Cerebral palsy, a common physical disability in childhood, often causes abnormal patterns of movement and posture. To better understand the pathology and improve rehabilitation of patients, a comprehensive bone shape analysis approach is proposed in this article. First, a group analysis is performed on a clinical MRI dataset using two state-of-the-art shape analysis methods: ShapeWorks and a voxel-based method relying on Advanced Normalization Tools (ANTs) registration. Second, an analysis of three bones of the ankle is done to provide a complete view of the ankle joint. Third, a bone shape analysis is carried out at subject level to highlight variability patterns for personnalized understanding of deformities.

Cerebral palsy is a common physical disability in childhood that results in aberrant movement and postural patterns. To better understand the pathology and improve the rehabilitation of patients, this article comparatively studies the ankle short bones morphology with one of the state-of-the-art tools, ShapeWorks, and a deformationbased method. Experiments on a clinical dataset reveal calcaneus and talus deformity patterns, providing a guideline for clinical decisions.