Evidence map›Paper›PMID 34966858›Full record

ArticleSpine surgery and related research2021

Preliminary Clinical Outcome of One-level Mobi-C Total Disc Replacement in Japanese Population.

Ken Ishii, Norihiro Isogai, Kenshi Daimon, Tomoharu Tanaka, Yoshifumi Okada, Yutaka Sasao, Makoto Nishiyama, Shigeto Ebata, Haruki Funao, Morio Matsumoto

Open access · diamondAbstract read
In one paragraph

Article in Spine surgery and related research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.2field-weighted citation impact, top 49% 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

4 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Article
  3. Postoperative Physical Therapy for Cervical Total Disc Replacement: A Case Report.International journal of sports physical therapy · 2025
    Article
  4. 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

10 authors at 3 institutions in 1 country.

Ken IshiiDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Chiba, Japan.
Norihiro IsogaiDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Chiba, Japan.
Kenshi DaimonDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Chiba, Japan.
Tomoharu TanakaDepartment of Orthopaedic Surgery and Spine and Spinal Cord Center, International University of Health and Welfare Mita Hospital, Tokyo, Japan.
Yoshifumi OkadaDepartment of Orthopaedic Surgery and Spine and Spinal Cord Center, International University of Health and Welfare Mita Hospital, Tokyo, Japan.
Yutaka SasaoDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Chiba, Japan.
Makoto NishiyamaDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Chiba, Japan.
Shigeto EbataDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Chiba, Japan.
Haruki FunaoDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Chiba, Japan.
Morio MatsumotoDepartment of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.
Mita Hospital · JPInternational University of Health and Welfare · JPKeio University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn 2018, the first Mobi-C

methodsWe examined 24 consecutive patients who underwent 1-level TDR after 2018 and followed up for more than 6 months after surgery. The evaluation criteria included age, gender, diagnosis, follow-up period, surgical level, implant size, surgery time, intraoperative bleeding volume, complications, revision surgery, imaging findings, JOA score, and various questionnaires.

resultsThe mean age was 52.7 years, 13 males and 11 females. There were 15 cases of cervical disk herniation and 9 cases of cervical spondylosis. The mean follow-up period was 17.4 months. Surgical levels were C3/4 in 4 cases, C4/5 in 2 cases, C5/6 in 16 cases, and C6/7 in 2 cases. The mean operation time was 138.5 minutes, the amount of intraoperative bleeding was 32.1 ml, and there were no serious intraoperative complications. The range of motion of the affected level increased significantly, from 6.6 degrees preoperatively to 12.2 degrees at final follow-up. No patients required revision surgery at final follow-up, and there were no cases of heterotopic ossification or adjacent segment disease. One patient exhibited radiculopathy due to mild subsidence 1 year after surgery, and 1 had asymptomatic contact of device plates. Preoperative and final JOA scores improved from 11.7 to 15.8 points, and NRS improved from 4.3 to 1.3 points for neck pain and 4.3 to 1.7 points for arm pain. Preoperative and final NDI improved from 39.7% to 14.0%, and EQ-5D improved from 0.602 to 0.801.

conclusionsThe short-term treatment outcomes of Mobi-C

Indexed as

Cervical disc herniationCervical spineCervical SpondylosisClinical outcomeTotal disc replacement (TDR)

Identifiers

PMID34966858
PMCPMC8668213
OpenAlexW3155654701

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.