We assessed radiation dose exposure of patients undergoing radiographic hip examination before and after total hip arthroplasty with EOS 2D/3D imaging system. Our purpose is to evaluate whether prosthetic implants increase the dose as observed with conventional digital radiography systems.

The EOS system is based on a newly invented type of gas detector, which in 1992 earned the Nobel Prize for physics to its inventor. Thanks to this new device, it is possible to obtain radiological images of superior quality to the standard ones, with a strong reduction of the radiation dose absorbed by the patient. The system is used above all for the study of diseases that affect the spine. This examination is performed in orthostatism giving the possibility to the radiologist to check...

Administered dose using EOS imaging system during THA radiographic follow-up (standing and sitting position) decreased up to 31% and 51%, respectively. In the latero-lateral projections of sitting hip administered dose decreased up to 39%, whereas in anteroposterior projection administered dose resulted increased up to 9%. Tables below detailed results obtained.

EOS imaging system substantially reduces the post-THA administered dose by more than 50% compared to radiographic pre-THA control.

Pelvic X-ray examinations in follow-up of hip arthroplasty or femoral osteosynthesis – Dose reduction and quality criteria European Journal of Radiology 84 (2015) 915–920