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Published on: July 5, 2011
Systematic review of computer-navigated total knee arthroplasty
Luis A Zamora1, Karen J Humphreys, Amber M Watt
1Australian Safety and Efficacy Register of New Interventional Procedures - Surgical (ASERNIP-S), Royal Australasian College of Surgeons, Adelaide, South Australia, Australia.
ANZ Journal of Surgery
|September 19, 2012
Summary
Computer-navigated total knee arthroplasty (CNTKA) offers improved radiological alignment over conventional total knee arthroplasty (TKA). However, current evidence does not demonstrate significant clinical benefits for CNTKA, necessitating further long-term studies.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Radiology
Background:
- Conventional total knee arthroplasty (TKA) and computer-navigated total knee arthroplasty (CNTKA) employ distinct techniques for achieving optimal limb alignment.
- A systematic review was conducted to evaluate the safety and efficacy of CNTKA in comparison to conventional TKA.
Purpose of the Study:
- To systematically compare the safety and effectiveness of computer-navigated total knee arthroplasty (CNTKA) against conventional total knee arthroplasty (TKA).
Main Methods:
- A comprehensive systematic search of multiple databases was performed to identify relevant randomized controlled trials published up to August 2012.
- Study selection and data extraction were conducted independently by two reviewers according to a predefined protocol.
Main Results:
- Thirty randomized controlled trials were included in the analysis. Adverse events associated with CNTKA were predominantly minor and comparable to conventional TKA.
- Meta-analysis of thirteen trials revealed a statistically significant improvement in radiological alignment favoring CNTKA (OR 2.32, P < 0.00001).
- Clinical outcomes and long-term functional improvements were comparable between CNTKA and conventional TKA.
Conclusions:
- While CNTKA demonstrates superior radiological alignment, its translation into measurable clinical benefits remains uncertain.
- Further long-term randomized controlled trials are essential to ascertain if improved post-operative alignment with CNTKA leads to enhanced patient-related outcomes.