title: Surgical treatment of grade I central chondrosarcoma.
abstract: The grade of chondrosarcoma relates to the likelihood of local recurrence and metastases. Many Grade I chondrosarcomas behave benignly if aggressively, and the question arises regarding whether wide resection is essential to control the disease. We therefore asked whether intralesional surgery also could be extended to Grade I chondrosarcomas without an increase in recurrence. We retrospectively reviewed 31 patients with Grade I chondrosarcomas of the limbs. The minimum followup was 66 months (mean, 157 months; range, 66-296 months). None of the 16 patients treated by resection had recurrences during the followup and two of the 15 patients with intralesional excision had recurrences, both of which resolved with resection of the site involved by the recurrence without progression of the disease. The Musculoskeletal Tumor Society scores averaged 72% in patients treated with wide resection compared with 89% in the 15 patients treated by intralesional surgery. The two recurrences occurred in patients whose radiographs showed thinning of the cortex combined with bone enlargement and marked endosteal scalloping; histologic examination in these two patients also showed a correlation between radiographic aggressiveness and the presence of myxoid areas and hypercellularity.
  
  
  METHODS
  Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.
authors.affiliation: Musculoskeletal Oncology Department, Rizzoli Orthopaedic Institute, via Pupilli 1, 40136, Bologna, Italy. davide.donati@ior.it
authors.forename: Davide
authors.initials: D
authors.lastname: Donati
authors.forename: Simone
authors.initials: S
authors.lastname: Colangeli
authors.forename: Marco
authors.initials: M
authors.lastname: Colangeli
authors.forename: Claudia
authors.initials: C
authors.lastname: Di Bella
authors.forename: Franco
authors.initials: F
authors.lastname: Bertoni
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D019643:Arthroplasty, Replacement; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D016025:Bone Transplantation; D002813:Chondrosarcoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D003475:Curettage; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D006801:Humans; D006811:Humerus / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D019637:Orthopedic Procedures / Q000009:adverse effects; D010027:Osteotomy; D011859:Radiography; D012086:Reoperation; D012189:Retrospective Studies; D013977:Tibia / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult