title: Is there a way to avoid surgical complications of twist drill craniostomy for evacuation of a chronic subdural hematoma?
abstract: BACKGROUND
  Although twist drill craniostomy for evacuation of a chronic subdural hematoma is a rapid and minimally invasive procedure, it carries the risk of complications because it is a 'blind' technique. Our aim was to analyse the complications in a series of patients treated by this technique in order to identify methods of avoidance by modifications in the surgical technique.
  
  
  METHODS
  Thirty-nine patients with a chronic subdural hematoma underwent twist drill craniostomy between November 2002 and December 2005 in our clinic. When a surgical complication happened we modified our surgical technique to see if this avoided it in future patients.
  
  
  RESULTS
  Surgical complications happened in 7 patients (17.9%) including inadequate drainage, brain penetration, acute epidural hematoma and catheter folding. After preventive modifications these complications did not recur.
  
  
  CONCLUSIONS
  Modifications in the technique of twist drill craniostomy are described in this paper which may minimise the occurrence of surgical complications.
authors.affiliation: Izmir Atatürk Research and Training Hospital, Izmir, Turkey. hsucu@yahoo.com
authors.forename: H K
authors.initials: HK
authors.lastname: Sucu
authors.forename: M
authors.initials: M
authors.lastname: Gökmen
authors.forename: A
authors.initials: A
authors.lastname: Ergin
authors.forename: H
authors.initials: H
authors.lastname: Bezircioğlu
authors.forename: A
authors.initials: A
authors.lastname: Gökmen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001930:Brain Injuries / Q000209:etiology / Q000517:prevention & control; D002404:Catheterization; D004322:Drainage; D004867:Equipment Design; D004868:Equipment Failure; D005260:Female; D006407:Hematoma, Epidural, Cranial / Q000209:etiology / Q000517:prevention & control; D020200:Hematoma, Subdural, Chronic / Q000601:surgery*; D006801:Humans; D007431:Intraoperative Complications / Q000209:etiology / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D014207:Trephining / Q000009:adverse effects* / Q000379:methods