Kleinsasser, Norbert H. and Wild, Peter J. and Alvarez, J. Carmelo Perez and Seidler, Till O. and Schurr, Christian and Froelich, Katrin and Hacki, Tamas and Hofstaedter, Ferdinand and Graf, Matthias A. and Hagen, Rudolf (2007) Extrusion forces of resorbable tacks and titanium screws in laryngeal chondrosynthesis. EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY, 264 (4). pp. 409-413. ISSN 0937-4477,
Full text not available from this repository. (Request a copy)Abstract
Laryngotracheal trauma, partial laryngectomy and phonosurgery may necessitate reconstruction of the cartilaginous skeleton to ensure the quality of respiration and voice. The present report focuses on initial experience gained with a new resorbable material for plates and tacks that allows chondrosynthesis of the laryngeal skeleton. A comparison of the extrusion forces necessary to pull out the resorbable tacks versus conventional titanium screws and the degree of deformation until failure represent the experimental parameters of reconstruction quality under investigation. The PolyMax system (Synthes, Oberdorf, Switzerland) was used in a human cadaver dissection. Sixteen tacks with a diameter of 1.5 mm and sixteen titanium screws with a diameter of 1 mm were placed into the two wings of the thyroid cartilage. Extrusion forces and the degree of deformation occurring until mechanical failure of the device-body interface were measured for the two types of fixation systems. Results in N and mm were compared using a two-sided Wilcoxon test. Neither variable differed significantly between the two groups. However, within the two groups, the necessary strength to pull the tacks or the screws out of the cartilage varied markedly depending on both the inhomogeneous quality of cartilage and the degree of calcification. The PolyMax system with the tacks is recommended as an effective tool for reconstructing the cartilaginous skeleton of the larynx and the trachea with the inherent advantage of resorption as well as avoidance of a second surgery for material removal.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | IN-VITRO DEGRADATION; MANDIBULAR FRACTURES; PLATE OSTEOSYNTHESIS; RECONSTRUCTION; REDUCTION; CARTILAGE; EFFICACY; IMPLANTS; TRAUMA; laryngo-tracheal trauma; partial resection; resorbable chondrosynthesis; extrusion forces |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Hals-Nasen-Ohren-Heilkunde Medicine > Lehrstuhl für Pathologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Dec 2020 07:47 |
| Last Modified: | 16 Dec 2020 07:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32938 |
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