title: Hemipelvectomy: a changing perspective for a rare procedure.
abstract: OBJECTIVE
  To compare the prognosis of patients undergoing a hemipelvectomy (HP) in the treatment of pelvic sarcomas and carcinomas and to review the morbidity and mortality associated with HP.
  
  
  METHODS
  Retrospective chart review.
  
  
  METHODS
  The Foothills Hospital, University of Calgary, Calgary, Alberta.
  
  
  METHODS
  Thirteen patients with clinically and radiographically isolated malignancies involving the bony pelvis and adjacent structures.
  
  
  METHODS
  Patients were treated with either an external HP (9 patients) or internal HP (4) in 1983-2001.
  
  
  METHODS
  Survival and recurrence rates for patients in 2 histopathologic groups (sarcoma v. carcinoma); morbidity and mortality associated with HP.
  
  
  RESULTS
  Hemipelvectomy was performed for 7 sarcomas (4 primary bone and 3 soft tissue) and 6 carcinomas (5 genital tract and 1 unknown primary). Seven of the 9 external HPs involved composite resection of other pelvic structures, including other pelvic viscera (3 patients), sacrum (3) and portions of lumbar vertebrae and nerves (1). There were no additional resections among the 4 internal HPs, but 3 patients had allograft reconstruction. Length of stay averaged 30 days (range 14-70 d). At least 1 complication occurred in 10 of 13 cases. The most common complication was flap necrosis occurring in 5 patients (38%). There was 1 perioperative death (8%). The survival of patients treated for sarcomas was better than for carcinomas, which were primarily of the genital tract. Only 1 of the patients with a pelvic sarcoma died of disease (86% disease-specific survival), with a median follow-up of 12 months (range 9-108 mo). Of the 7 sarcoma patients 5 were disease-free at last follow-up. One of 6 pelvic carcinoma patients died perioperatively, with another dying of unknown causes 4 months after surgery. Of the 4 remaining patients 3 died of disease, resulting in a median survival of 9 months (range 4-20 mo). Four of 6 patients with pelvic carcinomas developed recurrent disease, none local.
  
  
  CONCLUSIONS
  HP has considerable morbidity but is a viable and potentially curative treatment for patients with pelvic sarcomas. With pelvic carcinomas HP was not curative, but did provide short-term local disease control. Future improvements in imaging techniques and quality-of-life studies may help with patient selection. The role of HP in recurrent carcinoma remains to be determined.
authors.affiliation: Division of General Surgery, Department of Surgery, St. Paul's Hospital, University of British Columbia, Vancouver, BC. cbaliski@providencehealth.bc.ca
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Baliski
authors.forename: Norman S
authors.initials: NS
authors.lastname: Schachar
authors.forename: J Gregory
authors.initials: JG
authors.lastname: McKinnon
authors.forename: Gavin C
authors.initials: GC
authors.lastname: Stuart
authors.forename: Walley J
authors.initials: WJ
authors.lastname: Temple
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D006428:Hemipelvectomy / Q000009:adverse effects* / Q000401:mortality*; D017052:Hospital Mortality; D006801:Humans; D008875:Middle Aged; D010386:Pelvic Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications; D011379:Prognosis; D012189:Retrospective Studies; D012509:Sarcoma / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D015996:Survival Rate; D013997:Time Factors