The modern state of femoral, acetabular, and global offsets in total hip arthroplasty: a narrative review

. Offsets in the frontal plane are important for hip function. . Research on total hip arthroplasty (THA) surgery agrees that increasing femoral offset up to 5 mm could improve functional outcome measures. . The literature indicates that global offset is a key parameter that physicians should restore within 5 mm during surgery and avoid decreasing. . Substantiated findings on acetabular offset are lacking despite its recognized importance, and the medialization approach must be assessed in light of its shortcomings. . Future research, possibly through improved measurement, unified definitions, patient-specific surgical planning, and technology-enhanced surgical control, with specific focus on acetabular offset, is needed to better understand its impact on THA outcomes.