Welcome to Classifications and Online Calculators in Radiology

This site was build along with the Atlas of Radiology Images to support your knowledge in radiology.

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that are used in radiology and related fields with free access.

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    Fracture of radius - Melone classification of distal intraarticular radial fractures

    Melone classification of distal intraarticular radial fractures was published in 1984. It is based on four main parts of the radius:

    • shaft
    • radial styloid
    • dorsal medial
    • palmar medial.

    The original classification had four types, this modified classification has additional fifth group of severly comminuted fractures.

    Type Description
    Type I undisplaced fracture with no or minimal comminution
    Type II "die punch" fracture with moderate to severe displacement
    • Type IIa: reducible
    • Type IIb: irreducible
    Type III fracture with spike fragment - commonly associated  with nerve or tendon injury
    Type IV wide separation or rotation of the dorsal fragment and rotation of the palmar fragment
    Type V explosion fracture with severe comminution, transverse split, and rotational displacement

    References:

    1. Melone CP. Articular Fractures of the Distal Radius. Orthop Clin North Am 1984;15:217-236
    2. Melone CP. Open Treatment for Displaced Articular Fractures of the Distal Radius. Clin Orthop 1986;202:103-111.
    3. Melone CP. Distal Radius Fractures: Patterns of Articular Fragmentation. Orthop Clin North Am 1993;24:239-253.
    4.     Kural C, Sungur I, Kaya I, Ugras A, Ertürk A, Cetinus E. Evaluation of the Reliability of Classification Systems Used for Distal Radius Fractures. Orthopedics. 2010 Nov 2
    5. Andersen DJ, Blair WF, Stevers Jr. CM, Adams BD, El-Khouri GY, Brandser EA. Classification of distal radius fractures: An analysis of interobserver reliability and intraobserver reproducibility. The Journal of Hand Surgery. 1996 Jul;21(4):574–82
    6. Goldfarb CA, Yin Y, Gilula LA, Fisher AJ, Boyer MI. Wrist Fractures: What the Clinician Wants to Know1. Radiology. 2001 Apr;219(1):11–28.

    Updated 9/11/2013 18:24 by Lambert
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