Science

IHS

During surgery in the supine position, using a functional registration plane was more accurate than using an anatomic reference plane. The increased measurement error using an anatomic reference plane was clinically significant, with nearly one-third of anteversion results outside of a ± 10° target window. Using the table tilt method of registration instead of anatomical landmarking provided further improvements in accuracy.

MDER

Through bench testing and usability testing, the Navbit Sprint system was found to be precise and accurate, with a mean absolute error of 1.21°. The system was also found to be usable and to add an estimated 7 minutes to surgery time.

HSS

The Navbit Sprint novel inertial-based navigation tool is accurate for cup positioning in THA in the supine and lateral positions.

AOANJRR

In Australia, 56.9% of hip revision surgeries involve replacement of the acetabular component (alone or part of THR), which results in a significantly lower cumulative risk of second revision compared with only replacing femoral components.

JB&JS

Using navigation to improve acetabular component placement was associated with lower risk of dislocation.

JB&JS

At 10 years, the cumulative risk of all-causes revision was significantly lower in navigated (1.06%) compared with non-navigated (3.88%) total hip arthroplasties.

BJJ

For the 51.3% of revision THAs which were deemed avoidable, the primary reason for revision was suboptimal positioning of the acetabular cup, accounting for 48.3%.

JB&JS

An estimated 50 to 61% of post-surgery acetabular cup positions fall outside of a safe zone, demonstrating the difficult of positioning this component.