The remaining risk factors and predictors (BMI, preoperative HHS, sex, osteoarthritis, femoral neck fracture, dysplasia, surgical approach, operation time, intraoperative blood loss, acetabular cup inclination, CRP 1–3 days postoperatively, CK 1–3 days postoperatively, and use of bone cement) were not statistically significant (see Table 5). This evidence concerns the gene CRP and osteoarthritis.