Comparative Analysis of Cervical Lateral Mass Screw Insertion among Three Techniques in the Korean Population by Quantitative Measurements with Reformatted 2D CT Scan Images : Clinical Research

Cho, Jae-Ik; Kim, Dae-Hyun

doi:10.3340/jkns.2008.44.3.124

Cited by 12 publications

(23 citation statements)

References 32 publications

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“…Cho and kim 5) described no significant difference in the safety angles (mean angle less than 8˚) for avoiding vertebral artery injury among the RoyCamille, Magerl and the Kim's method.…”

Section: Discussionmentioning

confidence: 99%

“…This difference might be due to the relatively straight sagittal angle used with the Roy-Camille method compared to the oblique sagittal angle used with the Magerl method. Cho and Kim 5) pre-sumed that the lateral masses in Koreans and East Asians may be shorter, on average, than those of Europeans or Hispanics and, therefore, focused on a Korean population. The mean screw path lengths were 13.5 mm at C3 to C6 and 13.0 mm at C7 for the Roy-Camille technique and 14 mm at C3 to C6 and 13.6 mm at C7 for the Magerl technique, consistent with the result of the study by Yoon et al 31) With the Kim's method, the minimal depth for bicortical screw fixation ranged from 13.7 mm to 13.9 mm at C3, C4, and C5.…”

Section: Discussionmentioning

confidence: 99%

“…. Our senior author (KDH) suggested the modified lateral mass screw technique to fix the screw using an adjacent anatomical structure 5) . Each of these techniques has a unique entrance point for screw insertion and trajectory.…”

Section: Discussionmentioning

confidence: 99%

“…The purpose of this study is to quantitatively compare the incidences of nerve root or vertebral artery injury and facet joint violation, as well as achievement of bicortical screw fixation, among the Roy-Camille technique, the Magerl technique, and the Kim's technique 5) .…”

Section: Introductionmentioning

confidence: 99%

“…In the Roy-Camille technique, a screw is inserted perpendicular to the posterior surface of the lateral mass, while in the Magerl technique, the screw is directed 25 degrees laterally, parallel to the superior facet joint. In addition, the Kim's technique : the modification of known other lateral mass screw techniques in which the screw is inserted parallel to the spinous process and its lateral angle is determined by axial angle of spinous process without fluoroscopic assistance was suggested by our senior author (KDH) 5) . Though these techniques have unique entrance points for screw insertion and trajectory, avoiding injury to the anatomical structure is still challenging.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Analysis of Three Different Cervical Lateral Mass Screw Fixation Techniques by Complications and Bicortical Purchase : Cadaveric Study

Baek

Park

Kim

2010

J Korean Neurosurg Soc

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Objective : The purpose of this study is to compare the incidence of possible complications of cervical lateral screw fixation and the achievements of bicortical purchase using the Roy-Camille, Magerl and the modified methods. Methods : Six fresh-frozen cervical spine segments were harvested. The Roy-Camille technique was applied to C3 and C4, and the Magerl technique was applied to C5, C6, and C7 of one side of each cadaver. The modified technique was applied to the other side of each cadaver. The nerve root injury, violation of the facet joint, vertebral artery injury, and the bicortication were examined at each screwing level. Results : No vertebral artery injury was observed in any of the three methods. One nerve root injury was observed in each cervical spine segment using the Roy-Camille method (8.3%), the Magerl method (5.6%), and the modified method (3.3%). Facet joint injuries were observed in two cervical spinal segments using the Roy-Camille method (16.7%) and three with the Magerl method (16.7%), while five facet joint violations occurred when using the modified method (16.7%). Bicortical purchases were achieved on ten cervical spinal segments with the Roy-Camille method (83.3%) and Magerl method (55.6%), while twenty bicortical purchases were achieved in the modified method (66.7%). Conclusion :The advantages of the modified method are that it is performed by using given anatomical structures and that the complication rate is as low as those of other known methods. This modified method can be performed easily and safely without fluoroscopic assistance for the treatment of many cervical diseases.

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“…Cho and kim 5) described no significant difference in the safety angles (mean angle less than 8˚) for avoiding vertebral artery injury among the RoyCamille, Magerl and the Kim's method.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Comparative Analysis of Three Different Cervical Lateral Mass Screw Fixation Techniques by Complications and Bicortical Purchase : Cadaveric Study

Baek

Park

Kim

2010

J Korean Neurosurg Soc

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Cervical lateral mass screw length analysis in men versus women

et al. 2021

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Posterior fixations with lateral mass screws have become popular. The Roy–Camille and the Magerl techniques have been established and screw length was identified as a particularly important element. Sex and ethnicity are significant factors in cervical spine morphology, but few studies have been performed for screw length. We performed measurements using computed tomography (CT) images of adult patients hospitalized for surgery of the cervical spine, with targeted 3D data analysis. The final number of patients was 47 (33 men, 14 women) and 235 vertebrae. With the Roy–Camille technique, the screw length was longest at C3 (men: 13.0 mm ± 1.9 mm, women: 13.0 mm ± 1.9 mm) and smallest at C7 (men: 10.8 mm ± 1.8 mm, women: 9.4 mm ± 1.2 mm). With the Magerl technique, the screw length was smallest at C3 (men: 14.8 mm ± 1.6 mm, women: 14.3 mm ± 1.6 mm) and longest at C7 for men (16.8 mm ± 2.8 mm), and at C6 for women (15.4 mm ± 3.0 mm). To differ from spinal canal or pedicle, cervical lateral mass showed no obvious morphological differences from that of subjects of other ethnicity. The placement of a standard lateral mass screw would not cause complications in Japanese patients, even with the use of devices designed in North America or Europe. However, the anatomical background is essential because it is important to optimize the selection for each patient to avoid complications considering sex and individual differences.

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Radiographic and clinical assessment of a freehand lateral mass screw fixation technique: is it always safe in subaxial cervical spine?

Min

2014

The Spine Journal

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Comparative Analysis of Cervical Lateral Mass Screw Insertion among Three Techniques in the Korean Population by Quantitative Measurements with Reformatted 2D CT Scan Images : Clinical Research

Cited by 12 publications

References 32 publications

Comparative Analysis of Three Different Cervical Lateral Mass Screw Fixation Techniques by Complications and Bicortical Purchase : Cadaveric Study

Comparative Analysis of Three Different Cervical Lateral Mass Screw Fixation Techniques by Complications and Bicortical Purchase : Cadaveric Study

Cervical lateral mass screw length analysis in men versus women

Radiographic and clinical assessment of a freehand lateral mass screw fixation technique: is it always safe in subaxial cervical spine?

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