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Published on: September 21, 2017
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Changes in deep neck muscle length from the neutral to forward head posture. A cadaveric study using Thiel cadavers
Guohao Lin1, Weijie Wang2, Tracey Wilkinson1
1Centre for Anatomy and Human Identification, School of Science and Engineering, University of Dundee, Dundee, UK.
Clinical Anatomy (New York, N.Y.)
|January 17, 2022
Summary
Forward head posture (FHP) causes deep neck muscle imbalances. This study quantified muscle length changes in FHP, identifying key muscles for rehabilitation and restoring optimal head posture.
Area of Science:
- Anatomy
- Biomechanics
- Kinesiology
Background:
- Forward head posture (FHP) is a prevalent postural deviation.
- Deep neck muscle imbalance is a significant concern in FHP rehabilitation.
- Quantitative data on deep neck muscle length changes in FHP is limited.
Purpose of the Study:
- To investigate deep neck muscle length alterations across varying FHP severity levels.
- To provide anatomical insights for clinical rehabilitation strategies targeting FHP.
Main Methods:
- Dissection of six Thiel-embalmed cadavers.
- 3D digitization of 16 deep neck muscles in neutral, slight, and severe FHP.
- Analysis of craniovertebral angle for FHP quantification.
- Quantitative length change analysis using 3D modeling software.
Main Results:
- Slight FHP: Upper semispinalis capitis and rectus capitis posterior minor shortened; longus capitis and splenius cervicis lengthened.
- Severe FHP: Most occipital extensors shortened, cervical extensors lengthened. Longus capitis and longus colli also lengthened.
- Axial rotators showed no significant length change.
Conclusions:
- Six specific deep neck muscles are crucial for FHP rehabilitation.
- Interventions targeting occipital and cervical extensors may improve FHP.
- This study offers novel anatomical data to guide FHP treatment.
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