Fluoroscopy in measurement of femoral neck anteversion.

Fluoroscopy for determination of femoral neck anteversion was evaluated in 24 patients (48 hips) aged 5 to 15 years. The measurements of the anteversion angle of the femoral neck obtained by the fluoroscopic method were compared with those determined by the biplanar method of Dunlap/Rippstein. It is concluded that fluoroscopy incorporates errors to such a degree that the method is not reliable for clinical work.