title: Outcome of surgical treatment of pelvic osteosarcoma.
abstract: OBJECTIVE
  Surgical treatment of pelvic osteosarcoma is often challenging. The objective of this study was to assess the oncologic and functional outcome and the operation-related complications of patients with pelvic osteosarcoma who were treated in a single center in the past decade.
  
  
  METHODS
  Nineteen patients underwent surgical procedures between June 2000 and June 2009. There were 11 males and 8 females with a mean age of 30 years. According to Enneking and Dunham pelvic classification system, there were: Type I-3, Type I + IV-3, Type I + II-2, Type II + III-4, Type I + II+ III-1, Type III-1, and type I + II+ IV-5. All patients received chemotherapy.
  
  
  RESULTS
  Local recurrence rate was 26.3% (5/19). The 5-year overall survival rate was 44.9%. Seventeen patients received reconstruction after tumor resection. The average MSTS 93 score was 18 (10-23) for the 11 patients with hemipelvic endoprosthetic reconstruction and 23 (20-25) for 6 patients with rod-screw reconstruction. Complication was found in 7 of 19 patients (36.8%).
  
  
  CONCLUSIONS
  The oncological results of pelvic osteosarcoma are poor at best. Even with a higher complication rate, we believe restoration of pelvic ring continuity and hip joint mobility is reasonable option to achieve favorable functional outcomes in selected patients.
authors.affiliation: Musculoskeletal Tumor Center, People's Hospital, Peking University, Beijing 100044, China. bonetumor@163.com
authors.forename: Wei
authors.initials: W
authors.lastname: Guo
authors.forename: Xin
authors.initials: X
authors.lastname: Sun
authors.forename: Tao
authors.initials: T
authors.lastname: Ji
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Tang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000401:mortality / Q000601:surgery*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000401:mortality / Q000601:surgery*; D010384:Pelvic Bones / Q000601:surgery*; D012189:Retrospective Studies; D016896:Treatment Outcome