Radiological Considerations of Posterior Cervical Lateral Mass Fixation Using Plate and Screw
Yonsei Medical Journal
;
: 406-412, 2004.
Article
in English
| WPRIM
| ID: wpr-14520
ABSTRACT
The aim of this study is to determine whether the posterior cervical fusion methods with the plate-screw system applied to the lateral mass of cervical spine are radiologically safe to patients. The lateral cervical X-rays and CT scans were done on 40 normal adults without cervical problem. Based on Roy-Camille and Magerl's method, the theological trajectory of screw was shown on films and the parameters were measured. The study based on Roy-Camille's method showed less than one percent chance of injury on the facet joint and the mean depth of the screw to be 10.5+/-1.4mm. On the other hand, Magerl's method showed the mean depth of screw to be 11.9+/-1.5mm which is slightly larger than that of Roy-Camille's method and no chance of facet injury occurred. A reduced lateral angle of screw (19.6+/-3.5 degrees) performed with the concept based on Magerl's method resulted a longer depth of screw (13.5+/-2.1mm). Both Roy-Camille and Magerl's methods seemed to be radiologically safe to normal persons. However, the authors recommend the reduced lateral angle (19.6+/-3.5 degrees) of screw based on the Magerl's method more than an original Magerl's methods.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Spinal Fusion
/
Bone Plates
/
Bone Screws
/
Tomography, X-Ray Computed
/
Cervical Vertebrae
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
English
Journal:
Yonsei Medical Journal
Year:
2004
Type:
Article
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