Computer-Navigated Versus Conventional Total Knee Arthroplasty

Kim, Young Hoo; Park, Jang Won; Kim, Jun Shik

doi:10.2106/jbjs.l.00142

Cited by 128 publications

(145 citation statements)

References 29 publications

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“…The results of this study confirm those that have shown no statistically significant difference in implant alignment between CATKR and JATKR [18][19][20], and as such produces further evidence that the routine use of navigation is not required to improve either implant positioning or functional outcome in patients with knee arthritis.…”

Section: Discussionsupporting

confidence: 86%

“…Multiple studies have assessed the accuracy of computer assisted procedures over the traditional jig-assisted method in improving component alignment with varying results [17][18][19][20][21]. The results of this study confirm those that have shown no statistically significant difference in implant alignment between CATKR and JATKR [18][19][20], and as such produces further evidence that the routine use of navigation is not required to improve either implant positioning or functional outcome in patients with knee arthritis.…”

Section: Discussionsupporting

confidence: 69%

“…Other studies have suggested that critical axial alignment may not be essential to produce good clinical results and early results show little clinical difference or implant survival between the two groups [18,19]. More recently, medium-term results comparing computer-assisted total knee arthroplasty (CATKR) to traditional jig-assisted total knee arthroplasty (JATKR) have shown little difference between the two groups, with outcome scores, survival and patient preference being similar [20,21]. Computer-assisted surgery has however been shown to take longer than JATKR with an average increase of 13-35 minutes [14,15,17,18,22] as well as incurring increased costs and requiring further training with a resultant early learning curve.…”

Section: Introductionmentioning

confidence: 99%

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Does computer-assisted total knee arthroplasty improve the overall component position and patient function?

Allen

Hooper

Oram

et al. 2013

International Orthopaedics (SICOT)

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Purpose There remains controversy as to whether computernavigated total knee replacement (TKR) improves the overall prosthesis alignment and patient function. The aim of this study was to determine whether computer-assisted total knee arthroplasty provides superior prosthesis positioning when compared to a conventional jig-assisted total knee replacement and whether this affected the functional outcome. Methods This prospective, randomised controlled study compared computer navigated and conventional jig-assisted total knee replacement in 37 patients who underwent bilateral TKR. A quantitative assessment of the spatial positioning of the implant in the 74 total knee replacements was determined using a low-dose dual-beam CT scanning technique. This resulted in six parameters of alignment that were compared. Functional outcomes using the high activity arthroplasty score and Knee Society score were assessed pre-operatively, postoperatively, at three years and at five years. Patients also indicated which knee they felt was subjectively the best. Results There was no statistically significant difference in the prosthesis alignment between both groups and the number of outliers was not decreased with navigation. All function scores improved from pre-operative to postoperative but there was no statistically significant difference between the groups at five years. At five years, 40.6 % of patients thought their jigassisted knee was the better knee compared with 21.9 % their computer assisted knee and 37.5 % of patients who felt they were the same. Conclusion Computer-assisted implantation of total knee replacements does not offer a significant advantage in prosthesis alignment. There was no difference in functional outcome or subjective "best knee" between the computer-assisted or jig-assisted knee.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

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Does computer-assisted total knee arthroplasty improve the overall component position and patient function?

Allen

Hooper

Oram

et al. 2013

International Orthopaedics (SICOT)

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“…A vascular lesions during tracker placement have been described as rare complication [17]. Previous 5-year results following computernavigated TKA have shown no improvement in function or clinical knee score measurements in comparison with conventional TKA [18,21,24,26,29,33]. However, long-term [25] came to the conclusion that the use of a navigation system with measured resection TKA can help optimise coronal stability and parallel component position.…”

Section: Discussionmentioning

confidence: 99%

Computer-assisted navigation is beneficial both in primary and revision surgery with modular rotating-hinge knee arthroplasty

Ochs

Schreiner

Zwart

et al. 2014

Knee Surg Sports Traumatol Arthrosc

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“…1,2 An unusual error in displaying the numerical measurements that was encountered in the middle of the surgery, following which how the error was rectified is presented in this study. It had also been tried to trace out the possible cause of error that could be attributed to the numerical mismatch which was encountered during the surgery to avoid future recurrence.…”

Section: Introductionmentioning

confidence: 91%

A numerical misinterpretation in the computer screen during middle of the image free navigation assisted knee replacement-a dilemma of what to do next?

Selvanayagam¹,

Pfluger²

2017

Int J Res Med Sci

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Misinterpretation can occur during any step of navigation system. It is not only a dilemma for the orthopaedic surgeons on how to proceed further in such instances, but also a challenging situation to take a right call. We report here an unusual error encountered in image free Orthopilot navigation system during knee replacement surgery. A gross numerical measurement error occurred in the computer screen while femoral planning step in the tibia first technique, following which a dilemma persisted on how to proceed further. The system was reverted backwards, and the procedure was initiated again right from the beginning of the registration of bony landmarks, followed by completion of all other consecutive steps with the help of navigation system. The end result of the surgery was achieved at an accurate neutral mechanical axis with 5 degrees of maximum possible extension.

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Computer-Navigated Versus Conventional Total Knee Arthroplasty

Abstract: Our data demonstrated no difference in clinical function or alignment and survivorship of the components between the knees that underwent computer-navigated total knee arthroplasty and those that underwent conventional total knee arthroplasty.

Cited by 128 publications

References 29 publications

Does computer-assisted total knee arthroplasty improve the overall component position and patient function?

Does computer-assisted total knee arthroplasty improve the overall component position and patient function?

Computer-assisted navigation is beneficial both in primary and revision surgery with modular rotating-hinge knee arthroplasty

A numerical misinterpretation in the computer screen during middle of the image free navigation assisted knee replacement-a dilemma of what to do next?

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