The document discusses factors used to determine the optimal fixation type for a total hip arthroplasty (THA) procedure. It notes that the majority of THAs in the US use cementless fixation. Evaluation points include patient sex and age, Singh's index of femoral bone quality, and the Martell hip classification index. The final Spotorno score is used to determine whether cementless, possible, or cemented fixation is recommended, with higher scores indicating cemented fixation may be preferable. Cemented, cementless, hybrid, and reverse hybrid are listed as fixation type options.