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Mastication causing segmental spinal motion in common cervical orthoses.

Publication ,  Journal Article
Chin, KR; Auerbach, JD; Adams, SB; Sodl, JF; Riew, KD
Published in: Spine (Phila Pa 1976)
February 15, 2006

STUDY DESIGN: In vivo fluoroscopic quantification of segmental cervical spinal motion in asymptomatic volunteers during mastication. OBJECTIVE: To quantify the degree of segmental cervical spine motion in patients during mastication and while wearing several commonly used cervical orthoses. SUMMARY OF BACKGROUND DATA: Cervical orthoses are routinely used to stabilize the cervical spine after trauma or cervical fusion and are, in some cases, prescribed to be worn at all times, including during eating. METHODS: Seven volunteers with an average age of 31 years (range, 26-42 years) had 5 seconds of continuous lateral cervical fluoroscopic imaging while they chewed gum without any cervical orthosis (control) and while wearing a soft collar turned forward then backward, a Philadelphia collar, a Miami J collar, or a two-poster brace. Still images were created from the fluoroscopy video, which allowed for quantification of the amount of segmental motion. RESULTS: All cervical collars produced statistically greater motion at occiput-C1 and C1-C2 when compared with no collar. The motion was greatest at the occiput-C1 junction and decreased to the C4 level. No motion was detected in any subject in any brace below C4. The two-poster brace produced the most segmental motion at occiput-C1 (6.3 degrees +/- 2.0 degrees) compared with the soft collar turned backwards (1.9 degrees +/- 1.9 degrees). No subject had any segmental motion below C2 in the soft collar. No segmental spinal motion was observed without a cervical brace. CONCLUSIONS: To limit upper cervical spine segmental motion during mastication, for patients with unstable cervical spines, we propose a two-poster brace with removal of the mandibular component to allow for free mandibular action. For stable spines, we propose a soft collar turned backwards. Patients should be educated with this information.

Duke Scholars

Published In

Spine (Phila Pa 1976)

DOI

EISSN

1528-1159

Publication Date

February 15, 2006

Volume

31

Issue

4

Start / End Page

430 / 434

Location

United States

Related Subject Headings

  • Range of Motion, Articular
  • Orthotic Devices
  • Orthopedics
  • Movement
  • Mastication
  • Male
  • Joint Instability
  • Humans
  • Fluoroscopy
  • Female
 

Citation

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Chin, K. R., Auerbach, J. D., Adams, S. B., Sodl, J. F., & Riew, K. D. (2006). Mastication causing segmental spinal motion in common cervical orthoses. Spine (Phila Pa 1976), 31(4), 430–434. https://doi.org/10.1097/01.brs.0000200218.52384.8b
Chin, Kingsley R., Joshua D. Auerbach, Samuel B. Adams, Jeffrey F. Sodl, and K Daniel Riew. “Mastication causing segmental spinal motion in common cervical orthoses.Spine (Phila Pa 1976) 31, no. 4 (February 15, 2006): 430–34. https://doi.org/10.1097/01.brs.0000200218.52384.8b.
Chin KR, Auerbach JD, Adams SB, Sodl JF, Riew KD. Mastication causing segmental spinal motion in common cervical orthoses. Spine (Phila Pa 1976). 2006 Feb 15;31(4):430–4.
Chin, Kingsley R., et al. “Mastication causing segmental spinal motion in common cervical orthoses.Spine (Phila Pa 1976), vol. 31, no. 4, Feb. 2006, pp. 430–34. Pubmed, doi:10.1097/01.brs.0000200218.52384.8b.
Chin KR, Auerbach JD, Adams SB, Sodl JF, Riew KD. Mastication causing segmental spinal motion in common cervical orthoses. Spine (Phila Pa 1976). 2006 Feb 15;31(4):430–434.

Published In

Spine (Phila Pa 1976)

DOI

EISSN

1528-1159

Publication Date

February 15, 2006

Volume

31

Issue

4

Start / End Page

430 / 434

Location

United States

Related Subject Headings

  • Range of Motion, Articular
  • Orthotic Devices
  • Orthopedics
  • Movement
  • Mastication
  • Male
  • Joint Instability
  • Humans
  • Fluoroscopy
  • Female