Final answer:
An ulnar gutter splint is used for fractures of the fourth or fifth metacarpal bones, providing immobilization and pain relief during the healing process, while allowing for some finger movement.
Step-by-step explanation:
The splint commonly used for fractures of the neck, shaft, and base of the fourth or fifth metacarpals is known as an ulnar gutter splint. It is designed to immobilize the affected metacarpal bones to promote proper healing. When a fracture occurs in the fourth or fifth metacarpals, an ulnar gutter splint can be applied directly to the skin or over a layer of padding. It typically extends from just below the elbow to the proximal interphalangeal joints, effectively limiting movement while allowing the fingers some range of motion. The splint stabilizes the area and decreases pain, which is crucial for fractures in these bones due to their role in hand motion and power gripping.
It is important to note that fractures involving these bones need careful management because of the mobility and specific function associated with them, particularly the fifth metacarpal which greatly contributes to the strength of contact for the medial hand during gripping actions. Correct treatment using an ulnar gutter splint and following a doctor's advice for the care and rehabilitation of a metacarpal fracture is essential, as the metacarpal bones have distinct structural and functional characteristics that impact movement and grip. These fractures, if not properly treated, could impair hand function, underscoring the importance of selecting the appropriate splint and following a guided healing process.