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Neer's Classification

Discover Neer's Classification for proximal humerus and distal clavicle fractures, including types, symptoms, and treatments. A comprehensive guide for healthcare professionals and students.

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By Nate Lacson on Aug 2, 2025.

Fact Checked by Ericka Pingol.

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Neer's Classification Template

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Commonly asked questions

Neer's classification categorizes proximal humeral fractures based on the number and displacement of fracture parts, including one-part, two-part, three-part, and four-part fractures.

The classifications include one-part (non-displaced), two-part, three-part, and four-part fractures. The modified Neer classification for distal clavicle fractures includes Type I (lateral to CC ligaments), Type IIa (medial to CC ligaments with displacement), Type IIb (between CC ligaments with torn conoid ligaments), Type III (intra-articular), Type IV (Salter-Harris type I), and Type V (comminuted with medial displacement).

The four parts are the humeral head, greater tuberosity, lesser tuberosity, and surgical neck.

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