title: THE USE OF PLATELET RICH PLASMA WITH BONE MARROW ASPIRATE IN PUDDU TIBIAL OSTEOTOMY.
abstract: OBJECTIVE
  The present study was performed in order to evaluate the use of platelet rich plasma associated to bone marrow aspirate, substituting autologous iliac bone graft in medial opening wedge osteotomy (OWHTO).
  
  
  METHODS
  Twenty-five patients were submitted to tibial opening wedge osteotomy, being divided into two groups. Iliac group: 14 patients submitted to OWHTO, using autologous iliac bone graft to fill the gap. PRP group: 11 patients using platelet rich plasma associated to bone marrow aspirate to fill the gap. We evaluated bleeding (hemoglobin and hematocrit levels) and pain (visual analogic scale-VAS), then we compared the groups regarding these variables.
  
  
  RESULTS
  Differences between the groups were not found regarding hemoglobin levels (p=0.820) and hematocrit levels (p=0.323). The groups were not different regarding pain measured with VAS (p=0.538).
  
  
  CONCLUSIONS
  The use of platelet rich plasma associated to bone marrow aspirate in medial opening wedge osteotomy did not offer advantages over autologous iliac bone graft regarding bleeding and pain.
authors.affiliation: Post-graduate Student, Department of Orthopedics and Traumatology, School of Medicine, USP.
authors.forename: Caio Oliveira
authors.initials: CO
authors.lastname: D'Elia
authors.affiliation: Assistant Physician, Knee Group, Institute of Orthopedics and Traumatology, HC/FMUSP.
authors.forename: Márcia Uchoa
authors.initials: MU
authors.lastname: de Rezende
authors.affiliation: Orthopedist, Institute of Orthopedics and Traumatology, HC/FMUSP.
authors.forename: Alexandre Carneiro
authors.initials: AC
authors.lastname: Bitar
authors.affiliation: Assistant Physician, Department of Hematology, HC/FMUSP.
authors.forename: Nelson
authors.initials: N
authors.lastname: Tatsui
authors.affiliation: Head, Knee Group, Institute of Orthopedics and Traumatology, HC/FMUSP.
authors.forename: José Ricardo
authors.initials: JR
authors.lastname: Pécora
authors.affiliation: Associate Professor, School of Medicine, Universidade de São Paulo.
authors.forename: Gilberto Luis
authors.initials: GL
authors.lastname: Camanho
keywords: Bone substitutes; Osteotomy; Platelet rich plasma; Tibia