Taper Fracture of Uncemented Femoral Stem after Total Hip Arthroplasty

Abstract

Fracture through the tapered femoral neck of total hip arthroplasty is extremely rare. We report the taper neck fracture of a cementless stem in an extensively porous-coated femoral prosthesis used for total hip arthroplasty due to chronic hip infection 8 years previously in a 42-year-old man, weighing 110 kg with a body mass index of 39. We consider that cyclical loading stresses, fretting corrosion, and high body mass index are possible potential risk factors of such fracture.