| abstract |
The invention describes a bone anchor 76 comprising a head region 94 and supporting legs 78 and a method for soft tissue-bone grafting using the said bone anchor 76 . A hole 84 is drilled through cortical bone 82 forming a socket 70 in a cancellous bone 90 , and the bone anchor 76 is inserted therein thereby trapping ligaments 88 a and 88 b between the radially outermost portion of the anchor 76 and the inside surface of the socket 70 . An optional expansion peg (not shown) is inserted into a hole 86 within the bone anchor 76 , thereby causing the proximal ends of the legs 70 of the bone anchor 76 to expand radially causing the ligaments 88 a and 88 b to closely abut the cancellous bone 90 thereby encouraging the grafting process. |