PainSci summary of Gay 1993?This page is one of thousands in the PainScience.com bibliography. It is not a general article: it is focused on a single scientific paper, and it may provide only just enough context for the summary to make sense. Links to other papers and more general information are provided at the bottom of the page, as often as possible. ★★★★☆4-star ratings are for bigger/better studies and reviews published in more prestigious journals, with only quibbles. Ratings are a highly subjective opinion, and subject to revision at any time. If you think this paper has been incorrectly rated, please let me know.
This review of several papers about neck posture indicates that “a wide range of normal exists in the posture and configuration of the cervical spine,” and concludes, “There is little evidence to support the contention that altered cervical curvatures are of prognostic significance.”
original abstract†Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.
OBJECTIVE: To review the literature regarding the curve of the cervical spine in normal and injured persons, emphasizing common variations in cervical curvature and their possible clinical significance. DATA SOURCE: A MEDLINE literature search of the English-language, human literature was performed using multiple search strategies relevant to radiography, posture, lordosis, injury, diagnosis and prognosis of the cervical spine (MESH: cervical vertebrae). Additionally, article bibliographies were searched for further relevant articles. No publication time limit was imposed.
STUDY SELECTION: Articles were identified by the author as being directly relevant to the objective and scope of this review.
DATA EXTRACTION: Data was extracted as presented in each original article.
DATA SYNTHESIS: The articles reviewed indicate that a wide range of normal exists in the posture and configuration of the cervical spine. Although kyphotic angulation and straightening or reversal of cervical lordosis are commonly seen following trauma, they may be normal variants. Muscle spasm is a widely used explanation for these variations when seen in patients with pain or trauma. Kyphotic angulation is often associated with posterior ligamentous injury of a motion segment. Prognostic significance of these variations is claimed by some authors.
CONCLUSION: There is little evidence to support the contention that altered cervical curvatures are of prognostic significance. Although kyphotic angulation is associated with anterior subluxation (hyperflexion sprain), it is not a reliable diagnostic criterion for that condition. It is reasonable to assume that straightening or reversal of a previously lordotic cervical curve is the result of muscular spasm, but more specific interpretation is not supported by the literature. More study is needed to characterize the specific dynamics and etiologies involved in the determination of cervical spine configuration.
These two articles on PainScience.com cite Gay 1993 as a source:
- PS Does Posture Correction Matter? — Posture correction strategies and exercises … and some reasons not to care or bother
- PS Save Yourself from Neck Pain! — A complete guide to chronic neck pain and the disturbing sensation of a “crick”
This page is part of the PainScience BIBLIOGRAPHY, which contains plain language summaries of thousands of scientific papers & others sources. It’s like a highly specialized blog. A few highlights:
- A Bayesian model-averaged meta-analysis of the power pose effect with informed and default priors: the case of felt power. Gronau 2017 Comprehensive Results in Social Psychology.
- The neck and headaches. Bogduk 2014 Neurol Clin.
- Agreement of self-reported items and clinically assessed nerve root involvement (or sciatica) in a primary care setting. Konstantinou 2012 Eur Spine J.
- Effect of NSAIDs on Recovery From Acute Skeletal Muscle Injury: A Systematic Review and Meta-analysis. Morelli 2017 Am J Sports Med.
- Association of Spinal Manipulative Therapy With Clinical Benefit and Harm for Acute Low Back Pain: Systematic Review and Meta-analysis. Paige 2017 JAMA.