Mhh. Noordeen et al., UNRECOGNIZED JOINT PENETRATION IN TREATMENT OF FEMORAL-NECK FRACTURES, Journal of bone and joint surgery. British volume, 75(3), 1993, pp. 448-449
Screw devices used to treat fractures of the femoral neck are usually
positioned under image-intensifier control, using anteroposterior and
lateral views. The volume projected by these views is over 27% larger
than the femoral head; the tips of screws so placed may be outside the
femoral head. This can be avoided by placement within the central two
-thirds of the head: we have designed a template which can confirm saf
e placement.