Technical aspects of computer-assisted opening wedge high tibial osteotomy

Area of Science:

• Orthopedic Surgery
• Medical Technology
• Biomechanical Engineering

Background:

• Medial opening wedge proximal tibial osteotomy is a surgical procedure to correct lower limb alignment.
• Accurate limb alignment is crucial for successful surgical outcomes and long-term joint health.
• Traditional methods may have limitations in providing real-time intraoperative feedback on alignment.

Purpose of the Study:

• To describe a technical approach for computer-assisted navigation in medial opening wedge proximal tibial osteotomy.
• To evaluate the feasibility and accuracy of using computer-assisted navigation for intraoperative limb alignment monitoring.
• To assess the impact of computer-assisted navigation on surgical efficiency and radiographic outcomes.

Main Methods:

• Application of computer-assisted navigation system during medial opening wedge proximal tibial osteotomy.
• Real-time monitoring and documentation of limb alignment at multiple surgical stages.
• Intraoperative measurements including operative time, incision length, and fluoroscopy duration.
• Postoperative radiographic assessment to confirm achieved limb alignment.

Main Results:

• Computer-assisted navigation allows continuous monitoring and documentation of limb alignment.
• Average operative time was 68 minutes with minimal fluoroscopy (12 seconds).
• Surgical incisions measured 4-6 cm.
• Follow-up assessments confirmed corrections within 2 degrees of the planned alignment.

Conclusions:

• Computer-assisted navigation is a valuable tool for medial opening wedge proximal tibial osteotomy.
• It provides crucial real-time intraoperative information to guide surgical decision-making.
• This technology aids in achieving and confirming accurate limb alignment, potentially improving surgical results.