Navigation knee replacement

Dattani, Rupen; Patnaik, Surendra; Kantak, Avadhoot; Tselentakis, Georgis

doi:10.1007/s00264-008-0671-3

Cited by 29 publications

(17 citation statements)

References 47 publications

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“…Although there are many studies in the literature with good levels of evidence proving that navigation-assisted surgery has greater precision for obtaining the desired alignment for the lower limb (8,(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31) , it is still not possible to demonstrate gains in the clinical results or in the longevity of implants, despite some favorable studies (12,14,25,26,(32)(33)(34)(35)(36)(37)(38)(39)(40) . Although there is some controversy, there is evidenced of possible parallel benefits relating to a lower thromboembolism rate (41)(42)(43) and a lower level of bleeding (11,(44)(45)(46)(47) with navigation.…”

Section: Navigation Systemsmentioning

confidence: 99%

Navegação na artroplastia total do joelho

Albuquerque¹

2011

Rev. bras. ortop.

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Section: Navigation Systemsmentioning

confidence: 99%

Navegação na artroplastia total do joelho

Albuquerque¹

2011

Rev. bras. ortop.

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“…Total knee arthroplasty (TKA) is a common, successful and safe surgical treatment for end-stage osteoarthritis of the knee that achieves a high percentage of satisfied patients [1,2]. The Anatomic Graduated Component (AGC) (Biomet, Inc., Warsaw, IN, USA) system was originally introduced in 1983.…”

Section: Introductionmentioning

confidence: 99%

Validity of published outcome data concerning Anatomic Graduated Component total knee arthroplasty: a structured literature review including arthroplasty register data

Schuh

Dorninger

Agreiter

et al. 2011

International Orthopaedics (SICOT)

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Purpose Total knee arthroplasty (TKA) as a treatment for end-stage osteoarthritis of the knee shows good results in terms of patient satisfaction. For the assessment of outcome and revision rate after total joint arthroplasty, there are two major data sources: clinical studies and national arthroplasty registers. The purpose of this study was to analyse the outcome of Anatomic Graduated Component (AGC) TKA reported in clinical studies and to perform a comparison with the outcome reported by national arthroplasty registers. Methods A systematic literature review was performed using standardised methodology in order to determine the outcome and revision rate of AGC TKA. In a comprehensive meta-analysis of clinical studies and worldwide register results we examined the quality of the basic data and the occurrence and influence of potential bias factors. Confidence intervals were calculated to determine the statistical significance of differences. Results We found significant differences as regards the revision rate measured in revisions per 100 observed component years. Compared to worldwide register data it turned out to be significantly lower in clinical studies published by the implant development team. Actually, they reported a revision rate of 0.18 revisions per 100 observed component years, whereas annual reports of national arthroplasty registers report 0.74 revisions per 100 observed component years. A comparison of the results from national arthroplasty registers of different countries revealed a significantly higher revision rate for Denmark in relation to worldwide register data. Conclusions A conventional meta-analysis of clinical studies is affected by the influence of the development team and therefore subject to bias. For the assessment of outcome arthroplasty register data should be rated as superior and, being used as reference data for the detection of potential bias factors in the clinical literature, could make an essential contribution to the quality of scientific meta-analysis.

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“…It is also assumed that computer navigation may improve implant survival, as clinical studies indicate an increased incidence of revision if TKA prostheses are implanted with an axis deviation of more than 3 varus/valgus [3][4][5]. However, critics emphasize that, because the technology is still quite new, no long-term results concerning implant survival and computer navigation are yet available [6][7][8]. In addition, they highlight two disadvantages of computer navigation: First, navigation is associated with additional costs, calculated to be 300-450 E per operation [1,9,10].…”

Section: Introductionmentioning

confidence: 99%

Displays mounted on cutting blocks reduce the learning curve in navigated total knee arthroplasty

Schnurr

Eysel

König

2011

Computer Aided Surgery

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The use of computer navigation in total knee arthroplasty (TKA) improves the implant alignment but increases the operation time. Studies have shown that the operation time is further prolonged due to the surgeon's learning curve, and longer operation times have been associated with higher morbidity risks. It has been our hypothesis that an improvement in the human-machine interface might reduce the time required during the learning curve. Accordingly, we asked whether the use of navigation devices with a display fixed on the surgical instruments would reduce the operation time in navigated TKAs performed by navigation beginners.Thirty medical students were randomized and used two navigation devices in rotation: these were the Kolibri Õ device with an external display and the Dash Õ device with a display that was fixed on the cutting blocks. The time for adjustment of the tibial and femoral cutting blocks on knee models while using these devices was measured.A significant time reduction was demonstration when the Dash Õ device was used: The time reduction was 21% for the tibial block (p ¼ 0.007), 40% for the femoral block (p < 0.001), and 32% for the whole procedure (p < 0.001).The integrated display, fixed on surgical instruments in a manner similar to a spirit level, seems to be more user-friendly for navigation beginners. Hence, unproductive time losses during the learning curve may be diminished.

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Navigation knee replacement

Cited by 29 publications

References 47 publications

Navegação na artroplastia total do joelho

Navegação na artroplastia total do joelho

Validity of published outcome data concerning Anatomic Graduated Component total knee arthroplasty: a structured literature review including arthroplasty register data

Displays mounted on cutting blocks reduce the learning curve in navigated total knee arthroplasty

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