title: En bloc resection of a multilevel high-cervical chordoma involving C-2: new operative modalities: technical note.
abstract: En bloc resection of cervical chordomas has led to longer survival rates but has resulted in significant morbidities from the procedure, especially when the tumor is multilevel and located in the high-cervical (C1-3) region. To date, there have been only 5 reported cases of multilevel en bloc resection of chordomas in the high-cervical spine. In this technical report the authors describe a sixth case. A complete spondylectomy was performed at C-2 and C-3 with spinal reconstruction and stabilization, using several new modalities that were not used in the previous cases. The use of 1) preoperative endovascular sacrificing of the vertebral artery, 2) CT image-guidance, 3) an ultrasonic aspirator for skeletonizing the vertebral artery, and 4) the custom design of an anterior cage all contributed to absence of intraoperative or long-term (20 months) hardware failure and pseudarthrosis.
authors.affiliation: Department of Neurosurgery, The Kaiser Permanente Medical Group, Sacramento, California, USA. kguppy@yahoo.com
authors.forename: Kern H
authors.initials: KH
authors.lastname: Guppy
authors.forename: Indro
authors.initials: I
authors.lastname: Chakrabarti
authors.forename: Richard S
authors.initials: RS
authors.lastname: Isaacs
authors.forename: Jae H
authors.initials: JH
authors.lastname: Jun
mesh_terms: D002574:Cervical Vertebrae / Q000473:pathology / Q000601:surgery*; D002817:Chordoma / Q000473:pathology / Q000601:surgery*; D057510:Endovascular Procedures / Q000295:instrumentation / Q000379:methods; D005260:Female; D006801:Humans; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000295:instrumentation / Q000379:methods*; D019637:Orthopedic Procedures / Q000295:instrumentation / Q000379:methods*; D019736:Prostheses and Implants / Q000592:standards*; D013125:Spinal Neoplasms / Q000473:pathology / Q000601:surgery*; D025321:Surgery, Computer-Assisted / Q000295:instrumentation / Q000379:methods*; D016896:Treatment Outcome; D014711:Vertebral Artery / Q000473:pathology / Q000601:surgery