Excellent long-term outcomes with an anatomic cementless stem (SPS Evolution) designed using a CT-scan database and inserted with 3D CT-scan preoperative planning: A prospective cohort study

BACKGROUND: Recently, improved hip reconstruction accuracy after total hip arthroplasty (THA) was reported with a specific anatomic stem featuring helicoidal torsion and a double sagittal curvature (SPS Evolution™), compared to the standard double-tapered straight stem, which remains the most widely used design globally. However, no studies have analyzed the ten-year outcomes of THA using this stem. The objective of this study was to assess the survivorship of SPS Evolution™ at ten-year...