Comparison of Precision between Optical and Electromagnetic Navigation Systems in Total Knee Arthroplasty
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purpose: The purpose of this study is to compare and analyze the precision of optical and electromagnetic navigation systems in total knee arthroplasty (TKA). materials and methods: We retrospectively reviewed 60 patients who underwent TKA using an optical navigation system and 60 patients who underwent TKA using an electromagnetic navigation system from June 2010 to March 2012. The mechanical axis that was measured on preoperative radiographs and by the intraoperative navigation systems were compared between the groups. The postoperative positions of the femoral and tibial components in the sagittal and coronal plane were assessed. results: The difference of the mechanical axis measured on the preoperative radiograph and by the intraoperative navigation systems was 0.6 degrees more varus in the electromagnetic navigation system group than in the optical navigation system group, but showed no statistically significant difference between the two groups (p>0.05). The positions of the femoral and tibial components in the sagittal and coronal planes on the postoperative radiographs also showed no statistically significant difference between the two groups (p>0.05).conclusions: In TKA, both optical and electromagnetic navigation systems showed high accuracy and reproducibility, and the measurements from the postoperative radiographs showed no significant difference between the two groups.
Abstract
purpose: The purpose of this study is to compare and analyze the precision of optical and electromagnetic navigation systems in total knee arthroplasty (TKA). materials and methods: We retrospectively reviewed 60 patients who underwent TKA using an optical navigation system and 60 patients who underwent TKA using an electromagnetic navigation system from June 2010 to March 2012. The mechanical axis that was measured on preoperative radiographs and by the intraoperative navigation systems were compared between the groups. The postoperative positions of the femoral and tibial components in the sagittal and coronal plane were assessed. results: The difference of the mechanical axis measured on the preoperative radiograph and by the intraoperative navigation systems was 0.6 degrees more varus in the electromagnetic navigation system group than in the optical navigation system group, but showed no statistically significant difference between the two groups (p>0.05). The positions of the femoral and tibial components in the sagittal and coronal planes on the postoperative radiographs also showed no statistically significant difference between the two groups (p>0.05).conclusions: In TKA, both optical and electromagnetic navigation systems showed high accuracy and reproducibility, and the measurements from the postoperative radiographs showed no significant difference between the two groups.
참고문헌 (12)
- Lotke PA, "Influence of positioning of prosthesis in total knee replacement", J Bone Joint Surg Am, 59, pp.77~79 (1977)
- Moreland JR, "Mechanisms of failure in total knee arthroplasty", Orthop Relat Res, 226, pp.49~64 (1988)
- Ritter MA, "Postoperative alignment of total knee replacement. Its effect on survival", Clin Orthop Relat Res, 299, pp.153~156 (1994)
- Amin DV, "Ultrasound registration of the bone surface for surgical navigation", Comput Aided Surg, 8, pp.1~16 (2003)
- Pitto RP, "Accuracy of a computer-assisted navigation system for total knee replacement", J Bone Joint Surg Br, 88, pp.601~605 (2006)
- Song EK, "Accuracy of navigation:a comparative study of infrared optical and electromagnetic navigation", Orthopedics, 31(10) (2008)
- Chen TK, "A system for ultrasound-guided computer-assisted orthopaedic surgery", Comput Aided Surg, 10, pp.281~292 (2005)
- Hummel J, "Evaluation of a new electromagnetic tracking system using a standardized assessment protocol", Phys Med Biol, 51, pp.N205~N210 (2006)
- Khadem R, "Comparative tracking error analysis of five different optical tracking systems", Comput Aided Surg, 5, pp.98~107 (2000)
- Schicho K, "Stability of miniature electromagnetic tracking systems", Phys Med Biol, 50, pp.2089~2098 (2005)
- Stiehl JB, "Six sigma analysis of computer-assisted surgery tracking protocols in TKA", Clin Orthop Relat Res, 464, pp.105~110 (2007)
- Yau WP, "Intraobserver errors in obtaining visually selected anatomic landmarks during registration process in nonimage-based navigationassisted total knee arthroplasty : a cadaveric experiment", J Arthroplasty, 20, pp.591~601 (2005)