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What is In fracture of the olecranon, excision of the proximal fragment is indicated in all of the following situations except : and explain in detail?
Indications of proximal fragment excision in olecranon fracture :

Old ununited fracture.
Nonarticular fractures.
Open fractures with soft tissue viability questionable.
Fractures with extensive comminution (ORIF not possible).
Fractures in elderly.