title: [Spinal cord compression by a cervical oseteocartilaginous exostosis: surgical strategy aspects].
abstract: OBJECTIVE
  The authors present the therapeutic management of a 12-year-old boy with known hereditary multiple exostosis syndrome (HME), who developed spinal cord compression symptoms caused by an exostosis of the C2 lamina. A perinatal brain lesion with tetraparesis delayed the recognition of the spinal cord compression substantially, which resulted in an extensive spur-like growth of the exostosis.
  
  
  METHODS
  In comparison with already published cases, this growth pattern was rather unique and required consideration on the best surgical management. We decided to monitor the spinal cord function from positioning of the patient to skin closure and to modify the surgical steps of the laminectomy with initial lateral cutting of both hemilaminae.
  
  
  RESULTS
  Electrophysiological monitoring helped to avoid spinal cord compression by inadequate head anteflexion during positioning. Lateral cutting of the hemilaminae C2 resulted in spontaneous extrusion of the exostosis with immediate improvement of the electrophysiological findings. The boy experienced a prompt improvement of his neurological deficits.
  
  
  CONCLUSIONS
  The good surgical and clinical result confirm the value of the applied management concept.
authors.affiliation: Neurochirurgische Klinik und Institut für Neuropathologie (BS), Universitätsklinik Aachen. vrohde@ukaachen.de
authors.forename: V
authors.initials: V
authors.lastname: Rohde
authors.forename: P
authors.initials: P
authors.lastname: Reinacher
authors.forename: E
authors.initials: E
authors.lastname: Patz
authors.forename: B
authors.initials: B
authors.lastname: Sellhaus
authors.forename: J M
authors.initials: JM
authors.lastname: Gilsbach
mesh_terms: D002574:Cervical Vertebrae / Q000601:surgery; D002648:Child; D005071:Evoked Potentials; D005097:Exostoses, Multiple Hereditary / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery*; D007430:Intraoperative Care / Q000379:methods*; D007796:Laminectomy / Q000379:methods*; D008297:Male; D010346:Patient Care Management / Q000379:methods; D013117:Spinal Cord Compression / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery*; D016896:Treatment Outcome