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Supratotal Resection of Residual Clival Chordoma With Combined Endoscopic Endonasal and Contralateral Transmaxillary Approaches: 2-Dimensional Operative Video.
Supratotal Resection of Residual Clival Chordoma With Combined Endoscopic Endonasal and Contralateral Transmaxillary Approaches: 2-Dimensional Operative Video. Operative neurosurgery (Hagerstown, Md.) Lavigne, P., Wang, E. W., Fernandez-Miranda, J. C. 2018Abstract
The optimal treatment for skull base chordomas is gross total resection followed by radiotherapy and not radiation of partially resected tumors. Supratotal resection, defined as removal beyond all involved bone and dura, is ideal but difficult to achieve.In this video, we present the case of a 37-yr-old man with new onset of progressive cranial nerve sixth palsy and a skull base lesion compatible with clival chordoma. He underwent partial surgical resection at an outside institution via transcranial approach, with significant tumor residual at the clivus, dorsum sella, posterior clinoids, and petrous apex, extensive dural invasion, and intradural extension with attachment to the basilar artery and its long perforating branches.Supratotal surgical resection was achieved using an endoscopic endonasal transclival approach, ipsilateral transpteryoid approach to the foramen lacerum for carotid artery mobilization, bilateral interdural transcavernous approach with posterior clinoidectomies, and con-tralateral transmaxillary approach to the petrous apex. Reconstruction was performed in a multilayer fashion with fascia lata and fat grafts, extended nasoseptal flap, a lumbar drainage for 3 d. No cerebrospinal fluid leak occurred, and the abducens nerve palsy significantly improved at 3-mo follow-up. Proton therapy is planned.Recent advances in endoscopic endonasal surgery allow for very high rates of complete and even supratotal resection despite the challenging location. A long learning curve to acquire the technical skills and complex surgical anatomy is required to decrease complication rates and achieve maximal resection in chordomas. Reoperations are more challenging and risky; therefore, first attempt should have curative intent.The patient signed informed consent including the use of photographic and video material for educational or academic purposes.
View details for PubMedID 30189024