Similar radiological results with accelerometer-based navigation versus conventional technique in total knee arthroplasty

Moo, Ing How; Chen, Jerry; Chau, Dickson Hong Him; Tan, See Wei; Lau, Adrian Cheng Kiang; Teo, Yee Sze

doi:10.1177/2309499018772374

Cited by 20 publications

(38 citation statements)

References 33 publications

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“…[8][9][10][15][16][17][18][19][20][21][22][23][24] Among the included studies, six were RCTs, 8,10,17,19,21,23 one was a prospective study, 16 and six were retrospective studies. 9,15,18,20,22,24 The present meta-analysis analyzed 1,454 patients with 1,551 TKAs (mean sample size, 119.31 TKAs per study). None of the included studies contained revision or failure cases.…”

Section: Search Resultsmentioning

confidence: 99%

“…Eight studies with nine groups reported a tibial component alignment out of AE3 degrees [8][9][10]15,16,19,22,24 ; the pooled result indicated that PAD was better than CON with significant differences (OR, 0.56; 95% CI, 0.33-0.93; p ¼ 0.02; outlier percentage, PAD/CON ¼ 5.36%/10.00%) (►Fig. 2A).…”

Section: Alignment Outliers Out Of Ae2 or Ae3 Degreesmentioning

confidence: 99%

“…2C). [8][9][10]15,[22][23][24] Two studies reported the tibial component posterior slope out of AE2 degrees. 10,21 After pooling the results, the two techniques were found to be comparable (OR, 0.95; 95% CI, 0.39-2.32; p ¼ 0.91; outlier percentage: PAD/ CON ¼ 7.94%/8.33%) (►Fig.…”

Section: Alignment Outliers Out Of Ae2 or Ae3 Degreesmentioning

confidence: 99%

“…Nonrandomized studies The results of femoral coronal angles were also analyzed. Ten studies with 11 groups reported a femoral coronal angle out of AE3 degrees, [8][9][10][15][16][17][18][19]22,24 and the result of the analysis revealed that the PAD group was much more accurate than the CON group (OR, 0.30; 95% CI, 0.14-0.64; p ¼ 0.002; hetero-geneity was found and random-effects model was used; outlier percentage: PAD/CON ¼ 5.32%/15.98%) (►Fig. 3A).…”

Section: Alignment Outliers Out Of Ae2 or Ae3 Degreesmentioning

confidence: 99%

“…8 However, Moo et al reported that PAD and CON were comparable in the alignments of these outliers. 9 The operative times of PADs also exhibited incongruity in different studies. 8,10 In addition, the association between alignments and clinical outcomes remains inconclusive.…”

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confidence: 99%

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Efficacy of Portable Accelerometer-Based Navigation Devices versus Conventional Guides in Total Knee Arthroplasty: A Meta-analysis

Sun

Wang

et al. 2019

J Knee Surg

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Various studies have provided different conclusions regarding which component's alignment can be actually improved by a novel portable accelerometer-based navigation device (PAD) compared with the conventional guide (CON); the operative times and clinical outcomes reported by these studies also exhibited incongruity. Thus, this meta-analysis was conducted to evaluate the efficacy of PADs in total knee arthroplasty (TKA). The Web of Science, EMBASE, PubMed, MEDLINE, and Cochrane Library databases were systematically searched. Studies published till July 2018 and comparing PAD with CON in treatment with TKA were identified. Sixteen studies in which 1,551 TKAs were reported were included. Results showed that PAD was significantly superior to CON in reducing tibial component alignment out of ±3 degrees, femoral coronal angle out of ±3 degrees, and overall mechanical alignment out of ±3 degrees. PAD can also help obtain a more accurate result of femoral coronal angle (degree); however, it requires a longer operative time than the CON group. The two groups were comparable in tibial component alignment out of ±2 degrees, tibial component posterior slope out of ±3 degrees, tibial component posterior slope out of ±2 degrees, femoral coronal angle out of ±2 degrees, femoral sagittal angle out of ±3 degrees, femoral sagittal angle out of ±2 degrees, tibial component alignment (degree), tibial component posterior slope (degree), femoral sagittal angle (degree), overall mechanical alignment (degree), blood loss, Knee Society knee score, Knee Society function score, Oxford Knee Score, Short Form-36 physical component score, Short Form-36 mental component score, and range of motion. In conclusion, compared with CON, PAD can help improve the femoral coronal angle as well as decrease the outliers out of ±3 degrees in femoral/tibial coronal angles and overall mechanical alignment. However, PAD did not show significant advantages in tibial and femoral component sagittal angles out of ±3 degrees, various outliers of ±2 degrees, most mean values of component alignments, operative time, and various functional or satisfactory scores.

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Section: Search Resultsmentioning

confidence: 99%

Section: Alignment Outliers Out Of Ae2 or Ae3 Degreesmentioning

confidence: 99%

Section: Alignment Outliers Out Of Ae2 or Ae3 Degreesmentioning

confidence: 99%

Section: Alignment Outliers Out Of Ae2 or Ae3 Degreesmentioning

confidence: 99%

mentioning

confidence: 99%

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Efficacy of Portable Accelerometer-Based Navigation Devices versus Conventional Guides in Total Knee Arthroplasty: A Meta-analysis

Sun

Wang

et al. 2019

J Knee Surg

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The Science Behind Computer-Assisted Surgery of the Knee

et al. 2022

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Accuracy of tibial component placement in unicompartmental knee arthroplasty performed using an accelerometer-based portable navigation system

Matsui

Fukuoka

Masuda

et al. 2019

Knee Surg Sports Traumatol Arthrosc

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Purpose There is a need for new devices to improve the accuracy of implantation in unicompartmental knee arthroplasties (UKAs). The accelerometer-based portable navigation system is expected to improve this accuracy. This study aimed to compare the accuracy of UKAs performed by the portable navigation system with that of the conventional method, and to investigate whether the portable navigation system can complement the surgeon's experience. Methods The study comprised of 80 Oxford UKAs. Knees were divided into two groups based on the method of tibial osteotomy: the conventional group (37 UKAs performed by an experienced surgeon using the extra-medullary guide) and the portable navigation group (43 UKAs performed by 2 unaccustomed surgeons using the navigation system). The absolute error from the target angle on the coronal and sagittal plane was measured on whole lower leg X-ray. The incidence of outliers (> 3°) was compared between the groups using Fisher's exact probability test. ResultsThe incidences of outliers on the coronal plane were 41.0% (15 of 37 knees) in the conventional group and 9.3% (4 of 43 knees) in the portable navigation group (p < 0.0001). The incidences of outliers on the sagittal plane were 13.5% (5 of 37 knees) in the conventional group and 14.0% (6 of 43 knees) in the portable navigation group (p = 0.3772). Conclusion This is the irst report on the usefulness of an accelerometer-based portable navigation system in UKA. The use of this system improves the accuracy of implantation of the tibial component beyond the experience of the surgeon. Level of evidence Retrospective comparative study, Level III

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Similar radiological results with accelerometer-based navigation versus conventional technique in total knee arthroplasty

Abstract: Our article showed that iASSIST was safe and remains a useful tool to restore mechanical axis. However, our data demonstrated no difference in lower limb alignment and component placement between the TKA that used accelerometer-based system and those that underwent conventional method.

Cited by 20 publications

References 33 publications

Efficacy of Portable Accelerometer-Based Navigation Devices versus Conventional Guides in Total Knee Arthroplasty: A Meta-analysis

Efficacy of Portable Accelerometer-Based Navigation Devices versus Conventional Guides in Total Knee Arthroplasty: A Meta-analysis

The Science Behind Computer-Assisted Surgery of the Knee

Accuracy of tibial component placement in unicompartmental knee arthroplasty performed using an accelerometer-based portable navigation system

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