Comput. Aided Surg. - Preoperative design of expansive open-door laminoplasty: a computer-assisted morphometric analysis.

Tópicos

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Resumo

Whereas the expansive open-door laminoplasty (EL) has been applied widely and the bone gutter on the hinge side is essential for EL, little is known regarding the mandatory width of the bone gutter. This study addressed the essential parameters of bone gutters for EL. Preoperative axial CT images of 20 patients suffering from cervical myelopathy were downloaded and entered into a computer. EL was then simulated using a computer-assisted technique and the thickness of the laminae at the gutter sites was measured. Accordingly, the width of the bone gutter was linked mathematically with the angle of the lifted lamina and the thickness of the lamina at the lamina-lateral mass junction. Furthermore, the average thickness of the laminae at the gutter site was 6.19 mm, and the appropriate bone gutter for EL was 5.13 to 7.15 mm. The width of the bone gutter can thus be planned precisely preoperatively, which may help improve the safety and accuracy of expansive open-door laminoplasty.

Resumo Limpo

wherea expans opendoor laminoplasti el appli wide bone gutter hing side essenti el littl known regard mandatori width bone gutter studi address essenti paramet bone gutter el preoper axial ct imag patient suffer cervic myelopathi download enter comput el simul use computerassist techniqu thick lamina gutter site measur accord width bone gutter link mathemat angl lift lamina thick lamina laminalater mass junction furthermor averag thick lamina gutter site mm appropri bone gutter el mm width bone gutter can thus plan precis preoper may help improv safeti accuraci expans opendoor laminoplasti

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