q13 - raji_321

[ArchivalUser]

A 17-year-old female suffers a fracture of her left tibia. The leg is placed in a cast, but after several days, the patient complains of sensory loss on the dorsum of the left foot. Examination reveals weakness when attempting to dorsiflex the left foot against resistance. This combination of symptoms is consistent with compression of a nerve near the
A. anterior border of the tibia
B. lateral malleolus
C. medial femoral condyle
D. medial malleolus
E. neck of the fibula

[ArchivalUser]

EEEE

[ArchivalUser]

E..

[ArchivalUser]

E is correct

Fortunately, no major nerves pass over the anterior border of the tibia (choice A).

Compression of nerve branches passing near the lateral malleolus (choice B) could cause some sensory loss from the skin of the lateral foot (due to compression of the lateral dorsal cutaneous nerve).

The saphenous nerve passes near the medial femoral condyle (choice C). Compression of this nerve could result in loss of sensation from the skin of the medial leg.

The tibial nerve courses below the medial malleolus (choice D). Compression of the tibial nerve at this location could result in loss of sensation on the plantar surface of the foot.