title: Symptomatic intraosseous lipoma in the calcaneus.
abstract: BACKGROUND
  Intraosseous lipoma remains a poorly-characterized tumor. In paticular, the natural course of intracalcaneus lipoma after conservative treatment and the appropriate surgical modalities are still quite controversial.
  
  
  METHODS
  We reviewed six symptomatic patients who underwent curettage of intracalcaneus lipoma followed by grafting of α- or β-tricalcium phosphate. An endoscopically-assisted technique was used in one case.
  
  
  RESULTS
  All patients experienced heel pain that increased acutely after minor trauma. Heel pain disappeared soon after surgery in five cases. One patient experienced short-term mild chronic regional pain syndrome for short term. β-tricalcium phosphate was completely resorbed and remodeled after transplantation.
  
  
  CONCLUSIONS
  Surgical treatment is indicated for cases that are: i) symptomatic, ii) larger than the critical size, and iii) prone to pathological fracture. Curettage of intracalcaneus lipoma involving an endoscopically-assisted technique and filling of the defect with β-tricalcium phosphate is a feasible method and is minimally-invasive for the patient.
authors: Department of Orthopedic Surgery, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan. muramatu@yamaguchi-u.ac.jp.
authors: Keiichi
authors: K
authors: Muramatsu
authors: Yasuhiro
authors: Y
authors: Tominaga
authors: Takahiro
authors: T
authors: Hashimoto
authors: Toshihiko
authors: T
authors: Taguchi
mesh_terms: D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000473:pathology / Q000601:surgery*; D002111:Calcaneus / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008067:Lipoma / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D055815:Young Adult
keywords: Intraosseous lipoma; calcaneus; endoscopy; β-tricalcium phosphate