Objective:

To address surface marker drift in semi-rigid pelvic structures, enhancing precision in binocular vision navigation for surgical applications, which is critical for improving surgical outcomes.

Key Findings:

• Drift range of surface markers was 0.86 ± 0.11 mm after correction.
• Specific drift ranges: left anterior superior iliac spine marker 0.79 ± 0.12 mm, right anterior superior iliac spine marker 0.85 ± 0.14 mm, pubic symphysis marker 0.96 ± 0.25 mm.
• Stability around the umbilicus was poorer, with an error range of 1.71 ± 0.91 mm.
• Three out of four markers achieved millimeter-level positioning accuracy, meeting sub-4 mm Target Registration Error (TRE) standards.

Interpretation:

The study successfully mitigated surface marker drift, significantly enhancing the reliability of binocular vision navigation in pelvic floor surgeries, which is crucial for improving surgical precision.

Limitations:

• Study limited to a small sample size of 20 participants, which may affect the robustness of the findings.
• Findings may not be generalizable to all semi-rigid anatomical structures, limiting broader application.

Conclusion:

This research lays a foundation for future advancements in navigation systems targeting semi-rigid anatomical structures, particularly in pelvic floor reconstruction, potentially improving surgical outcomes.