Evidence map›Paper›PMID 34496974›Full record

ArticleKnee surgery & related research2021

No difference in long-term functional outcomes or survivorship after total knee arthroplasty with or without computer navigation: a 17-year survivorship analysis.

Ng Jonathan Patrick, Lau Lawrence Chun Man, Chau Wai-Wang, Ong Michael Tim-Yun, Cheung Kin Wing, Chiu Kwok Hing, Chung Kwong Yin, Ho Kevin Ki-Wai

Open access · diamondAbstract read
In one paragraph

Article in Knee surgery & related research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
4.0field-weighted citation impact, top 5% of its field
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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Use of intraoperative technology in total knee arthroplasty is not associated with reductions in postoperative pain.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Pooled it
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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

8 authors at 2 institutions in 2 countries.

Ng Jonathan PatrickDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
Lau Lawrence Chun ManDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
Chau Wai-WangDepartment of Orthopaedics and Traumatology, Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.ORCID http://orcid.org/0000-0002-6973-1915
Ong Michael Tim-YunDepartment of Orthopaedics and Traumatology, Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
Cheung Kin WingDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
Chiu Kwok HingDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
Chung Kwong YinDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
Ho Kevin Ki-WaiDepartment of Orthopaedics and Traumatology, Chinese University of Hong Kong, Shatin, Hong Kong SAR, China. kevinho@cuhk.edu.hk.ORCID http://orcid.org/0000-0001-8647-8475
Prince of Wales Hospital · CNChinese University of Hong Kong · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe literature comparing the long-term outcomes and survivorship of computer navigation-assisted and conventional total knee replacement (TKR) is sparse. Moreover, of the available comparative studies with follow-up duration of more than 10 years, the results seem to be conflicting. The purpose of this long-term study was to compare the clinical and radiological outcomes, and implant survivorship, of TKR performed with and without computer navigation.

methodsWe retrospectively compared the results of 49 computer-navigated TKRs and 139 conventional TKRs. The mean age of the patients was 67.9 (range 52-81) years for the navigation group and 67.1 (range 50-80) years for the conventional TKR group. The mean duration of follow-up for the conventional and navigation TKR groups was 12.9 and 13.2 years, respectively. Clinical and radiographic follow-up examinations of the patients were performed at 2 weeks, 1 month, 3 months and 6 months post-operatively, and at 1-year intervals thereafter.

resultsThere were no significant differences in the post-operative Knee Society knee and function score between the two groups. The mean overall deviation from neutral alignment and the radiological outliers were significantly higher in the conventional TKR group. The overall survival rates at 17 years were 92.9% for the navigation group and 95.6% for the conventional TKR group (p = 0.62).

conclusionsNavigated TKR resulted in fewer radiological outliers; however, this did not translate to better long-term functional outcomes or implant survival.

Indexed as

Computer-assisted navigation surgeryOutcomesSurvivorshipTotal knee replacement

Identifiers

PMID34496974
PMCPMC8425118
OpenAlexW3196619562

What OpenQuestion holds

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LicenceCC BY
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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.