Saturday, June 12, 2010

March fracture usually occurs in the :
a) 1st metatarsal
b) 2nd metatarsal
c) 4th metatarsal
d) Head of talus

ANS:2ND METATARSAL



Stress fracture can occur at many sites in the body, but in particular a stress fracture occurring at metatarsal bones is called a march fracture. March fracture usually occurs in the shaft of the second or less often in the third metatarsal bone; stress fracture of the fifth metatarsal is a distinct fracture (the Jones fracture). In runners, march fracture occurs most often in the metatarsal neck, while in dancers it occurs in the proximal shaft. In ballet dancers, fracture mostly occurs at the base of the second metatarsal and at Lisfranc joints. This fracture always occurs following a prolonged stress or weight bearing, and the history of direct trauma is very rare. Consideration should always be given to osteoporosis and osteomalacia. Cavus feet are a risk factor for march fracture

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