Diagnosis

Complete articular fracture, fragmentary articular (AO/OTA 41C3) 

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Complete articular fracture, fragmentary articular (AO/OTA 41C3)

Multifragmentary articular fractures characterized by the involvement of both the medial and lateral condyles are classified by the AO/OTA as 41C3 fractures. The metaphyseal part of the fracture may be multifragmentary as well.

They usually result from high-energy injuries. In addition to the bicondylar fragmentation there is metaphyseal comminution with loss of continuity between the proximal epiphysis and the diaphysis.

A major concern in managing these severe injuries is the invariably present severe soft-tissue envelope injury. Treatment of these fractures is difficult and requires careful judgment and technical expertise.

Complete articular fracture, fragmentary articular (AO/OTA 41C3)

X-ray taken from Orozco R et al, (1998) Atlas of Internal Fixation. Used with kind permission.

 CT scan

Transverse cut.

lateral CT scan

Sagittal cut.

lateral CT scan

Sagittal cut.

AP CT scan

Coronal cut.

CT scan

Coronal cut.