A medical implant device for attaching a flexible graft to a bone (2, 3), comprising: - at least a first insert comprising a synthetic osteoconductive and/or osteoinductive material, wherein the first insert extends along a first axis wherein the first insert is designed to be inserted into a bore hole of an associated bone in an insertion direction aligned with the first axis, and wherein the first insert comprises a lateral surface extending along the first axis of the first insert, wherein the lateral surface of the first insert is designed to contact its associated bone when the first insert is inserted into the bore hole of its associated bone, and wherein the first insert comprises a first recess in the form of a furrow, which furrow is formed in said lateral surface of the first insert and extends along the first axis, and wherein the first insert comprises a second recess in the form of a furrow, which furrow is formed in said lateral surface of the first insert and extends along the first axis, and wherein said second recess of the first insert is formed on a side of the lateral surface of the first insert facing away from the first recess of the first insert, - a first fixation means for fixing the first insert to its associated bone, wherein the first fixation means comprises a first elongated flexible member that is looped around the first insert, and a second elongated flexible member that is connected to the first elongated flexible member of the first fixation means, wherein the second elongated flexible member of the first fixation means is laid around the first elongated flexible member of the first fixation means, and wherein the second elongated flexible member of the first fixation means is connected to a plate member of the first fixation means, which plate member is designed to butt against said associated bone, and - a flexible graft, wherein the flexible graft is connected to the at least one first insert, wherein the flexible graft is an elongated member that is folded at least once so that the flexible graft comprises a plurality of strands extending along each other, wherein at least one strand is arranged in said first recess of the first insert, and wherein at least one strand is arranged in said second recess of the first insert, and wherein the flexible graft is laid around the first insert, wherein the flexible graft is threaded through a loop formed by the second elongated flexible member of the first fixation means. - at least a first insert comprising a synthetic osteoconductive and/or osteoinductive material, wherein the first insert extends along a first axis wherein the first insert is designed to be inserted into a bore hole of an associated bone in an insertion direction aligned with the first axis, and wherein the first insert comprises a lateral surface extending along the first axis of the first insert, wherein the lateral surface of the first insert is designed to contact its associated bone when the first insert is inserted into the bore hole of its associated bone, and wherein the first insert comprises a first recess in the form of a furrow, which furrow is formed in said lateral surface of the first insert and extends along the first axis, and wherein the first insert comprises a second recess in the form of a furrow, which furrow is formed in said lateral surface of the first insert and extends along the first axis, and wherein said second recess of the first insert is formed on a side of the lateral surface of the first insert facing away from the first recess of the first insert, - a first fixation means for fixing the first insert to its associated bone, wherein the first fixation means comprises a first elongated flexible member that is looped around the first insert, and a second elongated flexible member that is connected to the first elongated flexible member of the first fixation means, wherein the second elongated flexible member of the first fixation means is laid around the first elongated flexible member of the first fixation means, and wherein the second elongated flexible member of the first fixation means is connected to a plate member of the first fixation means, which plate member is designed to butt against said associated bone, and - a flexible graft, wherein the flexible graft is connected to the at least one first insert, wherein the flexible graft is an elongated member that is folded at least once so that the flexible graft comprises a plurality of strands extending along each other, wherein at least one strand is arranged in said first recess of the first insert, and wherein at least one strand is arranged in said second recess of the first insert, and wherein the flexible graft is laid around the first insert, wherein the flexible graft is threaded through a loop formed by the second elongated flexible member of the first fixation means.