Neer classification is used to categorize fractures of which bone?

Neer classification is used to categorize fractures of which bone?

• A. Humeral shaft
• B. Proximal humerus
• C. Radius
• D. Ulna

Answer: (B)

This question tests knowledge that Neer classification is used for fractures of the proximal humerus, the portion near the shoulder joint. The system looks at how many parts of the proximal humerus are displaced and by how much. A part is a segment that is displaced more than about 1 cm or angulated more than 45 degrees. The four parts counted are the humeral head, greater tuberosity, lesser tuberosity, and the surgical neck/proximal shaft region. Fractures are described as two-part, three-part, or four-part based on how many of these segments are displaced. This classification helps guide treatment decisions—from conservative management to surgical repair or arthroplasty—and it signals prognosis, particularly because more-part fractures carry higher risk of complications like avascular necrosis. Other bones listed would use different classification schemes (for example, shaft fractures of the humerus, or fractures of the radius/ulna), so the Neer system is specific to proximal humerus fractures.

This question tests knowledge that Neer classification is used for fractures of the proximal humerus, the portion near the shoulder joint. The system looks at how many parts of the proximal humerus are displaced and by how much. A part is a segment that is displaced more than about 1 cm or angulated more than 45 degrees. The four parts counted are the humeral head, greater tuberosity, lesser tuberosity, and the surgical neck/proximal shaft region. Fractures are described as two-part, three-part, or four-part based on how many of these segments are displaced. This classification helps guide treatment decisions—from conservative management to surgical repair or arthroplasty—and it signals prognosis, particularly because more-part fractures carry higher risk of complications like avascular necrosis. Other bones listed would use different classification schemes (for example, shaft fractures of the humerus, or fractures of the radius/ulna), so the Neer system is specific to proximal humerus fractures.