Evidence map›Paper›PMID 32887636›Full record

ArticleJournal of orthopaedic surgery and research2020

A new 3D printing porous trabecular titanium metal acetabular cup for primary total hip arthroplasty: a minimum 2-year follow-up of 92 consecutive patients.

Xiao Geng, Yang Li, Feng Li, Xinguang Wang, Ke Zhang, Zhongjun Liu, Hua Tian

Erratum issuedAbstract read
In one paragraph

Article in Journal of orthopaedic surgery and research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  12. Point-of-Care Orthopedic Oncology Device Development.Current oncology (Toronto, Ont.) · 2023
    Article
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  14. Article
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  18. Application of 3-dimensional printing implants for bone tumors.Clinical and experimental pediatrics · 2022
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Xiao GengDepartment of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Beijing, 100191, China.
Yang LiDepartment of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Beijing, 100191, China.
Feng LiDepartment of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Beijing, 100191, China.
Xinguang WangDepartment of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Beijing, 100191, China.
Ke ZhangDepartment of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Beijing, 100191, China.
Zhongjun LiuDepartment of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Beijing, 100191, China.
Hua TianDepartment of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Beijing, 100191, China. zjliu@bjmu.edu.cn.ORCID http://orcid.org/0000-0001-7139-3372

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAseptic cup loosening is still one of the main reasons leading to acetabular cup failures. 3D printing porous trabecular titanium metal acetabular cup may provide good initial stability and secondary fixation because of its highly interconnected, porous structure. Few large sample studies have reported the clinical outcomes of electron beam melting (EBM) porous titanium acetabular cup in Chinese population.

methodsWe retrospectively collected and analyzed the clinical data of a total of 92 consecutive patients between January 2013 and November 2017, with an average follow-up of 48.2 ± 3.6 months. Clinical outcomes included Harris Hip Score (HHS), the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index, satisfaction rate, and cup survival rate were evaluated. Radiographic assessments were conducted to evaluate osteointegration.

resultsHHS scores improved significantly while the WOMAC score decreased significantly at the latest follow-up (p < 0.001). The satisfaction rate (prevalence of satisfied or very satisfied) was 91.3%. No acetabular cup failures occurred. Radiolucent lines appeared in 15 cases (18 hips) and disappeared in 6 months. No cup loosening signs found until the last follow-up. The overall survival rate of implantation is 99.1% (cup survival rate 100%).

conclusionThe new EBM-produced 3D ACT™ cup demonstrated us its favorable short- to mid-term clinical outcomes in Chinese THA patients. It can provide high acetabular cup survival rate, great clinical improvements and excellent biological fixation. Further investigations are needed to confirm its long-term outcomes.

Indexed as

Hip ProsthesisPrinting, Three-DimensionalTitaniumAcetabulumAgedArthroplasty, Replacement, HipAsian PeopleFemaleFollow-Up StudiesHumansMaleMiddle AgedPorosityProsthesis DesignProsthesis FailureTime FactorsTitanium3D printingArthroplastyHipOutcomeTrabecular titanium acetabular cup

Identifiers

PMID32887636
PMCPMC7487482

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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.