Real color sectioned images and correspondence with ultrasound images of the dorsal wrist.

Background: This study integrated high-resolution sectioned images with ultrasound imaging to investigate the sequential anatomical transitions of the dorsal wrist, focusing on both bony morphology and the positioning of extensor tendons.

Materials and methods: As the shapes and articulations of carpal bones changed distally, corresponding shifts in tendon trajectories - such as the radial migration of the extensor pollicis longus tendon and the convergence of the extensor carpi ulnaris and extensor digiti minimi tendons - were consistently observed.

Results: These dynamic spatial relationships provide important clinical insights for differentiating normal anatomical variation from tendon displacement or injury.

Conclusions: By integrating detailed anatomical visualization with ultrasound assessment, this approach enhances diagnostic accuracy, supports safer minimally invasive procedures, and informs surgical planning for dorsal wrist pathologies.