title: Percutaneous curettage and suction for pediatric extremity aneurysmal bone cysts: is it adequate?
abstract: BACKGROUND
  The purpose of our study was to evaluate the effectiveness of treating extremity aneurysmal bone cysts (ABC) by percutaneous curettage compared with open intralesional excision.
  
  
  METHODS
  A retrospective review of 17 patients with histologically proven primary ABCs and no evidence of a secondary lesion treated either by percutaneous curettage or open intralesional excision with at least 24-month follow-up was undertaken. The percutaneous curettage group was uniformly treated on an outpatient basis using angled curettes under image guidance followed by intralesional evacuation. The primary outcome was radiographic healing using the Neer/Cole 4-grade classification. Complications were noted.
  
  
  RESULTS
  Seventeen patients with a mean age of 11.7 years (range, 1.7 to 17.5) were evaluated. Nine patients underwent percutaneous curettage and 8 had an open intralesional excision. The 2 treatment groups were comparable with regard to age, sex, number of procedures, morphologic type of ABC, and follow-up period. At follow-up, the proportion of patients with satisfactory healing (Neer/Cole grades I and II) were similar among the 2 groups (P = 0.74). In the percutaneous curettage group, 2 cases recurred necessitating repeat procedures, whereas 1 case recurred in the open intralesional excision group and was successfully treated percutaneously.
  
  
  CONCLUSIONS
  Percutaneous curettage is a safe and minimally invasive alternative for extremity ABCs that can be performed as an outpatient procedure. Not all ABCs require wide exposure and an open intralesional excision.
  
  
  METHODS
  III.
authors.affiliation: The Hospital for Sick Children, Division of Orthopaedic Surgery, Toronto, ON, Canada. tibrahim.ortho@gmail.com
authors.forename: Talal
authors.initials: T
authors.lastname: Ibrahim
authors.forename: Andrew W
authors.initials: AW
authors.lastname: Howard
authors.forename: M Lucas
authors.initials: ML
authors.lastname: Murnaghan
authors.forename: Sevan
authors.initials: S
authors.lastname: Hopyan
mesh_terms: D000293:Adolescent; D000553:Ambulatory Care / Q000379:methods; D017824:Bone Cysts, Aneurysmal / Q000473:pathology / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D003475:Curettage / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D019060:Minimally Invasive Surgical Procedures / Q000379:methods*; D012189:Retrospective Studies; D013396:Suction / Q000379:methods; D016896:Treatment Outcome