Vol. 9, Issue 3, Part A (2025)

Total hip arthroplasty (THA) is a widely performed procedure, and accurate acetabular component positioning is essential for optimal biomechanics, implant longevity, and patient function. Malposition can lead to instability, increased wear, impingement, reduced range of motion, limb length discrepancy, and early loosening. Factors such as surgical technique, patient anatomy, bone quality, and navigation aids significantly influence cup inclination and anteversion. Understanding the interplay between component orientation and postoperative biomechanics helps minimize complications. Proper evaluation through imaging and adherence to recommended positioning ranges remain critical for achieving stable, functional, and long-lasting THA outcomes.