Evidence map›Paper›PMID 32537660›Full record

SynthesisArchives of orthopaedic and trauma surgery2020

Robotic-assisted total knee arthroplasty is comparable to conventional total knee arthroplasty: a meta-analysis and systematic review.

James Randolph Onggo, Jason Derry Onggo, Richard De Steiger, Raphael Hau

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Archives of orthopaedic and trauma surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers, 14 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 14 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

79 citing papers in PubMed, 14 syntheses or guidelines pooled it.

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  3. Continuous outcomes of robotic-assisted total knee arthroplasty trials are statistically fragile.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
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  7. Robotic-assisted versus conventional total knee arthroplasty: a systematic review and meta-analysis of randomized controlled trials.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
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  11. Complications and downsides of the robotic total knee arthroplasty: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
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  14. MAKO CT-based robotic arm-assisted system is a reliable procedure for total knee arthroplasty: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
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  19. [A prospective randomized controlled trial on the short-term effectiveness of domestic robot-assisted total knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021
    Trial
  20. Review

19 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

James Randolph OnggoDepartment of Orthopaedic Surgery, Box Hill Hospital, 8 Arnold Street, Box Hill, Melbourne, VIC, 3128, Australia. jamesonggo1993@hotmail.com.ORCID http://orcid.org/0000-0002-2372-7742
Jason Derry OnggoDepartment of Orthopaedic Surgery, Box Hill Hospital, 8 Arnold Street, Box Hill, Melbourne, VIC, 3128, Australia.
Richard De SteigerDepartment of Surgery Epworth Healthcare, University of Melbourne, University of Melbourne, Parkville, Melbourne, VIC, 3010, Australia.
Raphael HauDepartment of Orthopaedic Surgery, Box Hill Hospital, 8 Arnold Street, Box Hill, Melbourne, VIC, 3128, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTotal knee arthroplasty (TKA) is a successful procedure in managing end-stage arthritis when non-operative treatments fail. New technologies such as robotic TKA (rTKA) have been developed to improve the accuracy of prosthesis implantation. While short-term cohort studies on rTKA have shown excellent results, the evidence comparing between rTKA and conventional TKA (cTKA) is not yet well established. This meta-analysis aims to compare the efficacy and safety of rTKA versus cTKA in terms of clinical outcomes, radiographic results, complications, peri-operative parameters and costs.

methodsA multi-database search was performed according to PRISMA guidelines. Data from studies comparing between rTKA and cTKA were extracted and analyzed.

resultsEighteen studies were included in this review, consisting of 2234 rTKA and 4300 cTKA. Robotic TKA led to a more precise prosthesis implantation with significantly fewer outliers in the mechanical axis (p < 0.001), femoral coronal (p = 0.002) and tibial sagittal (p = 0.01) alignments. Only the Hospital for Special Surgery (HSS) (p < 0.001) score at final follow-up was significantly better in rTKA than cTKA. rTKA also had a lower mean blood loss (p < 0.001) despite a longer mean operation time (p = 0.006). There were no statistically significant difference in terms of other clinical outcome measures, range of motion and complications.

conclusionBoth rTKA and cTKA are reliable and safe to perform. However, rTKA is capable of achieving superior alignment in several axes, lower mean blood loss and this may lead to marginally better clinical outcomes than cTKA. EVIDENCE LEVEL: Level II, Meta-analysis of non-homogeneous studies.

Indexed as

Arthroplasty, Replacement, KneeRobotic Surgical ProceduresHumansOperative TimePostoperative ComplicationsRange of Motion, ArticularTreatment OutcomeConventionalOutcomesRobotic-assistedRobotsTotal knee arthroplastyTotal knee replacement

Identifiers

PMID32537660

What OpenQuestion holds

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Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.