odontoid


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odontoid

[ō′dän‚tȯid]
(biology)
Toothlike.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Annual follow-up for assessment of joint pain and scoliosis and radiological evaluation of the cervical spine prior to general anesthesia for clinically significant odontoid hypoplasia may be the appropriate choice.
The unique characteristics of the odontoid explain the fracture's increased frequency in this population as well as the difficulty with its treatment.
Morphometric analysis of the C2 body and the odontoid process.
The historical background of Os odontoideum revealed that the first case has been illustrated as disentanglement of the odontoid process in 1863.
Os odontoideum is a rare craniocervical junction anomaly with a smooth cortical edge, located behind the anterior arc of the atlas and separated from the main body of the odontoid process (1).
These include striking short trunk dwarfism, odontoid hypoplasia, pectus carinatum, kyphosis, gibbus, scoliosis, genu valgum, coxa valga, flaring of the lower ribs, hypermobile joints, and abnormal gait with a tendency to fall.
This species has three ontogeny stages before it reaches its adult stage: 1) Ammocoete (subcutaneous eyes, oral opening with folded lips, without marginal papillae, gill area arranged as furrow with seven undeveloped openings, and a brown colored body), 2) Macroftalmia (developed eyes, inner mouth with fleshy lips and supra and infraoral dental lamina, gill openings exposed to the outside and a dark silver dorsal and ventral body coloration), 3) Hypermetamorphic (semicircular mouth opening, with oral and supra-oral odontoid pieces well-developed, eyes relatively small and covered by translucent membrane, gill opening with folds on each edge, developed dorsal fins, a silver body coloration and a bluish pigmentation on the fins) (Ruiz & Marchant, 2004).
In all patients with traumatic SCI, anteroposterior (AP), lateral (LAT), and odontoid views of the cervical spine are obtained.
Additionally, the epidural abscess in the dorsal aspect of the dens axis had also progressed, resulting in an odontoid ostitis.
(i) The craniocervical angle which is the inner angle formed by the intersection of McGregor's plane (line passing through the occiput and nasal spine) and odontoid plane (line passing through the inferior-anterior point of the odontoid process and its superior apex) with a normal value of 101 [+ or -] 5.
These images showed a reduction of the left articular condyle-glenoid fossae space width, with no evidence of condyle neck fracture, and a right deviation of first (odontoid process), second, and third cervical vertebrae, regarding the skull base, caused probably by the chin injury (Figure 2).