title: A new limb salvage surgery in cases of high-grade soft tissue sarcoma using photodynamic surgery, followed by photo- and radiodynamic therapy with acridine orange.
abstract: BACKGROUND
  To maintain excellent limb function after tumor resection in patients with high-grade malignant sarcomas, we developed and established a new surgical adjuvant therapy using acridine orange (AO) after intra-lesional or marginal resection while sparing normal tissues of major nerves, vessels or bones adjacent to the tumor.
  
  
  METHODS
  Our AO therapy procedure was combined with photodynamic surgery (PDS), photodynamic therapy (PDT) and radiodynamic therapy (RDT). In this study, 26 patients with primary high-grade soft tissue sarcomas were treated with AO therapy.
  
  
  RESULTS
  Results showed a low local recurrence rate (7.7%) and good local recurrence-free rate (88%) after AO therapy. Limb function of all patients was maintained at 100% of ISOLS criteria.
  
  
  CONCLUSIONS
  Based on these results, we concluded that AO therapy is useful for local control after margin-positive tumor resection and for preserving excellent limb function in patients with high-grade soft tissue sarcomas.
authors.affiliation: Department of Orthopaedic Surgery, Mie University Postgraduate School of Medicine, Tsu City, Japan. tomoki66@clin.medic.mie-u.ac.jp
authors.forename: Tomoki
authors.initials: T
authors.lastname: Nakamura
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Kusuzaki
authors.forename: Takao
authors.initials: T
authors.lastname: Matsubara
authors.forename: Akihiko
authors.initials: A
authors.lastname: Matsumine
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Murata
authors.forename: Atsumasa
authors.initials: A
authors.lastname: Uchida
mesh_terms: D000165:Acridine Orange / Q000627:therapeutic use*; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001859:Bone Neoplasms / Q000188:drug therapy / Q000532:radiotherapy / Q000628:therapy*; D002648:Child; D002675:Child, Preschool; D003131:Combined Modality Therapy; D005260:Female; D005456:Fluorescent Dyes / Q000627:therapeutic use*; D006801:Humans; D007223:Infant; D023821:Limb Salvage; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000517:prevention & control; D010778:Photochemotherapy; D018714:Radiotherapy, Adjuvant; D012509:Sarcoma / Q000188:drug therapy / Q000532:radiotherapy / Q000628:therapy*; D012983:Soft Tissue Neoplasms / Q000188:drug therapy / Q000532:radiotherapy / Q000628:therapy*; D016896:Treatment Outcome; D014964:X-Ray Therapy
chemical_list: D005456:Fluorescent Dyes; D000165:Acridine Orange