A cruciate ligament suspension screw is provided to solve the problem where the ligament implant as implanted by the conventional surgery is prone to becoming loosened. The cruciate ligament suspension screw includes a hollow tube having at least one growth hole and a stopper structure, and a limiting member located in the hollow tube. The at least one growth hole extends through an inner surface to an outer surface of the hollow tube. The stopper structure is located on the outer surface of the hollow tube. Two ends of the limiting member connect to the inner surface of the hollow tube.一種十字韌帶懸吊內鎖式固定器，用以解決習知手術後韌帶植入物易發生鬆脫的問題。係包含：一中空管體，具有至少一誘導生長孔及一逆止結構，該至少一誘導生長孔貫穿該中空管體的一內壁面及一外壁面，該逆止結構位於該中空管體的外壁面；及一限位件，位於該中空管體內，該限位件的兩端連接該內壁面。
