In Neer's classification for impingement syndrome, Type I acromion corresponds to which shape?

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Prepare for the Medbridge Orthopedic Clinical Specialist Test. Test your knowledge with multiple choice questions, each featuring hints and explanations. Ace your exam with ease!

Multiple Choice

In Neer's classification for impingement syndrome, Type I acromion corresponds to which shape?

Explanation:
Neer's impingement classification uses how the acromion sits over the rotator cuff to describe instability and irritation during arm elevation. The flat acromion, with a straight undersurface, maintains the widest subacromial space and is less likely to pinch the rotator cuff compared with the other shapes. In contrast, a curved acromion narrows the space somewhat, and a hooked acromion narrows it the most, increasing impingement risk. So, Type I corresponds to a flat-shaped acromion.

Neer's impingement classification uses how the acromion sits over the rotator cuff to describe instability and irritation during arm elevation. The flat acromion, with a straight undersurface, maintains the widest subacromial space and is less likely to pinch the rotator cuff compared with the other shapes. In contrast, a curved acromion narrows the space somewhat, and a hooked acromion narrows it the most, increasing impingement risk. So, Type I corresponds to a flat-shaped acromion.

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