|
Year |
2002 |
|---|---|
|
Question Number |
85. |
|
Category |
Orthopaedic Science |
Question
During an anterior approach to the SI Joint, the surgeon inadvertently injures the L5 nerve root. Weakness will most likely be observed in the muscles innervated by which of the following nerves?
a. Femoral
b. Obturator
c. Pudendal
d. Superior Gluteal
e. Genitofemoral
Figures
Answer (click for answer)
The correct answer is (d) Superior gluteal.
This is a strict memorization question. The divisions are as follows:
Femoral: L 2,3,4
Obturator: L 2,3,4
Pudendal: S 2,3,4
Superior Gluteal: L 4,5 S 1
Genitofemoral: L 1,2
Reference: Netter, Frank. Atlas of Human Anatomy. CIBA © 1989. Plate 467.