If the broken pieces of the metacarpal are lined up well, it takes
six weeks for new, strong bone to form around the fracture site. This is generally true whether or not you have surgery.
Healing rates vary among patients depending on things like
- alignment of the fractured pieces
- how many pieces there are
- if the fracture pieces came through the skin or not
- smoking
- if the patient is moving or using the hand during the healing process or not