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Neer classification new article content ... The Neer classification categorises fractures of the proximal humerus (bone of the upper extremity).

Neer: Neer, Charles Sumner, MD, Prof. (*November 10, 1917) specialised in orthopaedics and, due to his achievements in shoulder and elbow surgery, became the first President of the American Shoulder and Elbow Surgeons in 1982.

In 1970 he published a classification of proximal humeral fractures ^[1], ^[2], thus revising Codman´s categories from 1934 ^[3]. Both divided the proximal humerus into four main segments:

calotte
greater tuberosity
lesser tuberosity
humeral shaft

Neer classifies all fractures with a dislocation <1cm or with an angular displacement of <45 degrees as group 1 fractures. Groups 2 to 5 contain all dislocated fractures depending on the site of fracture: group 2 fracture of the anatomical neck, group 3 surgical neck, group 4 greater tuberosity, group 5 lesser tuberosity, and group 6 luxation fracture. Additionally, Neer distinguishes between fractures with 2, 3 or 4 fragments.

References

^ Neer, C.S. II (1970). Displaced proximal humeral fractures: part I. Classification and evaluation. J Bone Joint Surg Am, 52,1077-89.
^ Neer, C.S. II (1970). Shoulder reconstruction. Philadelphia: Wb Saunders Company, pp. 364-98.
^ Codman, E.A. (1934). The shoulder. New York: G. Miller & Co Medical Publishers, pp. 313-31

External links

Graphical visualisation: www.e-radiography.net/articles/ortho/Image10.jpg

[1] Neer, C.S. II (1970). Displaced proximal humeral fractures: part I. Classification and evaluation. J Bone Joint Surg Am, 52,1077-89.

[2] Neer, C.S. II (1970). Shoulder reconstruction. Philadelphia: Wb Saunders Company, pp. 364-98.

[3] Codman, E.A. (1934). The shoulder. New York: G. Miller & Co Medical Publishers, pp. 313-31

[1]

[2]

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