Evidence map›Paper›PMID 32435451›Full record

ArticleBone & joint research2020

Robotic-assisted unicompartmental knee arthroplasty has a greater early functional outcome when compared to manual total knee arthroplasty for isolated medial compartment arthritis.

N D Clement, A Bell, P Simpson, G Macpherson, J T Patton, D F Hamilton

Registry-linked trialOpen access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Bone & joint research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05290818 (Total Versus Robotic Assisted Unicompartmental Knee Replacement), which is not on this map. Cited by 25 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 3 pooled it
6.7field-weighted citation impact, top 2% 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.

NCT05290818 narecruitingnot on this mapstarted 2024, after this paper: background citation

Total Versus Robotic Assisted Unicompartmental Knee Replacement (TRAKER) for Medial Compartment Osteoarthritis: Randomised Controlled Trial

TypeinterventionalSponsorNHS LothianRan2024 to 2027Enrolled159ConditionsOsteo Arthritis Knee, Arthritis Knee, Arthropathy of KneeArmsMAKO™ Partial Knee Arthroplasty, Triathlon (Stryker) Total Knee Arthroplasty
3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 3 syntheses or guidelines pooled it, 47 citations in OpenAlex.

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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 at 3 institutions in 2 countries.

N D ClementDepartment of Orthopaedics and Trauma, The Royal Infirmary of Edinburgh, Edinburgh, UK.
A BellSpire Murrayfield Hospital, Edinburgh, UK.
P SimpsonDepartment of Orthopaedics and Trauma, The Royal Infirmary of Edinburgh, Edinburgh, UK. Spire Murrayfield Hospital, Edinburgh, UK.
G MacphersonDepartment of Orthopaedics and Trauma, The Royal Infirmary of Edinburgh, Edinburgh, UK. Spire Murrayfield Hospital, Edinburgh, UK.
J T PattonDepartment of Orthopaedics and Trauma, The Royal Infirmary of Edinburgh, Edinburgh, UK. Spire Murrayfield Hospital, Edinburgh, UK.
D F HamiltonDepartment of Orthopaedics, University of Edinburgh, University of Edinburgh, Edinburgh, UK.
Edinburgh Royal Infirmary · GBUnited States Bone and Joint Initiative · USUniversity of Edinburgh · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe primary aim of the study was to compare the knee-specific functional outcome of robotic unicompartmental knee arthroplasty (rUKA) with manual total knee arthroplasty (mTKA) for the management of isolated medial compartment osteoarthritis. Secondary aims were to compare length of hospital stay, general health improvement, and satisfaction between rUKA and mTKA.

methodsA powered (1:3 ratio) cohort study was performed. A total of 30 patients undergoing rUKA were propensity score matched to 90 patients undergoing mTKA for isolated medial compartment arthritis. Patients were matched for age, sex, body mass index (BMI), and preoperative function. The Oxford Knee Score (OKS) and EuroQol five-dimension questionnaire (EQ-5D) were collected preoperatively and six months postoperatively. The Forgotten Joint Score (FJS) and patient satisfaction were collected six months postoperatively. Length of hospital stay was also recorded.

resultsThere were no significant differences in the preoperative demographics (p ⩾ 0.150) or function (p ⩾ 0.230) between the groups. The six-month OKS was significantly greater in the rUKA group when compared with the mTKA group (difference 7.7, p < 0.001). There was also a greater six-month postoperative EQ-5D (difference 0.148, p = 0.002) and FJS (difference 24.2, p < 0.001) for the rUKA when compared to the mTKA. No patient was dissatisfied in the rUKA group and five (6%) were dissatisfied in the mTKA, but this was not significant (p = 0.210). Length of stay was significantly (p < 0.001) shorter in the rUKA group (median two days, interquartile range (IQR) 1 to 3) compared to the mTKA (median four days, IQR 3 to 5).

conclusionPatients with isolated medial compartment arthritis had a greater knee-specific functional outcome and generic health with a shorter length of hospital stay after rUKA when compared to mTKA.Cite this article:

Indexed as

ArthroplastyKneeMedialPartialRoboticTotal

Identifiers

PMID32435451
PMCPMC7229306
OpenAlexW3000127602

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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.