Radiation exposure to the eye causes cataracts. Few orthopaedists wear leaded glasses when using fluoroscopy despite regulatory limits for maximum annual eye exposure. Using anthropomorphic patient and surgeon phantoms, radiation dose at the surgeon phantom's lens was measured with and without leaded glasses during fluroscopic acquisition of 16 common pelvic and hip views. The magnitude of lens dose reduction was calculated by dividing the unprotected dose by the dose measured behind leaded glasses.Introduction
Methods
Treatment of scaphoid fractures continues to be a difficult problem for both acute unstable fractures and non-unions. In our study, the results of a consecutive series of symptomatic non-unions of scaphoid fractures treated with Herbert screw and bone graft during period between July 1996 and June 2000 are studied. Out of a total of 66 patients (one bilateral), 61 (91.04%) cases who had symptomatic non-unions (type D) were treated with Herbert screw plus iliac crest bone graft while 6 (8.95%) cases were treated for acute unstable fractures (type B) with Herbert screw only (these are excluded from the study). All fractures were classified according to Herbert classification. Russe approach was used in 50 patients while dorsal approach was used in 11 cases with proximal pole fracture non-union. The time interval between injury and surgery was 12.2 months (range 2–72 months). Patients were followed up for radiological evidence of union and clinically for range of movement of wrist, grip strength and outcome score. The site of fracture, type, screw placement, the time interval between the original injury and non-union surgery, and age of the patient, were investigated to assess whether they influenced outcome.
