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Supracondylar Fractures in Children

EXTENSION TYPE SUPRACONDYLAR FRACTURES     [Back To Top] 

Most common type

Anatomy

  • At age of 6.5 yrs, supracondylar area is remodelling, and is thinner than at other ages

  • Elbow also tends to hyperextend at this age group, contributing to the mechanism of injury

Mechanism of injury:

  • Fall onto outstretched hand from bunkbed /climbing frame height.

  • The elbow becomes locked in hyperextension

  • The linear applied force then produces tension forces anteriorly

  • The olecranon is forced posteriorly into the olecranon fossa

  • As the anterior bending force continues, the distal humerus fails in tension at the supracondylar region

  • Triceps causes posterior and proximal migration of distal fracture fragment

Classification :

Gartland's classification, 1959 :

Type 1   

 Undisplaced

Type 2    

 Displaced with intact posterior cortex

Type 3    

 Displaced, no cortical contact, posteromedial, posterolateral   



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