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Updated: Jun 29, 2026
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Optimizing Minimally Invasive Spine Surgery: A Fully 3D CT O-Arm Navigated Workflow in MIS TLIF
Published on: October 17, 2025
Comparative study between computer assisted-navigation and conventional technique in minimally invasive surgery total
Thanainit Chotanaphuti1, Pipat Ongnamthip, Krit Teeraleekul
1Department of Orthopaedics, Phramongkutklao Hospital & College of Medicine, Bangkok 10400, Thailand.
Summary
Computer-assisted surgery (CAS) in minimally invasive total knee arthroplasty (MIS-TKA) improves limb and implant alignment accuracy. This navigation technique does not increase surgical time or complications compared to conventional methods.
Area of Science:
- Orthopedic Surgery
- Surgical Navigation
- Arthroplasty
Background:
- Minimally Invasive Surgery (MIS) and Computer-Assisted Surgery (CAS) offer benefits in Total Knee Arthroplasty (TKA).
- MIS-TKA is linked to reduced blood loss, shorter hospital stays, and improved range of motion.
- CAS aims to enhance implant positioning accuracy during TKA.
Purpose of the Study:
- To compare radiographic outcomes, specifically component position and limb alignment.
- Evaluate the effectiveness of navigation systems versus conventional techniques in MIS-TKA.
Main Methods:
- A prospective control study involving 180 patients undergoing TKA by a single surgeon.
- Patients were randomized into Conventional and Navigation TKA groups.
- Intraoperative, postoperative data, and limb alignment were recorded for comparison.
Main Results:
- The navigation group achieved 94% neutral mechanical alignment (within 3 degrees) versus 87% in the conventional group (p=0.13).
- Navigation system registration time averaged 13.58 minutes.
- No significant differences were observed in tourniquet time or postoperative blood loss between groups.
Conclusions:
- Navigation in TKA enhances accuracy for limb and implant alignment.
- The use of navigation does not lead to increased complications or surgical times.
- CAS is a valuable tool for improving outcomes in MIS-TKA.
