An improved suture anchor is formed from body tissue. The body tissue is shaped
to a desired configuration for the anchor and defines a passage through the anchor.
A suture is inserted into the passage in the body tissue of the anchor. The anchor
is then positioned in a patient's body with a suture extending into the passage
in the anchor. The anchor may be formed of osseous body tissue, hard compact bone,
dense connective body tissue, or other body tissue. The body tissue may be dried
so that it absorbs fluid and expands upon being inserted into a patient's body.