Traumatic fracture showing avascular necrosis: (PGI Dec 2007)
Femoral neck
Surgical neck of humerus
Body of talus
Cuboid
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)
Avascular Necrosis