Evidence map›Paper›PMID 41929743›Full record

ArticleJournal of craniovertebral junction & spine

Normative segmental cervical lordosis distribution and sagittal vertical axis variations with T1 slope: Defining the role of the C2-C5 segment.

Sadegh Bagherzadeh, Srujan Kopparapu, Faramarz Roohollahi, Jay Kumar, Sawyer Bauer, Elliot Neal, Mohammad Hassan A Noureldine, Elliot Pressman, Puya Alikhani, Mohsen Rostami

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Article in Journal of craniovertebral junction & spine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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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

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Sadegh BagherzadehDepartment of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Srujan KopparapuDepartment of Neurosurgery, Brain and Spine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Faramarz RoohollahiDepartment of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Jay KumarDepartment of Neurosurgery, Brain and Spine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Sawyer BauerDepartment of Neurosurgery, Brain and Spine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Elliot NealDepartment of Neurosurgery, Brain and Spine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Mohammad Hassan A NoureldineDepartment of Neurosurgery, Brain and Spine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Elliot PressmanDepartment of Neurosurgery, Brain and Spine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Puya AlikhaniDepartment of Neurosurgery, Brain and Spine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Mohsen RostamiDepartment of Neurosurgery, Brain and Spine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The T1 slope (TS) is a major determinant of cervical sagittal alignment, yet its relationship to lordosis distribution and sagittal vertical axis (SVA) in asymptomatic adults remains insufficiently defined. This study evaluates how TS influences cervical lordosis segmentation, apex location, and SVA. Materials and Methods: Standing lateral cervical radiographs from 85 asymptomatic adults (mean age 50.5 ± 29.1 years; 45 males, 40 females) obtained between September 2024 and September 2025 were analyzed. Participants were grouped as Low-TS (<20°, Results: TS correlated with TCL ( Conclusion: TS drives a predictable caudal redistribution of cervical lordosis in asymptomatic adults, primarily through subaxial modulation, while upper cervical alignment remains preserved to maintain horizontal gaze.

Indexed as

Cervical deformitycervical lordosiscervical spinelordosis distributionnormative value

Identifiers

PMID41929743
PMCPMC13042538

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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.