[Computer-assisted total bilateral knee arthroplasty in one surgical time]

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering

Background:

• Total navigated knee replacement utilizes computer-guided systems for real-time intraoperative data on knee conditions and limb alignment.
• This technology offers immediate feedback during surgery, enhancing precision.

Purpose of the Study:

• To evaluate the clinical and radiographic outcomes of computer-navigated total knee replacement.
• To assess the reliability, safety, and patient satisfaction with this surgical technique.

Main Methods:

• An observational, descriptive study was conducted from March 2003 to February 2019.
• Simultaneous bilateral total knee replacement was performed, with patient function and pain assessed using WOMAC, EVA, and range of motion scores.
• Statistical analysis included Student's t-test and chi-squared tests.

Main Results:

• The study included 31 patients (62 knees), with 83.9% females, average age 67.32 years, and a mean follow-up of 6.55 years.
• 100% of knees showed mechanical axis deviation between 0° and 2° post-surgery.
• Significant improvements were observed in WOMAC (22.71 to 4.16) and EVA (9.06 to 2.35) pain scores post-surgery.

Conclusions:

• Computer-navigated total knee replacement demonstrates reliability and safety.
• The technique yields excellent clinical and radiographic results, particularly in prosthetic component positioning.
• Patient outcomes indicate a satisfactory experience with the procedure.