Implant for planar connection of tissue to bone, wherein the implant comprises a clamping surface, wherein the clamping surface comprises an outer edge and an inner edge, wherein the outer edge is connected at least partially to the inner edge at least partially by means of at least one connecting web, and/or in that the clamping surface comprises an outer edge and at least one opening arranged within the clamping surface, wherein the opening comprises an inner edge which is connected by means of at least one connecting web at least to a partial area of the outer edge of the clamping surface, wherein the clamping surface has a circular or oval or polygonal circumference, in particular a rotationally symmetrical and/or mirror-symmetrical contour, wherein the clamping surface has a further opening (7', 7"), wherein the further opening (7', 7'') is designed for receiving a securing means, wherein the securing means comprises a pin, a head and a neck, wherein the clamping surface comprises at least one projection, wherein the projection is offset with respect to the clamping surface, wherein the projection has at least one opening (16, 19), wherein the opening in the projection is designed for receiving a securing means, and wherein a further opening in the projection is designed as a cutout, wherein the clamping surface comprises a plurality of fixing means (6', 6", 6′′′, 6ʺʺ), wherein the fixing means (6', 6", 6′′′, 6ʺʺ) are formed on an underside of the clamping surface, in particular perpendicularly to the clamping surface characterized in that the fixing means (6', 6", 6′′′, 6ʺʺ) are formed with a length of more than 2 millimeters, preferably with a length of between 2 and 6 millimeters in such a manner that, by the fixing means penetrating the tissue and subsequently being supported on the bone, an excessive contact pressure of the implant is prevented and at the same time a particularly secure and stable fixing of tissue on bone is ensured. wherein the outer edge is connected at least partially to the inner edge at least partially by means of at least one connecting web, and/or in that the clamping surface comprises an outer edge and at least one opening arranged within the clamping surface, wherein the opening comprises an inner edge which is connected by means of at least one connecting web at least to a partial area of the outer edge of the clamping surface, the clamping surface has a circular or oval or polygonal circumference, in particular a rotationally symmetrical and/or mirror-symmetrical contour, wherein the clamping surface has a further opening (7', 7"), wherein the further opening (7', 7'') is designed for receiving a securing means, wherein the securing means comprises a pin, a head and a neck, wherein the clamping surface comprises at least one projection, wherein the projection is offset with respect to the clamping surface, wherein the projection has at least one opening (16, 19), wherein the opening in the projection is designed for receiving a securing means, and wherein a further opening in the projection is designed as a cutout, wherein the clamping surface comprises a plurality of fixing means (6', 6", 6′′′, 6ʺʺ), wherein the fixing means (6', 6", 6′′′, 6ʺʺ) are formed on an underside of the clamping surface, in particular perpendicularly to the clamping surface characterized in that the fixing means (6', 6", 6′′′, 6ʺʺ) are formed with a length of more than 2 millimeters, preferably with a length of between 2 and 6 millimeters in such a manner that, by the fixing means penetrating the tissue and subsequently being supported on the bone, an excessive contact pressure of the implant is prevented and at the same time a particularly secure and stable fixing of tissue on bone is ensured.