Evidence map›Paper›PMID 39931151›Full record

ReviewJournal of experimental orthopaedics2025

Recurrence of arthroscopic treatment of pigmented villonodular synovitis of the knee: A systematic review and meta-analysis.

Sohrab Keyhani, Mehran Soleymanha, Fardis Vosoughi, Ali Nikibakhsh, Ervin Zadgari, Maryam Mousavi, Robert F LaPrade

Abstract readReview
In one paragraph

Review in Journal of experimental orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. 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.

Sohrab KeyhaniBone, Joint, and Related Tissues Research Center Akhtar Orthopedic Training and Research Hospital, Shahid Beheshti University of Medical Sciences Tehran Iran.ORCID 0000-0002-4455-5214
Mehran SoleymanhaDepartment of Orthopaedic, Orthopaedic Research Center, Poursina Hospital, School of Medicine Guilan University of Medical Sciences Rasht Iran.ORCID 0000-0002-5891-1208
Fardis VosoughiDepartment of Orthopedics and Trauma Surgery, Shariati Hospital Tehran University of Medical Sciences Tehran Iran.ORCID 0000-0002-9136-0479
Ali NikibakhshDepartment of Orthopaedic, Orthopaedic Research Center, Poursina Hospital, School of Medicine Guilan University of Medical Sciences Rasht Iran.ORCID 0009-0009-3801-6677
Ervin ZadgariDepartment of Orthopaedic, Orthopaedic Research Center, Poursina Hospital, School of Medicine Guilan University of Medical Sciences Rasht Iran.ORCID 0009-0007-5939-6782
Maryam MousaviFaculty of Sciences University of Guilan Rasht Iran.
Robert F LaPradeDepartment of Complex Knee and Sport Medicine Twin Cities Orthopedics Edina Minnesota USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: The purpose of this study was to assess the efficacy of arthroscopic intervention on the treatment of pigmented villonodular synovitis (PVNS) patients, with a focus on the potential advantages of this approach in lowering the risk of disease recurrence. Methods: We performed a systematic review and meta-analysis following the PRISMA 2020 protocol. Our search encompassed five databases, namely PubMed, Embase, Scopus, Web of Science and Cochrane Library. Statistical analysis was conducted on the extracted data by using the R ver. 4.4.0 software. This study included English-language observational studies (case series and cohort studies) published up to 31 March 2024, focusing on in vivo human subjects with at least 2 years of follow-up. Studies with less than 2 years of follow-up, non-arthroscopic treatment methods or addressing PVNS in structures other than the knee were excluded. Results: We identified 24 articles, comprising 7 case series and 17 cohort studies, based on title, abstract, and quality assessments. Approximately 16% (95% confidence interval [CI]: 10.4%-24.75%) of knees that underwent arthroscopic surgery were found to be at risk of recurrence. In line with our expectations, sub-group analysis comparing recurrence rates among different subtypes of PVNS found that the diffuse subtype exhibited a higher recurrence rate of 19.4% (95% CI: 10.01%-34.15%), compared to the local subtype, which had a recurrence rate of 9.5% (95% CI: 4.47%-19.01%). Based on the meta-regression analysis, no significant association was found between the recurrence rate and the publication year or patient mean age. However, there was a noticeable rise in the recurrence rate with a longer follow-up period, indicating a probable correlation between extended follow-up and increased recurrence rates. Conclusion: Our findings suggest that arthroscopic surgery for PVNS, particularly for the diffuse subtype, results in a higher recurrence rate compared to the localized subtype. However, the inherent challenges in achieving complete resection through arthroscopy, particularly in cases with extensive disease involvement, may contribute to the observed recurrence rates. Level of Evidence: Level III systematic review and meta-analysis.

Indexed as

arthroscopic surgerydiffuse pigmented villonodular synovitis (DPVNS)localized pigmented villonodular synovitis (LPVNS)pigmented villonodular synovitis (PVNS)recurrence rate

Identifiers

PMID39931151
PMCPMC11808254

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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.