Evidence map›Paper›PMID 32405666›Full record

ArticleJournal of experimental orthopaedics2020

A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing.

Takashi Ota, Satoru Demura, Satoshi Kato, Katsuhito Yoshioka, Hiroyuki Hayashi, Kei Inoue, Kazuya Shinmura, Noriaki Yokogawa, Toshiharu Shirai, Hideki Murakami and 1 more

Open access · goldAbstract read
PubMed Full text at PMC Publisher
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 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 48% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. Metallic Implants Used in Lumbar Interbody Fusion.Materials (Basel, Switzerland) · 2022
    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

11 authors at 3 institutions in 1 country.

Takashi OtaDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan.
Satoru DemuraDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan. msdemura@gmail.com.
Satoshi KatoDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan.
Katsuhito YoshiokaDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan.
Hiroyuki HayashiDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan.
Kei InoueDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan.
Kazuya ShinmuraDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan.
Noriaki YokogawaDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan.
Toshiharu ShiraiDepartment of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan.
Hideki MurakamiDepartment of Orthopaedic Surgery, Nagoya City University Medical School, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8602, Japan.
Hiroyuki TsuchiyaDepartment of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan.
Kanazawa University · JPKyoto Prefectural University of Medicine · JPMizuho (Japan) · JP

Funding

Medtronic Japan Medtronic Japam ERI
6 · The paper itself

Abstract

purposeAntibacterial iodine-supported titanium has an anodized oxide layer; thus, it can be expected to have a higher osteoconductivity than untreated titanium. This study aimed to compare the osteoconductivity between untreated titanium (Ti), anodically oxidized titanium (AO-Ti), and iodine-supported titanium (I-Ti) screws.

methodsThe screws were inserted into the vertebral bodies of 30 dogs (12 for the biomechanical, and 18 for the histological examination). The vertebral bodies were analyzed at 4 or 8 weeks after screw insertion. Biomechanically, rotational torque of the screw was measured. Histologically, bone formation index (ratio of the length of the part where the bone directly contacts with the length of the screw) and bone volume density (ratio of the area of the bone tissue to the area between the threads of the screw) were measured.

resultAt 4 weeks, the torque value was significantly higher in the AO-Ti (0.59 ± 0.16 Nm) and I-Ti (0.72 ± 0.14 Nm) groups than in the Ti group (0.39 ± 0.12 Nm), with the AO-Ti and I-Ti groups showing no significant difference. Bone formation index was significantly higher in the AO-Ti (72.5% ± 0.8%) and I-Ti (73.4% ± 1.5%) groups than in the Ti group (64.6% ±1.7%), with the AO-Ti and I-Ti groups showing no significant difference. Bone volume density did not show a significant difference. At 8 weeks, the results were similar to those at 4 weeks.

conclusionsI-Ti had a higher osteoconductivity than Ti, indicating that iodine coating did not adversely affect osteoconductivity.

Indexed as

Biomechanical analysisHistological analysisIodine-supported titanium implantOsteoconductivity

Identifiers

PMID32405666
PMCPMC7221053
OpenAlexW3026437409

What OpenQuestion holds

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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.