ABSITE REVIEW: DYSFUNCT LONG THORAC N INJ MASTECT
QUESTION: While performing a modified radical mastectomy in the above patient, you cut the long thoracic nerve. Postoperatively, this patient is most likely to have:
a. Weak adduction
b. Winged scapula
c. Weak abduction
d. Paralyzed diaphragm
ANSWER: The answer is b.
– The long thoracic nerve innervates the serratus anterior muscle.
– Laceration of this nerve will cause a winged scapula.
– Dysfunction in long thoracic nerve injury during mastectomy: winged scapula
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