PubMed · 13498562
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ZAPPALA, A SAVIO. [Persistent metopic suture].. https://pubmed.ncbi.nlm.nih.gov/13498562/
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Choristoma is a benign tumour defined as normal tissue in an ectopic location. Osseous choristoma, one subtype of this entity, occurring within the orbit has rarely been reported in the world literature. We report a 6-year-old girl with bilateral ocular osseous choristomas who presented with palpable nodules protruding from both upper lids. The radiological and clinical findings are described and previous reports are reviewed.
Superior canal dehiscence syndrome is a recently described condition resulting in noise- or pressure-induced vertigo. We review the case of a 50-year-old woman who presented with debilitating pressure and noise-induced vertigo as well as a low-frequency conductive hearing loss. Imaging was consistent with superior semicircular canal dehiscence syndrome. An extradural middle fossa approach was used to approach the dehiscent superior canal. Intraoperatively, our patient was found to have extensive idiopathic skull base dehiscence of the temporal floor. Middle ear and mastoid mucosa was exposed with focal areas of dura prolapsed into the mastoid cavity. Because of these findings, temporalis fascia and bone pate were used to cover the dehiscent canal as well as a large area of the temporal floor. Additionally, a temporalis muscle flap was rotated between the dura and the dehiscent temporal floor to reconstruct the middle fossa skull base and prevent encephalocele.
Gene therapy presents a novel approach to biological treatment. Several orthopaedic diseases can cause changes in biological signalling at the tissue level that potentially can be repaired or modified by inserting genes into the cells or tissues to modulate gene expression. Impaired bone healing, need for extensive bone formation, cartilage repair and metabolic bone diseases are all conditions where alterations of the signalling peptides involved may provide cure or improvement. In orthopaedic oncology, gene therapy may achieve induction of tumour necrosis and increased tumour sensitivity to chemotherapy. In the last decade, extensive improvements have been made to optimise gene therapy and have been tested on several orthopaedic conditions. How far this development has come in orthopaedics is highlighted in this paper.