Evidence map›Paper›PMID 39380017›Full record

ArticleJournal of orthopaedic surgery and research2024

Robotic-assisted total hip arthroplasty outperforms manual technique in obese and overweight patients: a prospective comparative study.

Chaoqun Yu, Zian Zhang, Chang Liu, Zhenchao Huang, Xinzhe Lu, Yusi Gao, Haining Zhang

Abstract readComparative Study
In one paragraph

Article in Journal of orthopaedic surgery and research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Implementation of Robotic-Assisted Procedure for Total Hip Arthroplasty Is Not Economical in a High-Volume Orthopaedic Facility.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026
    Article
  4. Article
  5. Article
  6. Review
  7. Review
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

7 authors.

Chaoqun Yu *Department of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Zian Zhang *Department of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Chang LiuDepartment of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Zhenchao HuangDepartment of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Xinzhe LuDepartment of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Yusi GaoOperating Room, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Haining ZhangDepartment of Joint Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China. zhanghaining1976@126.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWith the increasing prevalence of obesity, there is growing awareness of the impact of overweight and obesity on total hip arthroplasty (THA). Research exploring the accuracy of acetabular component orientation in THA between robotic-assisted and manual techniques across different BMI categories is insufficient.

methodsThis prospective study evaluated 221 patients who underwent THA with a Robotic Interactive Orthopaedic Arm system and 252 patients who underwent manual THA between March 2022 and January 2024. The patients were divided into four groups according to their BMI. We analysed whether there were differences in the accuracy of acetabular component positioning between robotic-assisted THA and manual THA across different BMI categories.

resultsIn the overweight group, robotic-assisted THA achieved a significantly higher rate of abductions within the target range (73/6) than manual THA (62/28) (p = 0.000). Both abductions and anteversions within the target range were also significantly more frequent in the robotic-assisted THA group (69/10) than in the manual THA group (56/34) (p = 0.000). Among the obese patients, robotic-assisted THA showed a perfect record for anteversions within the target range (29/0), markedly outperforming manual THA (39/6) (p = 0.040).

conclusionIn the overweight (24 kg/m² ≤ BMI < 28 kg/m²) and obese (BMI ≥ 28 kg/m²) groups, robotic-assisted THA demonstrates significantly greater accuracy in acetabular component positioning compared to manual THA. This indicates that robotic-assisted technology may provide a more precise positioning of the acetabular component in overweight and obese patients.

Indexed as

Arthroplasty, Replacement, HipObesityOverweightRobotic Surgical ProceduresAcetabulumAdultAgedBody Mass IndexFemaleHumansMaleMiddle AgedProspective StudiesAcetabular component positioningBody mass indexObesityOverweightRobotic-assisted total hip arthroplasty

Identifiers

PMID39380017
PMCPMC11463081

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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.