Evidence map›Paper›PMID 38717705›Full record

ArticleJournal of robotic surgery2024

Evaluating the cost of robotic-assisted total and unicompartmental knee arthroplasty.

Kate Alexander, Sascha Karunaratne, Verinder Sidhu, Brett Fritsch, Sanjeev Gupta, Mark Horsley, Maurice Guzman, Richard Boyle, Kate McBride, Daniel Steffens

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of robotic surgery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 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

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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

10 authors.

Kate AlexanderSurgical Outcomes Research Centre (SOuRCe), Royal Prince Alfred Hospital, PO Box M157 Camperdown, Sydney, NSW, 2050, Australia. Kate.Alexander4@health.nsw.gov.au.
Sascha KarunaratneSurgical Outcomes Research Centre (SOuRCe), Royal Prince Alfred Hospital, PO Box M157 Camperdown, Sydney, NSW, 2050, Australia.
Verinder SidhuOrthopaedic Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia.
Brett FritschOrthopaedic Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia.
Sanjeev GuptaOrthopaedic Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia.
Mark HorsleyOrthopaedic Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia.
Maurice GuzmanOrthopaedic Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia.
Richard BoyleOrthopaedic Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia.
Kate McBrideSurgical Outcomes Research Centre (SOuRCe), Royal Prince Alfred Hospital, PO Box M157 Camperdown, Sydney, NSW, 2050, Australia.
Daniel SteffensSurgical Outcomes Research Centre (SOuRCe), Royal Prince Alfred Hospital, PO Box M157 Camperdown, Sydney, NSW, 2050, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As uptake of robotic-assisted arthroplasty increases there is a need for economic evaluation of the implementation and ongoing costs associated with robotic surgery. The aims of this study were to describe the in-hospital cost of robotic-assisted total knee arthroplasty (RA-TKA) and robotic-assisted unicompartmental knee arthroplasty (RA-UKA) and determine the influence of patient characteristics and surgical outcomes on cost. This prospective cohort study included adult patients (≥ 18 years) undergoing primary unilateral RA-TKA and RA-UKA, at a tertiary hospital in Sydney between April 2017 and June 2021. Patient characteristics, surgical outcomes, and in-hospital cost variables were extracted from hospital medical records. Differences between outcomes for RA-TKA and RA-UKA were compared using independent sample t-tests. Logistic regression was performed to determine drivers of cost. Of the 308 robotic-assisted procedures, 247 were RA-TKA and 61 were RA-UKA. Surgical time, time in the operating room, and length of stay were significantly shorter in RA-UKA (p < 0.001); whereas RA-TKA patients were older (p = 0.002) and more likely to be discharged to in-patient rehabilitation (p = 0.009). Total in-hospital cost was significantly higher for RA-TKA cases (AU$18580.02 vs $13275.38; p < 0.001). Robotic system and maintenance cost per case was AU$3867.00 for TKA and AU$5008.77 for UKA. Patients born overseas and lower volume robotic surgeons were significantly associated with higher total cost of RA-UKA. Increasing age and male gender were significantly associated with higher total cost of RA-TKA. Total cost was significantly higher for RA-TKA than RA-UKA. Robotic system costs for RA-UKA are inflated by the software cost relative to the volume of cases compared with RA-TKA. Cost is an important consideration when evaluating long term benefits of robotic-assisted knee arthroplasty in future studies to provide evidence for the economic sustainability of this practice.

Indexed as

Arthroplasty, Replacement, KneeHospital CostsLength of StayRobotic Surgical ProceduresAgedFemaleHumansMaleMiddle AgedOperative TimeProspective StudiesTreatment OutcomeCostRobotic-assistedSurgical outcomesTotal knee arthroplastyUnicompartmental knee arthroplasty

Identifiers

PMID38717705

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.