Accuracy of the Nunn Method in Measuring Acetabular Cup Migration

Abstract

The accuracy of the Nunn method in measuring acetabular component migration was compared with 3 other radiological methods and with roentgen stereophotogrammetry in 34 pelvic radiographs. The Nunn method seems to have the same or better accuracy than the other noncomputerized methods, but less accuracy than the computerized EBRA method.