主权项 |
1. An interbody spacer comprising:
a body portion defining a longitudinal axis, the body portion including a distal end portion, a proximal end portion, opposed side surfaces that extend between the distal and proximal end portions, and top and bottom surfaces configured and adapted to engage vertebral bodies; and first orifices defined through the top surface, the first orifices including orifices having first and second cross-sectional configurations, wherein the first orifices are arranged in rows extending along the longitudinal axis. |