The influence of bearing surfaces on periprosthetic hip infections: analysis of thirty nine thousand, two hundred and six  cementless total hip arthroplasties.

Bearing surfaces influenced the rate of PHI; in particular, stemmed MOM implants were at higher risk, probably due to metal debris consequent to taperosis. Despite the preliminary results, stemmed MOM THAs should be used with care, and diabetic patients should be warned about increased septic risks.