Traumatic fracture showing avascular necrosis: (PGI Dec 2007)
Ans. A (Femoral neck) /Ref: Maheswari 3td/40-41,270; Dahnert Radiology Review manual 5th/46-48; Chapman 4th/45-46; Apley 8th/570-571]Avascular necrosis is common in fracture of- femoral neckQ (including slipped capital femoral epiphysis(r), posterior dislocation of hip}, neck talus(r), waist scaphoid(r) & lunateQ (dislocation) - Apley 8th/570In fracture neck fern urr the more proximal the lesions, more are the chance of avascular necrosis. So subcapital fracture neck femur has maximum chance ofAVN (worst prognosis)
Femoral neck
Surgical neck of humerus
Body of talus
Cuboid
Avascular Necrosis