I have one in the same spot. It pinged off the metacarpal. Luckily it was a spent blow. Otherwise it would have gone through it, chipped it at the very least. On the other hand the bone kept the blade from biting deeper and the cut from being wider. A bit deeper and it would have hit a significant vein. It bled profusely and this worried me a bit considering the proximity of the vessel. It took three butterflies to hold it closed but it was a clean cut and healed rapidly.

A bit worse, or a location that was stressed more at rest, and stitching would have been the way to go. I hate stitching myself and press the service of steri-strips and butterflies farther than is proper even if I have to splint the hand for a couple of days to keep it from opening.

Superglue can be used to hold butterflies more firmly than their normal adhesive allows. Superglue alone might be used alone but it is easy to seal the wound and allow an infection to fester. The prospect that I may have nicked the bone and the proximity of the vein made the risk seem unwise. Had it been all meat underneath I would have been less careful.