An arrangement for inverse x-ray phase contrast imaging includes a photon-counting x-ray detector and a multibeam x-ray tube. The suture anchor preferably includes an anchor body with a passage extending from a proximal end toward a distal end, and at least one bone engaging feature on the exterior of the anchor. A push rod operates an integrally formed combination part located at the fork for providing functions of braking-blocking andor steering blocking formation. A second etch to remove the footings to target a predetermined critical dimension, wherein the second etch is selective to the metal oxide.