In fracture of the olecranon, excision of the proximal fragment is indicated in all of the following situations except :: (A) Old united fracture, (B) Non-articular fracture, (C) Fracture extending to coronoid process, (D) Elderly patient
Answer is C. 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.