Evidence map›Paper›PMID 25787945›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2015

Bone loss of the superior adjacent vertebral body immediately posterior to the anterior flange of Bryan cervical disc.

Sang Hyun Kim, Young Sun Chung, Alexander E Ropper, Kyung Hoon Min, Tae Keun Ahn, Keun Soo Won, Dong Ah Shin, In Bo Han

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In one paragraph

Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. The lexicon for periprosthetic bone loss versus osteolysis after cervical disc arthroplasty: a systematic review.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2022
    Pooled it
  2. Complications of cervical total disc replacement and their associations with heterotopic ossification: a systematic review and meta-analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2020
    Pooled it
  3. Osteolysis after cervical disc arthroplasty.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2020
    Pooled it
  4. Article
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  6. Bone resorption phenomenon following anterior-posterior combined cervical fusion surgery: is it a pathologic finding?European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025
    Article
  7. Risk factors of bone loss after Prestige-LP cervical disc arthroplasty.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2024
    Article
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  10. Anterior bone loss: A common phenomenon which should be considered as bone remodeling process existed not only in patients underwent cervical disk replacement but also those with anterior cervical diskectomy and fusion.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2023
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  16. Anterior cervical spine blood supply: a cadaveric study.Surgical and radiologic anatomy : SRA · 2019
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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

8 authors at 5 institutions in 2 countries.

Sang Hyun KimDepartment of Neurosurgery, Ajou University, Suwon, Korea.
Young Sun ChungDepartment of Neurosurgery, Kunkuk University, Chungju, Korea.
Alexander E RopperDepartment of Neurosurgery, Barrow Neurological Institute, Phoenix, AZ, USA.
Kyung Hoon MinDepartment of Rehabilitation Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
Tae Keun AhnDepartment of Orthopedics, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
Keun Soo WonDepartment of Neurosurgery, CHA Bundang Medical Center, CHA University, 59, Yatap-ro Bundang-gu, Seongnam-si, Gyeonggi-do, 463-712, Korea.
Dong Ah ShinDepartment of Neurosurgery, Severance Hospital, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Korea. cistern@me.com.
In Bo HanDepartment of Neurosurgery, CHA Bundang Medical Center, CHA University, 59, Yatap-ro Bundang-gu, Seongnam-si, Gyeonggi-do, 463-712, Korea. hanib@cha.ac.kr.
CHA University · KRAjou University · KRBarrow Neurological Institute · USCHA University Bundang Medical Center · KRKunsan National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNo previous reports have mentioned bone loss of the superior adjacent vertebra immediately posterior to the anterior flange of Bryan cervical disc (Medtronic Sofamor Danek, Memphis, TN, USA), which plays a central role to prevent posterior migration of the device. The purpose of this study is to describe a new potential complication, bone loss immediately posterior to the anterior total disc replacement (TDR) flange on the superior adjacent vertebra following the Bryan cervical TDR and to discuss the possible mechanism.

methodsThe authors retrospectively reviewed 37 patients undergoing cervical TDR with the Bryan cervical disc. The clinical and radiological outcome data were collected at 1, 3, 6, 12, 24, and 36 months postoperatively, and at last follow-up, which ranged from 42 to 113 moths (average, 60.1 months). Clinical evaluation included the visual analog scale and neck disability index, and the radiographic evaluation included measurements of the functional spinal unit range of motion on flexion and extension and identification of radiographic changes such as bone loss.

resultsThe Bryan TDR showed good mid-term clinical and radiological outcomes. Interestingly, however, bone loss was noted immediately posterior to the TDR flange on superior adjacent vertebra in 3 total patients; at 3 months (n = 2) and 6 months (n = 1). Although the bone loss was increased up to 6 months, this did not progress and no degradation of clinical and radiological outcomes occurred at last follow-up.

conclusionsBone loss immediately posterior to the anterior TDR flange on the superior adjacent vertebra can occur in the early postoperative period due to possibly stress shielding effect. However, it did not result in clinical changes or increased rates of graft failure at last follow-up. A long-term follow-up study is mandatory to evaluate the long-term effects of the bone loss.

Indexed as

Joint ProsthesisAdultBone Diseases, MetabolicCervical VertebraeDisability EvaluationFemaleFollow-Up StudiesHumansIntervertebral Disc DegenerationMaleMiddle AgedPain MeasurementPostoperative ComplicationsRadiographyRetrospective StudiesTotal Disc ReplacementBryan discCervical disc diseaseDisc degenerationTotal disc replacement

Identifiers

PMID25787945
OpenAlexW2054508227

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.