Evidence map›Paper›PMID 34734146›Full record

ReviewJournal of spine surgery (Hong Kong)2021

Etiology and treatment of cervical kyphosis: state of the art review-a narrative review.

Yoji Ogura, John R Dimar, Mladen Djurasovic, Leah Y Carreon

Registry-linked trialOpen access · diamondAbstract readReview
In one paragraph

Review in Journal of spine surgery (Hong Kong), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07641959 (Effects of Sahrmann's Approach on Pain, Range of Motion, Craniovertebral Angle and Function in Patients With Cervical Extension Syndrome), which is not on this map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.4field-weighted citation impact, top 5% 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.

NCT07641959 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Effects of Sahrmann's Approach on Pain, Range of Motion, Craniovertebral Angle and Function in Patients With Cervical Extension Syndrome

TypeinterventionalSponsorRiphah International UniversityRan2026 to 2026Enrolled54ConditionsNeck PainArmsSahrmann's Exercises, conventional physiotherapy
3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 50 citations in OpenAlex.

  1. Approach to assess the effect of sagittal cervical alignment on three-dimensional movement of the cervical spine in spondylosis 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 · 2026
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  4. Surgical management of congenital C2 over C3 spondyloptosis with severe cervical kyphosis: two case reports.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 · 2026
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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

4 authors at 1 institution in 1 country.

Yoji OguraNorton Leatherman Spine Center, Louisville, KY, USA.
John R DimarNorton Leatherman Spine Center, Louisville, KY, USA.
Mladen DjurasovicNorton Leatherman Spine Center, Louisville, KY, USA.
Leah Y CarreonNorton Leatherman Spine Center, Louisville, KY, USA.
Norton Healthcare · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo provide state of the art review regarding cervical kyphosis.

backgroundCervical spine kyphosis has been increasingly common due to the growing elderly population. Clinicians should comprehensively understand its symptoms, biomechanics, etiology, radiographic evaluation, classification, and treatment options and complications of each treatment. Comprehensive review will help clinicians improve the management for patients with cervical kyphosis.

methodsThe available literature relevant to cervical kyphosis was reviewed. PubMed, Medline, OVID, EMBASE, and Cochrane were used to review the literature.

conclusionsThis article summarizes current concepts regarding etiology, evaluation, surgical treatment, complications and outcomes of cervical kyphosis. Major etiologies of cervical kyphosis include degenerative, post-laminectomy, and ankylosing spondylitis. Clinical presentations include neck pain, myelopathy, radiculopathy, and problems with horizontal gaze, swallowing and breathing. Cervical lordosis, C2-7 sagittal vertical axis, chin-brow to vertical angle, and T1 slope should be evaluated from upright lateral 36-inch film. The most widely used classification system includes a deformity descriptor and 5 modifiers. A deformity descriptor provides a basic grouping of the deformity consisting of five types, cervical, cervicothoracic, thoracic, coronal cervical deformity, and cranio-vertebral junction deformity. The 5 modifiers include C2-7 sagittal vertical axis, chin-brow to vertical angle, T1 slope minus cervical lordosis, myelopathy based on modified Japanese Orthopaedic Association score, and SRS-Schwab classification for thoracolumbar deformity. Current treatment options include anterior discectomy and fusion, anterior osteotomy, Smith-Peterson osteotomy, pedicle subtraction osteotomy, or a combination of these based on careful preoperative evaluation.

Indexed as

Cervical kyphosisclassificationcomplicationetiologytreatment

Identifiers

PMID34734146
PMCPMC8511555
OpenAlexW3198032868

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.