Biodegradacja węglowego implantu tchawicy w eksperymencie zwierzęcym
Journal Title: Otolaryngologia Polska - Year 2008, Vol 62, Issue 4
Abstract
Introduction. The radical treatment of tracheal stenosis comprises segmental resection and its reconstruction. The most successful type of reconstruction is the “end to end” technique. In cases with large tracheal defects (over 6 cm) this kind of reconstruction is impossible. From many years the adequate biomaterial is searched for the tracheal reconstruction. Most of the implanted biomaterials undergo biodegradation process. Aim. The aim of the study was to analyze the biodegradation process in carbon fi bers of prosthesis implanted in tracheal defects in animal experiment. Material and methods: We studied the prosthesis implanted in tracheal defects in sheep. The prosthesis were built with composite biomaterial composed of carbon fi bers and polisulfone. The observation period was 1, 2, 3, 4, 6, 8, 24 and 38 weeks. In the morphometric evaluations the breadth, curve width, fullness factor and mean grey level of carbon fibers were assessed. Results. The results showed that carbon fi bers undergo progressively degradation in animal environment. The width gradually decreased. The mean grey level in the fi rst three weeks decreased, but in the next period it increased. Conclusion. The carbon fibers of segmental tracheal prosthesis undergo gradually degradation process in biological environment expressed by decreasing of their dimensions connected with the lost of irregularities and changes of structure density.
Authors and Affiliations
Wojciech Ścierski, Grzegorz Namysłowski, Jerzy Nożyński, Lucyna Turecka, Maciej Misiołek, Eugeniusz Czecior, Grażyna Lisowska, Katarzyna Mrówka-Kata
Keywords
Related Articles
- EP ID EP51557
- DOI -
- Views 111
- Downloads 0
The assessment of hearing impairment in patients over 60 years of age using hearing aids
Objective: To assess the hearing impairment in people over 60 years old using hearing aids. This was a single-center study, but it is planned to extend it further to the whole country. Materials and methods: The study wa...
Late phoniatric results of treatment of patients with cleft palate operated on by one surgeon
Introduction. The aim of the study was the assessment of the late speech results the cleft palate patients. Material and methodic. From January 1987 to December 1996 the first author performed 268 cleft palate surgeries....
Selected inflammatory factors in material from the middle ear in chronic otitis media with effusion in children
<a href=# onclick=document.zmienLangPL.submit()>Abstract is available in Polish language</a>
Julian Kosiński (1833–1914) – especially meritous surgeon for the development of otorynolaryngology. His achievements in therapy of diseases of larynx
The achievements in surgical treatment of larynx diseases by Julian Kosiński (1833–1914), an eminent Warsaw surgeon, the head of Surgical Clinic in Main School and Warsaw Imperial University performed according to contem...
Our experience in the use of anterolateral thigh flap for reconstruction of the head and neck neoplasms
SUMMARY Introduction: Free flaps with vascular anastomosis have been widely used in clinical practice for more than 30 years. They are standard in reconstructive surgery following extensive resections caused by neoplasms...