Cases have been reported in which a stapedectomy prosthesis has loosened and slipped into the vestibule, causing damage there with resulting vertigo and deafness. Therefore, it is of utmost importance that the stapedectomy prosthesis used is safely and firmly locked to the long process of the incus. The "wing-grip" prosthesis previously described by me1 is fairly safe and, as far as is known, has not yet loosened in a single case. To increase safety still further, a new tube prosthesis has been developed. It is prepared from polyethylene or Teflon tubing, which can easily be cut during operation or in advance to suit the required size and shape. The inner diameter of the tube is 0.045 inches, and the outer is 0.062 inches. Length can be varied individually; it is generally from 3.5 to 5 mm.
The necrosis seen in some
URPO SIIRALA. A Safe Self-Locking Stapedectomy Prosthesis. Arch Otolaryngol. 1965;82(1):81–82. doi:10.1001/archotol.1965.00760010083020