Morphological and functional results of Palisade Cartilage Tympanoplasty

Abstract

The application of cartilage in tympanoplasty has been generally accepted, because cartilage as a bradytrophic tissue allows stable and functionally reliable reconstruction of the eardrum even in difficult pathological conditions (such as subtotal defects, tympanosclerosis etc.). A special surgical technique using small cartilaginous chips for the reconstruction of the eardrum has been developed by J. Heermann, who introduced it as Palisade Cartilage Tympanoplasty (PCT). Although being increasingly applied in otosurgery, this technique has to date neither been evaluated regarding morphological and hearing results nor regarding its combination with titanium ossicular reconstruction prostheses. Therefore we reviewed 84 of 94 ears (92 patients, 58 female, 34 male) 12 to 36 months after PCT. A recurrent defect was seen in 2 ears (1 adhesive otitis, 1 subtotal defect). There were no extrusions of prostheses. Preoperatively an ear-bone-gap of 0-10 dB was seen in 2 ears, 11-30 dB in 48 and 31-59 dB in 34 ears. Postoperatively the corresponding numbers were 25, 50 and 9 ears. The low rate of recurrent tympanic membrane defects (2.4%) shows that palisade cartilage tympanoplasty is particularly appropriate for the management of difficult indications in middle ear surgery. Further, it could be demonstrated that the PCT can be combined safely with titanium ossicular reconstruction prostheses. Regarding postoperative hearing results the negative preselection of pathological conditions has to be considered.