Combined Anteversion Technique for Total Hip Arthroplasty With Handheld Accelerometer-Based Navigation System.

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Arthroplasty

Background:

• Achieving optimal prosthetic component orientation is crucial for restoring functional range of motion in total hip arthroplasty.
• Combined cup and stem anteversion is a key parameter for assessing appropriate component positioning.

Purpose of the Study:

• To describe a novel surgical technique for assessing combined anteversion in total hip arthroplasty.
• To utilize a handheld accelerometer-based navigation system for precise component placement.

Main Methods:

• The technique involves preparing the femur first, followed by acetabular component positioning using navigation.
• A posterior approach is employed for total hip arthroplasty.
• An accelerometer-based navigation system estimates femoral and acetabular version intraoperatively.

Main Results:

• The described technique facilitates the assessment of combined cup and stem anteversion.
• Surgeons can achieve a target combined anteversion of 37° ± 7°.
• The navigation system aids in accurate prosthetic component orientation.

Conclusions:

• This accelerometer-based navigation technique provides a reliable method for achieving desired combined anteversion in total hip arthroplasty.
• The described surgical approach allows for precise restoration of functional range of motion through accurate component positioning.
• This technical note offers a valuable tool for orthopedic surgeons performing total hip arthroplasty.