Evidence map›Paper›PMID 38689270›Full record

Trial reportBMC musculoskeletal disorders2024

The learning curve of a novel seven-axis robot-assisted total hip arthroplasty system: a randomized controlled trial.

Haocheng Sun, Hanpeng Lu, Qiang Xiao, Zichuan Ding, Zeyu Luo, Zongke Zhou

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC musculoskeletal disorders, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

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  6. [Progress and future prospects of robot-assisted total hip arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Review
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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 1 country.

Haocheng SunDepartment of Orthopedics, West China Hospital, Orthopedic Research Institute, Sichuan University, Chengdu, China.
Hanpeng LuDepartment of Orthopedics, West China Hospital, Orthopedic Research Institute, Sichuan University, Chengdu, China.
Qiang XiaoDepartment of Orthopedics, Chengdu Second People's Hospital, Chengdu, China.
Zichuan DingDepartment of Orthopedics, West China Hospital, Orthopedic Research Institute, Sichuan University, Chengdu, China.
Zeyu LuoDepartment of Orthopedics, West China Hospital, Orthopedic Research Institute, Sichuan University, Chengdu, China. luozy@wchscu.cn.
Zongke ZhouDepartment of Orthopedics, West China Hospital, Orthopedic Research Institute, Sichuan University, Chengdu, China. zhouzongke@scu.edu.cn.
West China Hospital of Sichuan University · CNSichuan University · CNChengdu Second People's Hospital · CN

Funding

Clinical Research Incubation project of West China Hospital of Sichuan University 2023HXFH012National Natural Science Foundation of China U22A20280Regional Innovation & Cooperation Program of the Science &Technology Department of Sichuan Province 2022YFC2503104
6 · The paper itself

Abstract

bacgroundThe aim of this study was to assess the learning curve of a novel seven-axis robot-assisted total hip arthroplasty (RaTHA) system.

methodsA total of 59 patients who underwent unilateral total hip arthroplasty at our institution from June 2022 to September 2022 were prospectively included in the study. In this randomized controlled clinical trial, robot-assisted THA (RaTHA) and Conventional THA (CoTHA) were performed using cumulative sum (CUSUM) analysis to evaluate the learning curve of the RaTHA system. The demographic data, preopera1tive clinical data, duration of operation, postoperative Harris Hip Score (HHS), postoperative Western Ontario and McMaster Universities Arthritis Index (WOMAC) score, and duration of operation between the learning stage and the proficiency stage of the RaTHA group were compared between the two groups.

resultsThe average duration of operation of the RaTHA group was increased by 34.73 min compared with the CoTHA group (104.26 ± 19.33 vs. 69.53 ± 18.38 min, p < 0.01). The learning curve of the RaTHA system can be divided into learning stage and proficiency stage, and the former consists of the first 13 cases by CUSUM analysis. In the RaTHA group, the duration of operation decreased by 29.75 min in the proficiency stage compared to the learning stage (121.12 ± 12.84 vs.91.37 ± 12.92, p < 0.01).

conclusionsThis study demonstrated that the surgical team required a learning curve of 13 cases to become proficient using the RaTHA system. The duration of operation, total blood loss, and drainage gradually shortened (decreased) with the learning curve stage, and the differences were statistically significant.

trial registrationNumber: ChiCTR2200061630, Date: 29/06/2022.

Indexed as

Arthroplasty, Replacement, HipLearning CurveOperative TimeRobotic Surgical ProceduresAdultAgedFemaleHumansMaleMiddle AgedProspective StudiesTreatment OutcomeCumulative summationLearning curveProspective randomized controlled trialRobot assisted total hip arthroplasty

Identifiers

PMID38689270
PMCPMC11061987
OpenAlexW4396515320

What OpenQuestion holds

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LicenceCC BY
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.