Evidence map›Paper›PMID 33188474›Full record

ArticleJournal of experimental orthopaedics2020

Comparative matched-pair cohort analysis of the short-term clinical outcomes of mesenchymal stem cells versus hyaluronic acid treatments through intra-articular injections for knee osteoarthritis.

Yong Sang Kim, Dong Suk Suh, Dae Hyun Tak, Pill Ku Chung, Yoo Beom Kwon, Tae Yong Kim, Yong Gon Koh

Open access · goldAbstract read
In one paragraph

Article in Journal of experimental orthopaedics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 14% 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

9 citing papers in PubMed, 3 syntheses or guidelines pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
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 at 1 institution in 1 country.

Yong Sang KimDepartment of Orthopaedic Surgery, Center for Stem Cell & Arthritis Research, Yonsei Sarang Hospital, 10, Hyoryeong-ro, Seocho-gu, Seoul, Republic of Korea.
Dong Suk SuhDepartment of Orthopaedic Surgery, Center for Stem Cell & Arthritis Research, Yonsei Sarang Hospital, 10, Hyoryeong-ro, Seocho-gu, Seoul, Republic of Korea.
Dae Hyun TakDepartment of Orthopaedic Surgery, Center for Stem Cell & Arthritis Research, Yonsei Sarang Hospital, 10, Hyoryeong-ro, Seocho-gu, Seoul, Republic of Korea.
Pill Ku ChungDepartment of Orthopaedic Surgery, Center for Stem Cell & Arthritis Research, Yonsei Sarang Hospital, 10, Hyoryeong-ro, Seocho-gu, Seoul, Republic of Korea.
Yoo Beom KwonDepartment of Orthopaedic Surgery, Center for Stem Cell & Arthritis Research, Yonsei Sarang Hospital, 10, Hyoryeong-ro, Seocho-gu, Seoul, Republic of Korea.
Tae Yong KimDepartment of Orthopaedic Surgery, Center for Stem Cell & Arthritis Research, Yonsei Sarang Hospital, 10, Hyoryeong-ro, Seocho-gu, Seoul, Republic of Korea.
Yong Gon KohDepartment of Orthopaedic Surgery, Center for Stem Cell & Arthritis Research, Yonsei Sarang Hospital, 10, Hyoryeong-ro, Seocho-gu, Seoul, Republic of Korea. yonggonkoh@gmail.com.ORCID http://orcid.org/0000-0002-3041-0858
Yonsei Sarang Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIntra-articular injection of hyaluronic acid (HA) has shown promises in reducing pain and improving physical function in knee osteoarthritis (OA). Recently, cell-based therapies using mesenchymal stem cells (MSCs) have emerged as potential treatments. However, few studies have compared the treatment outcomes between MSCs and HA. This study aimed to compare the clinical and radiological outcomes of intra-articular injections of MSCs versus HA in patients with knee OA.

methodsA cohort of 209 patients with knee OA were retrospectively screened for those who underwent intra-articular injections using MSCs or HA. Thirty MSC-treated patients (MSC group) were pair-matched with thirty HA-treated patients (HA group) based on gender and age. Clinical outcomes were evaluated using the visual analog scale (VAS), International Knee Documentation Committee (IKDC) rating system, and Lysholm scoring system. Radiological evaluation was assessed using the Kellgren-Lawrence (K-L) grading system.

resultsMSC treatment yielded consistent significant improvements in VAS, IKDC and Lysholm scores. In the HA group, VAS scores significantly decreased at 1 month, slightly increased at 3 months, and increased significantly from 3 months to 1 year after injection. The IKDC and Lysholm scores improved significantly until 3 months, but gradually worsened thereafter. Significantly greater improvements in VAS (P = 0.041), IKDC (P = 0.014), and Lysholm (P = 0.020) scores were observed in the MSC group compared to those in the HA group at 1-year post-treatment. The K-L grade worsened in a few patients, especially those in the HA group, albeit no significant difference.

conclusionsMSC group showed better VAS, IKDC, and Lysholm scores at 1-year post-treatment, compared to the HA group, although earlier clinical improvements were superior in the HA group for the initial 3 months. LEVEL OF EVIDENCE: Therapeutic study, Level III.

Indexed as

Hyaluronic acidInjectionKneeMesenchymal stem cellsOsteoarthritis

Identifiers

PMID33188474
PMCPMC7666263
OpenAlexW3100219904

What OpenQuestion holds

Textmetadata
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.