Switching from a percutaneous to a transcutaneous bone anchored hearing system: the utility of the fascia temporalis superficialis pedicled flap in case of skin intolerance.

OBJECTIVES: To present the option to use a Fascia Temporalis Superficialis pedicled flap for the implantation of a transcutaneous magnetic osseointegrated auditory implant in selected revision procedures. BACKGROUND: Osseointegrated auditory implants represent a reliable option for patients. Skin intolerance and aesthetic issue are two clear limitations of percutaneous system. Magnetic transcutaneous devices have been developed to overcome such drawbacks. The current new experience of such a device shows that they are well tolerated in primary cases. However, switching from a previous percutaneous system raises the question of skin tolerance. Hence, previous implanted abutments with skin penetration and skin reduction are more likely cause to skin intolerance and complication. METHODS: We described here the option to use a Fascia Temporalis Superficialis flap to cover the implanted magnet. CONCLUSION: When switching from percutaneous osseointegrated auditory implant to transcutaneous system in case of high risk of skin intolerance, this procedure may provide sufficient tissue coverage to prevent skin intolerance, pain and delayed extrusion.

Late pneumolabyrinth after undiagnosed post-traumatic perilymphatic fistula. Case report illustrating the importance of systematic emergency management.

INTRODUCTION: Temporal bone fracture is a common complication of high-energy cranial trauma. Labyrinth involvement is rare, but there is a risk of perilymphatic rupture that is often underestimated on initial clinical examination due to the predominance of neurological and/or somatic symptoms. CASE REPORT: A patient presented with overlooked perilymphatic fistula, decompensated by hyperpressure effort due to poorly adapted management. DISCUSSION: Following a review of the literature on post-traumatic pneumolabyrinth, overall management (from diagnosis to treatment, via prevention advice) was analyzed. A constructive critique of the patient's treatment was thus made. CONCLUSION: We argue for a systematic management protocol in cranial trauma with temporal bone fracture, comprising ENT examination, millimetric-scale cross-sectional imaging of the fracture site, and standardized counseling to prevent late complications.