A prospective, randomized study was used to evaluate a laser guide to
aim the image intensifier during the treatment of 52 patients with int
ertrochanteric fractures of the proximal femur using a dynamic hip scr
ew. The laser guide reduces the fluoroscopic screening rime by 40 per
cent (P<0.05). We conclude that laser aiming of the image intensifier
has a role in training radiographers, and reducing the dosage of irrad
iation in theatre procedures. (C) 1997 Elsevier Science Ltd.