title: USE OF BIOCERAMICS IN FILLING BONE DEFECTS.
abstract: OBJECTIVE
  To present the results from using biological ceramics for filling bone defects resulting from post-traumatic or orthopedic injuries.
  
  
  METHODS
  Thirty-six patients with bone defects caused by trauma or orthopedic injury were evaluated. Nineteen patients were male (52.8%) and 17 were female (47.2%). Their ages ranged from 19 to 84 years, with a mean of 45.7 years and median of 37 years. Only patients with defects that required at least five grams of biological ceramic were included. Eighteen cases were classified as orthopedic: bone defects were observed in 11 cases of total hip arthroplasty; one case of primary total hip arthroplasty, due to coxarthrosis; five cases of femoral or tibial open wedge osteotomy; and one case of tarsal arthrodesis. There were 18 cases of trauma-related defects; uninfected pseudarthrosis, eight cases; recent fractures of the tibial plateau with compression of the spongy bone, three cases; and exposed fractures treated with external fixators, seven cases. The surgical technique consisted of curetting and debriding the injury until bone suitable for grafting was found. Biological ceramic was then used to fill the defect and some kind of fixation was applied.
  
  
  RESULTS
  Among the 36 patients evaluated, it was seen that 35 (97.2%) presented integration of the biological ceramic, while one case of open fracture treated with external fixation had poor integration of the biological ceramic.
  
  
  CONCLUSIONS
  Treatment of bone defects of orthopedic or post-traumatic etiology using a phosphocalcium ceramic composed of hydroxyapatite was shown to be a practical, effective and safe method.
authors.affiliation: MSc and PhD in Orthopedics from Unifesp. Orthopedist and Head of the Residence Service, Hospital Sao Bento Cardioclínica S/A.
authors.forename: Carlos Antõnio
authors.initials: CA
authors.lastname: Garrido
authors.affiliation: MSc in Rehabilitation from Unifesp; PhD in General Pathology from UFMG. Resident Physician in Orthopedics and Traumatology, Hospital Sao Bento Cardioclínica S/A.
authors.forename: Tania Clarete Fonseca Vieira Sales
authors.initials: TC
authors.lastname: Sampaio
keywords: Biocompatible materials; Bone and bones/injuries; Ceramics; Durapatite