Napoléon's sign is used to assess weakness in which muscle?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Study for the NATA BOC Domain 2 Clinical Evaluation and Diagnosis Test. Utilize our comprehensive flashcards and multiple-choice quiz features; each question comes with hints and thorough explanations. Prepare effectively for your certification exam!

Multiple Choice

Napoléon's sign is used to assess weakness in which muscle?

Explanation:
Napoléon's sign specifically evaluates the subscapularis, the muscle responsible for internal rotation and anterior stability of the shoulder. In this test, the patient positions the hand behind the back (behind the scapula) and tries to maintain or move the hand inward against resistance. If the subscapularis is weak, the patient cannot hold that position or maintain internal rotation, and the sign becomes positive. This is why weakness in the subscapularis is identified by Napoléon's sign. Other rotator cuff tests target different muscles (supraspinatus, infraspinatus, teres minor) and would yield different patterns of weakness or pain.

Napoléon's sign specifically evaluates the subscapularis, the muscle responsible for internal rotation and anterior stability of the shoulder. In this test, the patient positions the hand behind the back (behind the scapula) and tries to maintain or move the hand inward against resistance. If the subscapularis is weak, the patient cannot hold that position or maintain internal rotation, and the sign becomes positive. This is why weakness in the subscapularis is identified by Napoléon's sign. Other rotator cuff tests target different muscles (supraspinatus, infraspinatus, teres minor) and would yield different patterns of weakness or pain.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy