Which upper limb orthosis frees the palm for feeling and grasping by curving around the second and fifth metacarpal heads and allows for the attachment of dorsal devices to create a dynamic device?

Which upper limb orthosis frees the palm for feeling and grasping by curving around the second and fifth metacarpal heads and allows for the attachment of dorsal devices to create a dynamic device?

• A. Dorsal wrist splint
• B. Palmar splint
• C. Airplane splint
• D. Wrist-driven prehension orthosis

Answer: (A)

The main idea is to keep the palm free for feeling and grasping while still providing stable wrist support and a ready base for dorsal attachments that create a dynamic device. A dorsal wrist splint sits on the back of the hand and wrist and curves around the second and fifth metacarpal heads, which leaves the palm surface unencumbered for sensation and grip. That dorsal surface then serves as a convenient anchor for attachments like springs or cables to form a dynamic system without restricting the palm. In contrast, palmar-focused splints cover the palm and impede sensation and grasp; other designs described for different indications don’t provide the same combination of palm accessibility and dorsal attachment capability.

The main idea is to keep the palm free for feeling and grasping while still providing stable wrist support and a ready base for dorsal attachments that create a dynamic device. A dorsal wrist splint sits on the back of the hand and wrist and curves around the second and fifth metacarpal heads, which leaves the palm surface unencumbered for sensation and grip. That dorsal surface then serves as a convenient anchor for attachments like springs or cables to form a dynamic system without restricting the palm. In contrast, palmar-focused splints cover the palm and impede sensation and grasp; other designs described for different indications don’t provide the same combination of palm accessibility and dorsal attachment capability.