Diagnosis

Multifragmentary fracture, intact segmental (AO/OTA 42C2) 

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Multifragmentary fracture, intact segmenta

Multifragmentary fracture, intact segmenta

These are complex fractures of the tibial diaphysis, with an intermediate, intact segmental fragment, thus without contact between the main proximal and distal fragments.
These fractures are classified as AO/OTA 42C2 fractures.

Multifragmentary fracture, intact segmenta

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