Dynamic Acetabular Cup Orientation in Total Hip Replacements Patients

Description

In this presentation, Dr. Ksenija Vasiljeva discusses her research on dynamic cup orientation during total hip replacement surgeries. The study investigates how factors such as the version and inclination of the hip replacement cup can impact surgical outcomes, particularly in relation to implant failures. Traditional methods often fail to account for the dynamic aspects of a patient's movement, particularly walking speed, which the current research addresses by analyzing patient-specific features.



Using a custom algorithm, Dr. Vasiljeva converted pelvic movements into cup orientation values throughout the gait cycle, testing two groups of patients—high-functioning and low-functioning—based on their self-selected walking speeds. The study's findings showed that while the overall average cup orientations were not significantly different between the two groups, when assessed over the entire gait cycle, notable differences emerged, particularly in version angles that were significantly more negative for high-functioning patients.



The presentation concludes with the suggestion that an understanding of these dynamics may influence implant selection and positioning in surgeries, although further research is needed to establish conclusive guidance for surgeons.

DOI: 10.1302/3114-221028

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