Making an incision in the palm of the patient adjacent to the distal edge of the transverse carpal ligament; Shrinking the incision until a distant portion of the ligament of the medial malleolus is visible; Providing a carcass tunnel cutter having a blade shielded at its end by a pair of tortuous protrusions projecting from the blade; Placing a portion of a tunnel cutter of a carpenter in the incision so that the protrusion spans the ligament of the carpal sinus and the blade is positioned opposite the ligament; Advancing the tunnel cutter of the carousel toward the wrist of the patient until the ligament of the carpal root is completely divided; And pulling out a tunnel cutter from the patient. The present invention also relates to a tunnel cutter for a carcass that is suitable for a tunnel release method.
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