ABSTRACT
OBJECTIVE: Despite extensive soft tissue reduction, the most common complications associated with bone-anchored hearing aid systems, also known as bone-anchored hearing implants, are related to adverse skin reactions around the abutment. The necessary soft tissue reduction also adds complexity to the surgical procedure. This study aimed to evaluate the surgical and audiological outcomes of a new connective interface of the Cochlear™ Baha® BA400 device implanted using the one-stage surgical technique. METHOD: A multicentre, retrospective case series is presented, including data collected from three tertiary care institutions. RESULTS: In total, 16 patients who had undergone bone-anchored hearing aid surgery over a 10- to 12-month period were assessed for hearing performance, implant stability and surgical complications. CONCLUSION: This case series indicates that new abutments with a hydroxyapatite coating can be implanted percutaneously without soft tissue reduction. Furthermore, device implantation using this surgical technique may have some advantages compared with a conventional device and procedure combination over 12- to 16-months of follow up.
Subject(s)
Cochlear Implantation/instrumentation , Cochlear Implantation/methods , Cochlear Implants/adverse effects , Adolescent , Adult , Aged , Audiometry , Biocompatible Materials/administration & dosage , Child , Cochlear Implantation/adverse effects , Durapatite/administration & dosage , Female , Humans , Male , Middle Aged , Postoperative Complications/prevention & control , Prosthesis Design , Retrospective Studies , Soft Tissue Injuries/etiology , Soft Tissue Injuries/prevention & control , Suture Anchors , Treatment Outcome , Young AdultABSTRACT
Pneumatization of the inferior turbinate is an extremely rare intranasal anatomical variation. Only a few cases have been reported yet. In this paper we present two cases, one unilateral and one bilateral case with pneumatization of the inferior turbinate.
Subject(s)
Tomography, X-Ray Computed , Turbinates/abnormalities , Adult , Female , Humans , Nasal Obstruction/congenital , Nasal Obstruction/diagnostic imaging , Nasal Obstruction/surgery , Nasal Septum/abnormalities , Nasal Septum/diagnostic imaging , Nasal Septum/surgery , Rhinoplasty , Turbinates/diagnostic imaging , Turbinates/surgeryABSTRACT
OBJECTIVE: Reconstruction of laryngotracheal stenosis continues to pose a significant challenge. Cartilage grafts have been in use for almost a century, but despite good clinical results, many questions concerning the survival and growth of implanted cartilage persist. To reduce donor site morbidity, the use of homologous cartilage has been investigated. This study compared alcohol-stored homologous auricular cartilage with autologous auricular cartilage for anterior graft laryngotracheal reconstruction in a rabbit model. METHODS: Autologous and alcohol preserved homologous auricular cartilage was transplanted to the resected anterior tracheal wall of the twenty New Zealand rabbits. Rabbits were sacrificed 6 weeks after surgery and histologic analysis was performed on the implanted cartilage grafts. RESULTS: The autografts were significantly more likely than the homografts to demonstrate viable cells (95% vs. 30%, P<0.05) and less likely to exhibit significant resorption, fibrosis or necrosis (P<0.05). Resorption and necrosis were most common in areas of trauma to the graft. Complete epithelialization occurred in all of the autografts but in only 65% of the homografts (P<0.05). New cartilage formation and integration of the implanted grafts was poor with both types of grafts. CONCLUSION: Autologous cartilage appears to have better survival than alcohol preserved homologous cartilage when used for anterior graft laryngotracheal reconstruction in a rabbit model.
