes closed and feet hanging over the edge of the table. After performing a monofilament test (poking) on the plantar side of the little toe your patient does not respond to the stimulus. Which nerve is likely damaged?

The plantar reflex tests the integrity of the spinal cord from L4 toS2, and also determines if corticospinal tracts are functioning. The normal plantar response is downward flexion of the toes. If there is damage, the great toe dorsiflexes and smaller toes fan laterally (Babinski's sign). Infants, who normally lack complete myelination, exhibit this sign.

A patient presents with tarsal tunnel syndrome, and has edema in the ankle particularly between the medial malleolus and calcaneus. The patient is complaining of heel pain and an inability to curl their toes. After examining the patient you recognize the ____________ nerve is being compressed by the _______________.

This muscle is important for extending the thigh especially during climbing the stairs

Injury to the common fibular nerve will lead to foot drop and leads to all of the following gait abnormalities except:

For individuals with spinal cord injuries, compression and ischemia of the skin and subcutaneous tissues overlying ischial tuberosities caused by prolonged sitting in one position is known as: