Ligamentous Laxity Across C0-C1-C2 Complex. Axial Torque-rotation ...

Trang chủ » C0 C1 C2 » Ligamentous Laxity Across C0-C1-C2 Complex. Axial Torque-rotation ...

Có thể bạn quan tâm

Clipboard, Search History, and several other advanced features are temporarily unavailable. Skip to main page content Dot gov

The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation pubmed logo Search: Search Advanced Clipboard User Guide Save Email Send to
  • Clipboard
  • My Bibliography
  • Collections
  • Citation manager
Display options Display options Format Abstract PubMed PMID

Save citation to file

Format: Summary (text) PubMed PMID Abstract (text) CSV Create file Cancel

Email citation

Subject: 1 selected item: 2263977 - PubMed To: From: Format: Summary Summary (text) Abstract Abstract (text) MeSH and other data Send email Cancel

Add to Collections

  • Create a new collection
  • Add to an existing collection
Name your collection: Name must be less than 100 characters Choose a collection: Unable to load your collection due to an error Please try again Add Cancel

Add to My Bibliography

  • My Bibliography
Unable to load your delegates due to an error Please try again Add Cancel

Your saved search

Name of saved search: Search terms: Test search terms Would you like email updates of new search results? Saved Search Alert Radio Buttons
  • Yes
  • No
Email: (change) Frequency: Monthly Weekly Daily Which day? The first Sunday The first Monday The first Tuesday The first Wednesday The first Thursday The first Friday The first Saturday The first day The first weekday Which day? Sunday Monday Tuesday Wednesday Thursday Friday Saturday Report format: Summary Summary (text) Abstract Abstract (text) PubMed Send at most: 1 item 5 items 10 items 20 items 50 items 100 items 200 items Send even when there aren't any new results Optional text in email: Save Cancel

Create a file for external citation management software

Create file Cancel

Your RSS Feed

Name of RSS Feed: Number of items displayed: 5 10 15 20 50 100 Create RSS Cancel RSS Link Copy

Actions

CiteCollectionsAdd to Collections
  • Create a new collection
  • Add to an existing collection
Name your collection: Name must be less than 100 characters Choose a collection: Unable to load your collection due to an errorPlease try again Add Cancel Display options Display options Format AbstractPubMedPMID

Share

  • Permalink Copy

Page navigation

  • Title & authors
  • Abstract
  • Similar articles
  • Cited by
  • Publication types
  • MeSH terms
  • Related information
  • Grants and funding
  • LinkOut - more resources
Title & authors Abstract Similar articles Cited by Publication types MeSH terms Related information Grants and funding LinkOut - more resources CiteDisplay options Display options Format AbstractPubMedPMID

Abstract

The axial torque until failure of the ligamentous occipito-atlanto-axial complex (C0-C1-C2) subjected to axial angular rotation (theta) was characterized using a biaxial MTS system. A special fixture and gearbox that permitted right axial rotation of the specimen until failure without imposing any additional constraints were designed to obtain the data. The average values for the axial rotation and torque at the point of maximum resistance were, respectively, 68.1 degrees and 13.6 N-m. The specimens offered minimal resistance (approximately 0.5 N-m), up to an average axial rotation of 21 degrees across the complex. The torque-angular rotation (T-theta) curve can be divided into four regions: regions of least and steadily increasing resistances, a transition zone that connects these two regions, and the increasing resistance region to the point of maximum resistance. The regions of least and steadily increasing resistances may be represented by two straight lines with average slopes of 0.028 and 0.383 N-m/degree, respectively. Post-test dissection of the specimens disclosed the following. The point of maximum resistance corresponded roughly to the value of axial rotation at which complete bilateral rotary dislocation of the C1-C2 facets occurred. The types of injuries observed were related to the magnitude of axial rotation imposed on a specimen during testing. Soft-tissue injuries alone (like stretch/rupture of the capsular ligaments, subluxation of the C1-C2 facets, etc.) were confined to specimens rotated up to or close to the point of maximum resistance. The specimens that were subjected to rotations up to the point of maximum resistance of the curve spontaneously reduced completely on removal from the testing apparatus. Spontaneous reduction was not possible for specimens tested slightly beyond their points of maximum resistance.(ABSTRACT TRUNCATED AT 250 WORDS)

PubMed Disclaimer

Similar articles

  • Dynamic response of the occipito-atlanto-axial (C0-C1-C2) complex in right axial rotation. Chang H, Gilbertson LG, Goel VK, Winterbottom JM, Clark CR, Patwardhan A. Chang H, et al. J Orthop Res. 1992 May;10(3):446-53. doi: 10.1002/jor.1100100318. J Orthop Res. 1992. PMID: 1569507
  • Effects of alar ligament transection on upper cervical spine rotation. Panjabi M, Dvorak J, Crisco JJ 3rd, Oda T, Wang P, Grob D. Panjabi M, et al. J Orthop Res. 1991 Jul;9(4):584-93. doi: 10.1002/jor.1100090415. J Orthop Res. 1991. PMID: 2045985
  • Development of a computer model to predict strains in the individual fibers of a ligament across the ligamentous occipito-atlanto-axial (C0-C1-C2) complex. Goel VK, Yamanishi TM, Chang H. Goel VK, et al. Ann Biomed Eng. 1992;20(6):667-86. doi: 10.1007/BF02368612. Ann Biomed Eng. 1992. PMID: 1449233
  • Biomechanical analysis of screw constructs for atlantoaxial fixation in cadavers: a systematic review and meta-analysis. Du JY, Aichmair A, Kueper J, Wright T, Lebl DR. Du JY, et al. J Neurosurg Spine. 2015 Feb;22(2):151-61. doi: 10.3171/2014.10.SPINE13805. Epub 2014 Dec 5. J Neurosurg Spine. 2015. PMID: 25478824 Review.
  • What is new in mechanical properties of tissue-engineered organs. Auger FA, Berthod F, Goulet F, Germain L. Auger FA, et al. Curr Top Pathol. 1999;93:87-93. doi: 10.1007/978-3-642-58456-5_9. Curr Top Pathol. 1999. PMID: 10339901 Review. No abstract available.
See all similar articles

Cited by

  • Distinguishing Different Emotions Evoked by Music via Electroencephalographic Signals. Hou Y, Chen S. Hou Y, et al. Comput Intell Neurosci. 2019 Mar 6;2019:3191903. doi: 10.1155/2019/3191903. eCollection 2019. Comput Intell Neurosci. 2019. PMID: 30956655 Free PMC article.
  • Chronic neck pain: making the connection between capsular ligament laxity and cervical instability. Steilen D, Hauser R, Woldin B, Sawyer S. Steilen D, et al. Open Orthop J. 2014 Oct 1;8:326-45. doi: 10.2174/1874325001408010326. eCollection 2014. Open Orthop J. 2014. PMID: 25328557 Free PMC article.
  • A geometrical model of vertical translation and alar ligament tension in atlanto-axial rotation. Boszczyk BM, Littlewood AP, Putz R. Boszczyk BM, et al. Eur Spine J. 2012 Aug;21(8):1575-9. doi: 10.1007/s00586-012-2209-z. Epub 2012 Mar 2. Eur Spine J. 2012. PMID: 22382726 Free PMC article.
  • Artificial atlanto-odontoid joint replacement through a transoral approach. Lu B, He XJ, Zhao CG, Li HP, Wang D. Lu B, et al. Eur Spine J. 2009 Jan;18(1):109-17. doi: 10.1007/s00586-008-0835-2. Epub 2008 Nov 29. Eur Spine J. 2009. PMID: 19043745 Free PMC article.
  • Plate and screw fixation for atlanto-axial subluxation. Goel A, Laheri V. Goel A, et al. Acta Neurochir (Wien). 1994;129(1-2):47-53. doi: 10.1007/BF01400872. Acta Neurochir (Wien). 1994. PMID: 7998495
See all "Cited by" articles

Publication types

  • Research Support, U.S. Gov't, P.H.S. Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search

MeSH terms

  • Biomechanical Phenomena Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search
  • Biomedical Engineering / instrumentation Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search
  • Cadaver Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search
  • Cervical Vertebrae / pathology Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search
  • Cervical Vertebrae / physiology* Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search
  • Humans Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search
  • Ligaments / pathology Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search
  • Ligaments / physiology* Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search
  • Rotation Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search
  • Stress, Mechanical Actions
    • Search in PubMed
    • Search in MeSH
    • Add to Search

Related information

  • MedGen

Grants and funding

  • AR 32954/AR/NIAMS NIH HHS/United States

LinkOut - more resources

  • Full Text Sources

    • Ovid Technologies, Inc.

  • Medical

    • MedlinePlus Health Information

  • Miscellaneous

    • NCI CPTAC Assay Portal
[x] Cite Copy Download .nbib .nbib Format: AMA APA MLA NLM Send To
  • Clipboard
  • Email
  • Save
  • My Bibliography
  • Collections
  • Citation Manager
[x]

NCBI Literature Resources

MeSH PMC Bookshelf Disclaimer

The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Unauthorized use of these marks is strictly prohibited.

Từ khóa » C0 C1 C2