Evidence map›Paper›PMID 33747376›Full record

ArticleClinics in orthopedic surgery2021

Culture-Expanded Autologous Adipose-Derived Mesenchymal Stem Cell Treatment for Osteonecrosis of the Femoral Head.

Pil Whan Yoon, Jong Yeal Kang, Chul-Ho Kim, Soong Joon Lee, Jeong Joon Yoo, Hee Joong Kim, Sung Keun Kang, Ju Hyeon Min, Kang Sup Yoon

Open access · diamondAbstract read
In one paragraph

Article in Clinics in orthopedic surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 32% 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, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
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  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Cell therapy for osteonecrosis of femoral head and joint preservation.Journal of clinical orthopaedics and trauma · 2022
    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

9 authors at 3 institutions in 1 country.

Pil Whan YoonDepartment of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Jong Yeal KangDepartment of Orthopedic Surgery, Seoul National University Boramae Hospital, Seoul, Korea.
Chul-Ho KimDepartment of Orthopedic Surgery, Gachon University Gil Medical Center, Incheon, Korea.
Soong Joon LeeDepartment of Orthopedic Surgery, Seoul National University Boramae Hospital, Seoul, Korea.
Jeong Joon YooDepartment of Orthopedic Surgery, Seoul National University College of Medicine, Seoul, Korea.
Hee Joong KimDepartment of Orthopedic Surgery, Seoul National University College of Medicine, Seoul, Korea.
Sung Keun KangBiostar Stem Cell Research Institute, R Bio Co., Ltd., Seoul, Korea.
Ju Hyeon MinBiostar Stem Cell Research Institute, R Bio Co., Ltd., Seoul, Korea.
Kang Sup YoonDepartment of Orthopedic Surgery, Seoul National University Boramae Hospital, Seoul, Korea.
Seoul National University · KRGachon University Gil Medical Center · KRUniversity of Ulsan · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroudOutcomes of traditional treatment for osteonecrosis of the femoral head (ONFH) are not always satisfactory. Hence, cell-supplementation therapy has been attempted to facilitate necrotic-tissue regeneration. Adipose-derived mesenchymal stem cell (ADMSC) transplantation is potentially advantageous over bone marrow-derived MSC implantation, but its outcomes for ONFH remain unclear. The aim of this study was to determine 2-year radiological and clinical outcomes of culture-expanded autologous ADMSC implantation for ONFH.

methodsEighteen hips with necrotic lesions involving ≥ 30% of the femoral head were included. ADMSCs were harvested by liposuction and culture expanded for 3 passages over 3 weeks. With a 6-mm single drilling, ADMSCs were implanted into the necrotic zone. All patients underwent magnetic resonance imaging (MRI), single-photon emission computed tomography/computed tomography (SPECT/CT) at screening and 6 months, 12 months, and 24 months postoperatively. The primary outcome was the change in the size of necrotic area on MRI. Secondary outcomes were changes in clinical scores and radioisotope uptake on SPECT/CT. Conversion total hip arthroplasty (THA) was defined as the endpoint.

resultsPreoperatively, the necrotic lesion extent was 63.0% (38.4%-96.7%) of the femoral head. The mean Harris hip score was 89.2, the University of California at Los Angeles (UCLA) score was 5.6, and Western Ontario and McMaster Universities Arthritis index (WOMAC) was 79.4. Three patients underwent THA and 1 patient died in an accident. Finally, 11 patients (14 hips) were available for ≥ 2-year follow-up. At the last follow-up, no surgery-related complications occurred, and 14 of 17 hips (82%) were able to perform daily activities without THA requirement. There was no significant decrease in lesion size between any 2 intervals on MRI. However, widening of high signal intensity bands on T2-weighted images inside the necrotic lesion was observed in 9 of 14 hips (64%); 11 of 14 hips (79%) showed increased vascularity on SPECT/CT at 2 years postoperatively. No significant differences were observed between preoperative and 24-month mean Harris hip score (89.2 vs. 88.6), WOMAC (79.4 vs. 75.7), and UCLA score (5.6 vs. 6.2).

conclusionsOur outcomes suggest that culture-expanded ADMSC implantation is a viable option for ONFH treatment without adverse events.

Indexed as

Adipose TissueAdultDecompression, SurgicalDisability EvaluationFemaleFemur Head NecrosisHumansMaleMesenchymal Stem Cell TransplantationMiddle AgedTransplantation, AutologousYoung AdultCore decompressionLesion sizeMagnetic resonance imagingOsteonecrosis of the femoral headStem cell

Identifiers

PMID33747376
PMCPMC7948035
OpenAlexW3116186549

What OpenQuestion holds

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LicenceCC BY-NC
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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.