A bone wedge is provided for fixing tissue to bone. The bone wedge comprises an elongate body with a proximal end a distal end and a longitudinal axis (A) which extends between said proximal end and said distal end. The elongate body comprises at least two opposed sidewall portions between the proximal and distal ends, wherein the bone wedge is configured to be inserted into a wedge shaped cavity in the bone, said wedge shaped cavity having a smaller diameter at its portion proximal to the bone surface than at its distal portion, and wherein said two opposed sidewall portions are configured to clamp the tissue against the inner walls of said cavity.