Acetabular Bone Preservation in H1 Ceramic Hip Resurfacing: A Comparison With A Conventional Metal‐on‐Metal Hip Resurfacing

. This 35% reduction was statistically significant. H1 cups had less medialization (-1 mm vs. -6 mm), superior displacement (-1 mm vs. -2 mm), and posterior displacement (-1 mm vs. -3 mm). The mean cup non-coverage ratio was not significantly different (10% vs. 8%). The anatomically designed H1HR achieved a significant 35% reduction in acetabular bone resection compared with BHR. This substantial volume of bone preservation was primarily attributed to the design enabling cup placement with minimal medialization, without increasing the cup non-coverage ratio. Although further validation in cadaveric or postoperative imaging studies is needed, H1 may be a promising option for bone preservation, particularly for young, active patients who might require future revision surgery.