Evidence map›Paper›PMID 31996187›Full record

ArticleBMC musculoskeletal disorders2020

Correlation between the efficacy of stem cell therapy for osteonecrosis of the femoral head and cell viability.

Zhan Yu Wu, Qi Sun, Ming Liu, Brian E Grottkau, Zhi Xu He, Qiang Zou, Chuan Ye

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 9% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
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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 4 institutions in 2 countries.

Zhan Yu WuDepartment of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Qi SunYueyang Traditional Chinese Medicine Hospital, Hunan, China.
Ming LiuDepartment of Orthopaedics, West China Hospital of Sichuan University, Chengdu, China.
Brian E GrottkauDepartment of Orthopedics, Massachusetts General Hospital, Boston, MA, USA.
Zhi Xu HeCenter for Tissue Engineering and Stem Cells, Guizhou Medical University, Guiyang, China.
Qiang ZouDepartment of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Chuan YeDepartment of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China. yechuanchina@hotmail.com.
Guiyang Medical University · CNMassachusetts General Hospital · USShanghai University of Traditional Chinese Medicine · CNSichuan University · CN

Funding

Department of Science and Technology of Guiyang City 2019133, 20199138Key Laboratory of Adult Stem Cell Transformation Research, Chinese Academy of Medical Sciences/Stem Cell and Tissue Engineering Research Center, Guizhou Medical University 2018YB04National Natural Science Foundation of China (CN) 81360232
6 · The paper itself

Abstract

backgroundOsteonecrosis of the femoral head (ONFH) is a common disease that greatly affects the quality of life of patients. Repair of the necrotic area is key to successful treatment. Currently, the combination of stem cell transplantation and decompression is used clinically to promote the repair of necrotic areas based on the characteristics of stem cells. However, a considerable number of patients do not achieve a satisfactory outcome in terms of repair of the femoral head necrotic area, and it is very important to determine the reasons for the poor curative effect. The aim of this study was to investigate the correlation between stem cell viability and the repair efficacy of stem cell therapy combined with core decompression for early-stage ONFH.

methodsA total of 30 patients with idiopathic ONFH underwent core decompression combined with autologous stem cell transplantation. The Harris hip score (HHS) and difference in necrosis area before and after surgery were measured. The mean repair ratio was set as the threshold to divide the patients into group A (ratio above the mean) and group B (ratio below the mean). The ultrastructure, proliferative capacity, and multidirectional differentiation ability were compared between the groups.

resultsAt 9 months after surgery, the HHS and magnetic resonance imaging (MRI) findings improved by varying degrees. Based on the mean repair ratio of (62.2 ± 27.0)%, the threshold for dividing the patients into groups A and B was set to 62.2%. Better repair (group A) was associated with more rapid proliferation and a healthier ultrastructure. The cells in group A showed stronger specific staining signifying osteogenic and chondrogenic differentiation; alkaline phosphatase (ALP) activity, an indicator of osteogenic differentiation, was higher in group A than in group B (OD, 2.39 ± 0.44 and 1.85 ± 0.52; p <  0.05).

conclusionsThe quality of implanted stem cells is closely related to treatment efficacy and determines whether the defective self-repair in the necrotic area can be corrected to enhance repair and thus achieve the desired therapeutic outcome.

trial registrationThe trial registration number: ChiCTR-ORC-17011698 (retrospectively registered at 2017-06-19).

Indexed as

AdultCells, CulturedCell SurvivalDecompression, SurgicalFemaleFemur Head NecrosisFollow-Up StudiesHumansMaleStem Cell TransplantationTreatment OutcomeBone marrow mesenchymal stem cellsCurative effectOsteonecrosis of the femoral head

Identifiers

PMID31996187
PMCPMC6990483
OpenAlexW3013792258

What OpenQuestion holds

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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.