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. 2023 Sep 18:23:101193.
doi: 10.1016/j.artd.2023.101193. eCollection 2023 Oct.

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

Diego Alarcon Perico  1 , Christopher N Warne  1 , Sheng-Hsun Lee  1 , Heather J Roberts  1 , Rafael J Sierra  1
Affiliations

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

Diego Alarcon Perico et al. Arthroplast Today. .

Abstract

Aiming for a combined cup and stem anteversion within a target range is one way to assess appropriate prosthetic component orientation and restoration of functional range of motion. We describe a surgical technique that allows the surgeon to assess the combined anteversion using a handheld accelerometer-based navigation system for total hip arthroplasty through a posterior approach. The femur is prepared first, at which time the femoral version is estimated by the surgeon. The acetabular component is then positioned using the navigation system to estimate anteversion, with the goal of providing a combined version of 37° ± 7°. The described technique allows surgeons to achieve the desired intraoperative combined anteversion.

Level of evidence: IV (technical note).

Keywords: Combined version; Navigation; Total hip arthroplasty.

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Figures

Figure 1
Figure 1
The navigation unit and reference sensor each contain triaxial accelerometers and gyroscopes that communicate wirelessly with one another.
Figure 2
Figure 2
The metal pelvic base and navigation unit were percutaneously secured with 2 pins to the ipsilateral iliac crest using sterile technique.
Figure 3
Figure 3
The longitudinal coronal plane of the body was registered by holding the registration probe parallel to the long axis of the body.
Figure 4
Figure 4
The femoral version is estimated by holding the knee flexed with the tibia in a vertical position. The version is then registered.
Figure 5
Figure 5
The acetabular version is measured using the navigation system.
See this image and copyright information in PMC

References

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