title: Arthroscopic treatment of popliteal cyst.
abstract: OBJECTIVE
  To review the results of arthroscopic treatment of popliteal cysts in our centre and analyse outcomes including complications.
  
  
  METHODS
  Retrospective study.
  
  
  METHODS
  University teaching hospital, Hong Kong.
  
  
  METHODS
  From July 2007 to July 2009, 11 patients with symptomatic popliteal cysts were treated arthroscopically. All of them had preoperative magnetic resonance imaging to confirm the diagnosis, identify the valvular opening, and the associated intra-articular pathology. We used the Rauschning and Lindgren criteria for evaluation.
  
  
  RESULTS
  Intra-articular pathology like cartilage degeneration and meniscus tear were commonly associated with popliteal cysts. All patients achieved symptomatic improvement after treatment and the recurrence rate was low. No major complications were encountered. We failed to identify (and correct) any valvular opening in one patient.
  
  
  CONCLUSIONS
  From our experience, we conclude that arthroscopic treatment of popliteal cyst with correction of the valvular opening and treatment of associated intra-articular pathology is effective and safe.
authors.affiliation: Department of Orthopaedics and Traumatology, Queen Mary Hospital, Pokfulam, Hong Kong. chesterliewh@gmail.com
authors.forename: Chester W H
authors.initials: CW
authors.lastname: Lie
authors.forename: T P
authors.initials: TP
authors.lastname: Ng
mesh_terms: D000368:Aged; D001182:Arthroscopy / Q000009:adverse effects / Q000379:methods*; D005260:Female; D006723:Hong Kong; D006785:Hospitals, University; D006801:Humans; D007719:Knee Joint / Q000473:pathology / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011151:Popliteal Cyst / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications; D012008:Recurrence; D012189:Retrospective Studies; D016896:Treatment Outcome