Evidence map›Paper›PMID 34725722›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 Society2022

Complications of occipitocervical fixation: retrospective review of 128 patients with 5-year mean follow-up.

Mehmet Zileli, Nevhis Akıntürk

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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, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–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

18 citing papers in PubMed.

  1. Article
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  7. Robotic assistance for upper cervical instrumentation: report on accuracy and safety.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
  8. [Effectiveness comparison of robot-assisted and traditional freehand technology in treatment of atlantoaxial dislocation].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024
    Article
  9. Review
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  11. Surgical treatment of craniocervical instability: comparison of two constructs regarding clinical and radiological outcomes of 100 patients.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
    Article
  12. Article
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  15. Letter to the editor concerning "Complications of occipitocervical fixation: retrospective review of 128 patients with 5-year mean follow-up" by M. Zileli, et al. (Eur Spine J [2021]; doi: 10.1007/s00586-021-07037-2).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
    Article
  16. Answer to the letter to the editor of Salunke P, et al. concerning "Complications of occipitocervical fixation: retrospective review of 128 patients with 5-year mean follow-up" by M. Zileli, et al. (Eur Spine J [2021]; doi: 10.1007/s00586-021-07,037-2).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
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Mehmet ZileliEge University Neurosurgery Department, Bornova, Izmir, Turkey. zilelim@gmail.com.ORCID http://orcid.org/0000-0002-0448-3121
Nevhis AkıntürkEge University Neurosurgery Department, Bornova, Izmir, Turkey.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOccipitocervical fusion is necessary for many pathologies of the craniocervical junction. The anatomy of the region is unique, and fusion can cause significant morbidity. This retrospective review aims to investigate the complication rates and outcomes of occipitocervical fixation. MATERIAL AND

methodsThis is a retrospective review of 128 patients with occipitocervical fixation operated between 1994 and 2020. The average follow-up is 63 months.

resultsThe indications of occipitocervical fixation were basilar invagination (53 patients; 41.4%), trauma (25 patients; 19.5%), tumor (23 patients; 18%), instability due to rheumatoid arthritis (13 patients; 10.2%), cervical deformity (7 patients; 5.5%) and os odontoideum (7 patients; 5.5%). There were six early postoperative (1st month) deaths. We observed complications in 67 patients (52%). Most common complication was implant-related (32%), followed by wound problems (23.4%), systemic and other complications (11.7%), neurologic complications (6.2%). Implants are removed in 31 patients (24%) for different reasons: deep wound infection (7), local pain and restriction of head movements (21), respiratory distress and swallowing problems (2), screw fracture and local pain (1).

conclusionsOccipitocervical fixation has quite large number of complications and significantly restricts head movements. With the advent of our biomechanical concepts, indications should be limited, and shorter cervical fixations should be preferred. LEVEL OF EVIDENCE: Diagnostic: individual cross-sectional studies with consistently applied reference standard and blinding.

Indexed as

Atlanto-Axial JointSpinal FusionBone ScrewsCervical VertebraeCross-Sectional StudiesFollow-Up StudiesHumansOccipital BoneRetrospective StudiesTreatment OutcomeAtlantoaxial instabilityCraniovertebral junctionOccipitocervical fixationTransoral surgery

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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.