An overview of hand postures and aging on morphological changes of the median nerve

Background High-resolution ultrasound is being widely used in carpal tunnel examination to understand morphological and biomechanical characteristics of the median nerve and surrounding anatomy structures. Main body Healthy young and elderly men were recruited. The median nerve at proximal wrist region was examined by ultrasound imaging technique. A total of seven wrist angle was examined. Generally, the median nerve cross-sectional area of the elderly group is significantly larger than the young group. Short conclusion Wrist posture in greater flexion or extension caused a larger decrease in the median nerve cross-sectional area across both groups.