Optimal ilio-sacral screw trajectory in paediatric patients : a computed tomography study / Mathilde Gaume in Acta Orthopaedica Belgica, Vol.87/2 (Juin 2021)

Public ISBD [article]  inActa Orthopaedica Belgica > Vol.87/2 (Juin 2021) . - p. 285-291 Titre : Optimal ilio-sacral screw trajectory in paediatric patients : a computed tomography study Type de document : texte imprimé Auteurs : Mathilde Gaume ; Mohamed Amine Triki ; C. Glorion ; Sylvain Breton ; L. Miladi Année de publication : 2021 Article en page(s) : p. 285-291 Note générale : https://doi.org/10.52628/87.2.12 Langues : Anglais (eng) Mots-clés : Ilio-sacral screws  pelvic fixation  computed tomography study  paediatric population Résumé : Pelvic fixation during procedures performed to treat spinal deformities in paediatric patients remains challenging. No computed tomography studies in paediatric have assessed the optimal trajectory of ilio- sacral screws to prevent screw malposition. We used pelvic computed tomography from 80 children divided into four groups : females <10 and ≥10 years and males <10 and ≥10 years. A secure triangular corridor parallel to the upper S1 endplate was delineated based on three fixed landmarks. The optimal screw insertion angle was subtended by the horizontal and the line bisecting the secure corridor. Student’s t test was applied to determine whether the optimal screw insertion angle and/or anatomical parameters were associated with age and/or sex. Mean optimal angle was 32.3°±3.6°, 33.8°±4.7°, 30.2°±5.0°, and 30.4°±4.7° in the younger females, younger males, older females, and older males, respectively. The mean optimal angle differed between the two age groups (p=0.004) but not between females and males (p=0.55). Optimal mean screw length was 73.4±9.9 mm. Anatomical spinal canal parameters in the transverse plane varied with age (p=0.02) and with sex in the older children (p=0.008), and those in the sagittal plane varied with sex (p=0.04). Age affected ilio-sacral screw positioning, whereas sex did not. Several anatomical spinal canal parameters varied with age and sex. These results should help to ensure safe and easy ilio-sacral screw placement within a secure corridor. Permalink : ./index.php?lvl=notice_display&id=96633 [article] Optimal ilio-sacral screw trajectory in paediatric patients : a computed tomography study [texte imprimé] / Mathilde Gaume ; Mohamed Amine Triki ; C. Glorion ; Sylvain Breton ; L. Miladi . - 2021 . - p. 285-291. https://doi.org/10.52628/87.2.12 Langues : Anglais (eng) in Acta Orthopaedica Belgica > Vol.87/2 (Juin 2021) . - p. 285-291 Mots-clés : Ilio-sacral screws  pelvic fixation  computed tomography study  paediatric population Résumé : Pelvic fixation during procedures performed to treat spinal deformities in paediatric patients remains challenging. No computed tomography studies in paediatric have assessed the optimal trajectory of ilio- sacral screws to prevent screw malposition. We used pelvic computed tomography from 80 children divided into four groups : females <10 and ≥10 years and males <10 and ≥10 years. A secure triangular corridor parallel to the upper S1 endplate was delineated based on three fixed landmarks. The optimal screw insertion angle was subtended by the horizontal and the line bisecting the secure corridor. Student’s t test was applied to determine whether the optimal screw insertion angle and/or anatomical parameters were associated with age and/or sex. Mean optimal angle was 32.3°±3.6°, 33.8°±4.7°, 30.2°±5.0°, and 30.4°±4.7° in the younger females, younger males, older females, and older males, respectively. The mean optimal angle differed between the two age groups (p=0.004) but not between females and males (p=0.55). Optimal mean screw length was 73.4±9.9 mm. Anatomical spinal canal parameters in the transverse plane varied with age (p=0.02) and with sex in the older children (p=0.008), and those in the sagittal plane varied with sex (p=0.04). Age affected ilio-sacral screw positioning, whereas sex did not. Several anatomical spinal canal parameters varied with age and sex. These results should help to ensure safe and easy ilio-sacral screw placement within a secure corridor. Permalink : ./index.php?lvl=notice_display&id=96633

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