LXXI Experimental Tracheal Implants

True enough segments of tracheas, if not too long, have been resected and restitution of continuity established by mobilizing the remaining proximal and distal segments thus enabling one to bring the severed ends together; and portions of the circumference have been restored by myself and others through the medium of a patch of fascia lata or skin and other materials as well, but the entire circumference of the trachea has not been successfully re-established as a rigid enough tube without the use of foreign materials as supporting structures.