Evidence map›Paper›PMID 35011960›Full record

ArticleJournal of clinical medicine2021

Comparison of Robotic and Conventional Unicompartmental Knee Arthroplasty Outcomes in Patients with Osteoarthritis: A Retrospective Cohort Study.

Christopher Wu, Nobuei Fukui, Yen-Kuang Lin, Ching-Yu Lee, Shih-Hsiang Chou, Tsung-Jen Huang, Jen-Yuh Chen, Meng-Huang Wu

Abstract read
In one paragraph

Article in Journal of clinical medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 6 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

14 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Drug-induced sleep endoscopy in obstructive sleep apnea: a systematic review and meta-analysis of sedative agents, monitoring methods, and administration techniques.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026
    Pooled it
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  4. Invasive or noninvasive? A systematic review and network meta-analysis of acupuncture and acupressure to treat cancer pain.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025
    Pooled it
  5. Surgical failure guided by DISE in patients with obstructive sleep apnea: a systematic review and meta-analysis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2024
    Pooled it
  6. Pooled it
  7. Article
  8. Review
  9. Prognosis and strategies for reoperation in recurrent spinal tumors: an average 5-Year follow-up retrospective study.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Article
  10. Short-term outcomes of robotic versus conventional unicompartmental knee arthroplasty: evidence from a national database.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2025
    Article
  11. Review
  12. Review
  13. Review
  14. Observational
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

8 authors.

Christopher WuCollege of Medicine, Taipei Medical University, Taipei 110, Taiwan.ORCID 0000-0001-7100-1623
Nobuei FukuiDepartment of Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan.ORCID 0000-0002-2415-1669
Yen-Kuang LinResearch Center of Statistics, College of Management, Taipei Medical University, Taipei 110, Taiwan.ORCID 0000-0002-7027-9508
Ching-Yu LeeDepartment of Orthopedics, Taipei Medical University Hospital, Taipei 110, Taiwan.
Shih-Hsiang ChouDepartment of Orthopedics, Kaoshiung Medical University Hospital, Kaoshiung 807, Taiwan.ORCID 0000-0002-3458-9939
Tsung-Jen HuangDepartment of Orthopedics, Taipei Medical University Hospital, Taipei 110, Taiwan.
Jen-Yuh ChenDepartment of Orthopedics, Taipei Medical University Hospital, Taipei 110, Taiwan.
Meng-Huang WuDepartment of Orthopedics, Taipei Medical University Hospital, Taipei 110, Taiwan.ORCID 0000-0003-1606-2444

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Robotic-arm-assisted unicompartmental knee arthroplasty (RUKA) was developed to increase the accuracy of bone alignment and implant positioning. This retrospective study explored whether RUKA has more favorable overall outcomes than conventional unicompartmental knee arthroplasty (CUKA). A total of 158 patients with medial compartment osteoarthritis were recruited, of which 85 had undergone RUKA with the Mako system and 73 had undergone CUKA. The accuracy of component positioning and bone anatomical alignment was compared using preoperative and postoperative radiograph. Clinical outcomes were evaluated using questionnaires, which the patients completed preoperatively and then postoperatively at six months, one year, and two years. In total, 52 patients from the RUKA group and 61 from the CUKA group were eligible for analysis. The preoperative health scores and Kellgren-Lawrence scores were higher in the RUKA group. RUKA exhibited higher implant positioning accuracy, thus providing a superior femoral implant angle, properly aligned implant placement, and a low rate of overhang. RUKA also achieved higher accuracy in bone anatomical alignment (tibial axis angle and anatomical axis angle) than CUKA, but surgical time was longer, and blood loss was greater. No significant differences were observed in the clinical outcomes of the two procedures.

Indexed as

osteoarthritisoutcomerobotic armunicompartmental knee arthroplasty

Identifiers

PMID35011960
PMCPMC8745819

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Registered trials

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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.