Semi-Circular Canals Anomalies//Idiopathic Scoliosis

TL;DR

This study used a novel MRI-based modelling program to identify significant anomalies in the semi-circular canals of patients with idiopathic scoliosis, revealing new insights into the condition's possible neurological basis.

Contribution

Introduces a new MRI-based modelling approach to detect semi-circular canal anomalies in idiopathic scoliosis, including previously undescribed abnormal communications.

Findings

Severe anomalies mainly in lateral SCC related to trunk rotation and lateral deviations.

Frequent aplasias in the lateral canal of IS patients.

Discovery of abnormal communication between lateral and posterior canals.

Abstract

Thanks to a novel modelling programme to detect anomalies in the membranous semi circular canals (SSC) of idiopathic scoliosis (IS) we found severe anomalies mainly located in lateral SCC devoted to trunk rotation and lateral deviations. We also found a specific communication between the lateral and posterior canal involving the utricular chamber which is also highly suspected in scoliosis. Key points: - Membranous semi circular canals (SCC) modelling based on MRI revealed significant anomalies in IS patients compared to normal subjects. - Frequent aplasias located in the lateral canal were found in IS. - We also discovered a, never described, abnormal communication between lateral and posterior canal. - Lateral SCC is involved in trunk rotation and lateral deviation: these movements are frequently abnormal in IS. Supports: Fondation Yves Cotrel pour la recherche en pathologie rachidienne. Institut de France, Paris. SHFJ/CEA Orsay in the frame of the cooperation through IFR 49 INSERM/CNRS France.