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Published on: May 5, 2023
Closed-wedge high tibial osteotomy using computer-assisted surgery compared to the conventional technique.
1Department of Orthopaedic Surgery, School of Medicine Kyung Hee University, 1 Hoeki-dong, Dongdaemun-ku, Seoul 130-702, Korea.
The Journal of Bone and Joint Surgery. British Volume
|September 2, 2009
Summary
Computer-assisted surgery for high tibial osteotomy (HTO) improves accuracy and precision. This navigation technique offers reliable intra-operative data, leading to better outcomes in HTO procedures compared to conventional methods.
Area of Science:
- Orthopedic Surgery
- Biomechanical Engineering
- Medical Technology
Background:
- High tibial osteotomy (HTO) is a common surgical procedure to correct knee osteoarthritis.
- Conventional HTO techniques can have variability in accuracy and precision.
- Computer-assisted surgery (CAS) offers potential improvements in orthopedic procedures.
Purpose of the Study:
- To compare the reliability, accuracy, and variability of CAS-assisted closed-wedge HTO versus the conventional technique.
- To evaluate the intra-operative data provided by navigation systems in HTO.
- To assess the impact of CAS on the precision of coronal alignment correction in HTO.
Main Methods:
- A comparative study involving 100 patients undergoing closed-wedge HTO.
- 50 procedures utilized CAS with a navigation system.
- 50 procedures used the conventional surgical technique.
- Pre-operative and post-operative mechanical axis alignment was measured and compared between groups.
Main Results:
- CAS group showed a mean correction angle significantly more accurate (p < 0.002).
- Variability of correction was significantly lower in the CAS group (2.3 degrees vs 3.7 degrees, p = 0.012).
- Positive correlation found between navigation data and radiographic measurements (r > 0.3, p < 0.05).
Conclusions:
- CAS provides reliable real-time intra-operative information during closed-wedge HTO.
- Navigation systems may increase the accuracy of coronal alignment correction.
- CAS improves the precision and reduces variability in closed-wedge HTO procedures.
