Welcome to Classifications and Online Calculators in Radiology
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Boyd and Knight classification of talar body fractures
Boyd and Knight classification of fractures of the body of talus divides them into two basic groups that can be further divided according to displacement.
| Type | Description |
|---|---|
| Type I - Coronal or sagittal shear fracture | |
| Type Ia | undisplaced |
| Type Ib | displacement at ankle joint |
| Type Ic | displacement at ankle and subtalar joint |
| Type Id | total displacement |
| Type II - Horizontal shear fracture | |
| Type IIa | undisplaced |
| Type IIb | displaced |
References:
1. Boyd HB, Knight RA. Fractures of the astragalus. South Med J. 1942;35:160–167.
2. Ebraheim NA, Patil V, Owens C, Kandimalla Y. Clinical outcome of fractures of the talar body. Int Orthop. 2008 Dec;32(6):773–7.
Updated 9/11/2013 04:06 by Lambert
