Published: 26 November, 2020 | Volume 4 - Issue 2 | Pages: 069-074
Figure 1:
Drawing of Fielding and Hawkins classification of the atlantoaxial joint deformity. Type I (A) no subluxation but rotation of atlas (less than 3mm of atlas anterior displacement). Type II (B) unilateral subluxation of one joint with atlas anterior displacement of 3-5 mm; possible deficient transverse ligament. Type III (C) ventral subluxation of atlas in both joints, atlas anterior displacement greater than 5 mm, deficient transverse and alar ligaments. Type IV (D) dorsal subluxation of atlas, posterior atlas displacement and deficient odontoid process; possible fractured Dens axis or congenital Dens-aplasia. (Reprinted with permission from Barcelos ACES, Patriota GC, Netto AU. Nontraumatic atlantoaxial rotatory subluxation grisel syndrome. Case report and literature review. Global Spine J. 2014; 4: 179-186).
Read Full Article HTML DOI: 10.29328/journal.jnnd.1001037 Cite this Article Read Full Article PDF
HSPI: We're glad you're here. Please click "create a new Query" if you are a new visitor to our website and need further information from us.
If you are already a member of our network and need to keep track of any developments regarding a question you have already submitted, click "take me to my Query."