Methods and devices are disclosed for the attachment of a soft tissue structure (e.g., tendon or ligament) to bone or a prosthetic implant. In one form, the device includes a clamp having a convex tissue engaging surface. A fastener compresses the soft tissue between the tissue engaging surface and the bone or the prosthetic implant. In another form, the device includes a second clamp comprising a porous metallic material. The second clamp has a first surface, a concave tissue engaging surface opposite the first surface, and a throughhole for a fastener. The second clamp is placed adjacent the bone, the soft tissue is placed adjacent the second clamp, and the first clamp is placed adjacent the soft tissue. The soft tissue is compressed between the convex tissue engaging surface of the first clamp and the concave tissue engaging surface of the second clamp using the fastener.