What fixation method was used for the left fifth metacarpal base fracture?

• A. Closed reduction pin fixation with a K-wire
• B. Open reduction and internal fixation with a plate
• C. External fixation
• D. Casting

Answer: (A)

Stability with minimal soft-tissue disruption is the goal in metacarpal base fractures, so once a closed reduction is achieved, percutaneous pin fixation with a K-wire provides solid stabilization without the added trauma of a larger implant. This approach holds the reduced base fragment in place, accommodates early finger motion to reduce stiffness, and is especially suitable when the fracture is unstable or involves the joint surface but does not require open reconstruction. Casting alone often cannot maintain alignment in unstable base fractures, and open reduction with plating is more invasive and is reserved for cases needing precise articular reconstruction or when percutaneous fixation cannot maintain reduction. External fixation is typically used for severe soft-tissue injury or highly comminuted fractures. Therefore, closed reduction with pin fixation using a K-wire is the most appropriate, balancing control of the fracture with a minimally invasive approach.