Background: Tympanoplasty is the most common operation performed by an Otolaryngologist worldwide.Type 1 tympanoplasty involves repair of pars tensa of tympanic membrane, when the middle ear is normal. The most widely used method is underlay technique using temporalis facia. In buttonhole tympanoplasty, the temporalis fascia is anchored to the handle of malleus through the buttonhole.
Objective: To compare and analyze graft uptake and hearing outcome in button hole technique and underlay technique.
Material And Method: It is a comparative study done at tertiary care center, where patients suffering from tubotympanic type of chronic otitis media with medium sized perforation with moderate conductive hearing loss, within age group of 18-60 years,were selected.
Results: In Button hole tympanoplasty group the mean hearing gain was 9.3dB, and 8.17 dB in Underlay tympanoplasty group which was statistically significant (p < 0.05) but P value between Button hole and Underlay tympanoplasty was not statistically significant.With regard to graft uptake 96.7% showed graft uptake in Buttonhole tympanoplasty group and in underlay tympanoplasty the graft uptake was 93.3%.
Interpretation And Conclusion: Buttonhole technique is better in terms of graft uptake since the graft is anchored to the handle of malleus, and postoperatively medialisation of graft and other complications like lateralization of graft, epithelial pearl formation and anterior blunting is prevented. Both techniques are good in terms of hearing improvement for chronic otitis media with medium sized perforation with moderateconductive hearing loss.
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http://dx.doi.org/10.1007/s12070-023-04338-4 | DOI Listing |
Cureus
October 2024
Department of Orthopedic Surgery, Baba Memorial Hospital, Sakai, JPN.
First metacarpal subsidence often occurs after suture button suspensionplasty (SBS) for first carpometacarpal joint arthritis. In this study, we describe computed tomography (CT) findings in two cases of first metacarpal subsidence after SBS. Case 1 was a 51-year-old right-handed male.
View Article and Find Full Text PDFEye (Lond)
January 2025
Vitreoretinal Research Group, John van Geest Centre for Brain Repair, University of Cambridge, Cambridge, UK.
Background: Separation of the posterior hyaloid membrane (PHM) from the retina in posterior vitreous detachment (PVD) is a fundamental, but poorly understood, process underlying vitreoretinal disorders including retinal detachment and macular hole. We performed electron microscopy studies of the PHM after PVD to investigate its ultrastructure, associated cellular structures and relationship to the internal limiting membrane (ILM).
Methods: Post-mortem human eyes were collected from recently deceased patients over 70 years of age.
Heliyon
September 2024
Department of Materials Engineering, Materials & Energy Research Center, Dezful Branch, Islamic Azad University, Dezful, Iran.
In solid-state welding, the basis of joining is the combination of materials in the weld area using the tool. The tool pin is a key parameter that can facilitate tool penetration into the parts and result in better material mixing. On the other hand, the presence of the end cavity of the process can be a factor in reducing the mechanical properties of the weld.
View Article and Find Full Text PDFEur J Trauma Emerg Surg
October 2024
Department of Trauma Hand and Reconstructive Surgery Ulm University, Albert-Einstein-Allee 23, Ulm, 89081, Germany.
Purpose: The surgical treatment of acute traumatic AC joint dislocations is still a subject of scientific debate in the literature. The arthroscopically assisted stabilization procedure with a suture button system has been successfully established and is widely used in daily practice. It is minimally invasive and allows the anatomical reconstruction of the torn coracoclavicular ligaments in one step with a permanent implant that does not have to be removed in a second operation.
View Article and Find Full Text PDFTurk J Orthod
June 2024
İzmir Katip Çelebi University Faculty of Engineering and Architecture, Department of Biomedical Engineering, İzmir, Turkey.
Objective: To determine the optimum miniscrew head design in orthodontic treatments for primary stability and compare stress distribution on a representative bone structure.
Methods: Miniscrews with cross heads, mushroom-shaped heads, button heads, bracket heads, and through-hole heads were compared using finite element analysis. Miniscrews, whose three-dimensional drawings were completed using the SolidWorks computer-aided software package, were inserted in the bone block.
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