Evidence map›Paper›PMID 33215101›Full record

ArticleBone & joint open2020

Robotic-assisted total knee arthroplasty demonstrates decreased postoperative pain and opioid usage compared to conventional total knee arthroplasty.

Samrath J Bhimani, Rohat Bhimani, Austin Smith, Christian Eccles, Langan Smith, Arthur Malkani

Abstract read
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In one paragraph

Article in Bone & joint open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 7 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

47 citing papers in PubMed, 7 syntheses or guidelines pooled it.

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  5. 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
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  7. 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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  10. [A multicenter randomized controlled trial of domestic robot-assisted and conventional total knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2023
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  14. Risk of periprosthetic joint infection within 1 year following robotic-assisted versus conventional primary total knee arthroplasty: a propensity-score-matched cohort study.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2026
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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

6 authors.

Samrath J BhimaniDepartment of Orthopaedic Surgery, University of Louisville, Louisville, Kentucky, USA.
Rohat BhimaniFeinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
Austin SmithDepartment of Orthopaedic Surgery, University of Louisville, Louisville, Kentucky, USA.
Christian EcclesDepartment of Orthopaedic Surgery, University of Louisville, Louisville, Kentucky, USA.
Langan SmithU of L Health, UL Physicians - Orthopedic Group, Louisville, Kentucky, USA.
Arthur MalkaniUniversity of Louisville, Department of Orthopaedic Surgery, Louisville, Kentucky, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsRobotic-assisted total knee arthroplasty (RA-TKA) has been introduced to provide accurate bone cuts and help achieve the target knee alignment, along with symmetric gap balancing. The purpose of this study was to determine if any early clinical benefits could be realized following TKA using robotic-assisted technology.

methodsIn all, 140 consecutive patients undergoing RA-TKA and 127 consecutive patients undergoing conventional TKA with minimum six-week follow-up were reviewed. Differences in visual analogue scores (VAS) for pain at rest and with activity, postoperative opiate usage, and length of stay (LOS) between the RA-TKA and conventional TKA groups were compared.

resultsPatients undergoing RA-TKA had lower average VAS pain scores at rest (p = 0.001) and with activity (p = 0.03) at two weeks following the index procedure. At the six-week interval, the RA-TKA group had lower VAS pain scores with rest (p = 0.03) and with activity (p = 0.02), and required 3.2 mg less morphine equivalents per day relative to the conventional group (p < 0.001). At six weeks, a significantly greater number of patients in the RA-TKA group were free of opioid use compared to the conventional TKA group; 70.7% vs 57.0% (p = 0.02). Patients in the RA-TKA group had a shorter LOS; 1.9 days versus 2.3 days (p < 0.001), and also had a greater percentage of patient discharged on postoperative day one; 41.3% vs 20.5% (p < 0.001).

conclusionPatients undergoing RA-TKA had lower pain levels at both rest and with activity, required less opioid medication, and had a shorter LOS.

Indexed as

Length of stayPostoperative opioid usagePostoperative painRobotic-assisted TKA

Identifiers

PMID33215101
PMCPMC7659658

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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.