title: BLEEDING OF FEMORAL HEAD DURING TOTAL HIP ARTHROPLASTY FOR OSTEOARTHROSIS.
abstract: OBJECTIVE
  To evaluate the bleeding of the femoral head on hip osteoarthritis in patients who underwent total hip arthroplasty.
  
  
  METHODS
  One hundred and three hips affected by primary hip osteoarthritis were evaluated. After surgical dislocation, the femoral head was divided into four quadrants, and micro perforations were made in order to observe and assess the presence of bleeding, as early type (EB), late type (LB) or without bleeding (WB).
  
  
  RESULTS
  We observed early bleeding (EB) in the upper quadrant in 16 hips (15.5%), late bleeding in 14 hips (13.6%) and no bleeding (WB) in 73 hips (70.9%). The anterior quadrant showed EB in 24 hips (23.3%), LB in 7 hips (6.8%) and WB in 72 hips (69.9%). The lower quadrant presented EB in 40 hips (38.8%), LB 14 hips (13.6%) and WB in 49 hips (47.6%). The posterior quadrant showed EB in 39 hips (37.9%), LB 19 hips (18.4%) and WB in 45 hips (43.7%). Comparing BMI and gender, we found no association between these parameters (p> 0.05).
  
  
  CONCLUSIONS
  The inferior and posterior quadrant had the highest bleeding levels, following the path of the medial circumflex artery. Level of Evidence III, Therapeutic Study.
authors.affiliation: Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil. ; Irmandade Santa Casa de Misericórdia de Porto Alegre, Orthopedic and Traumatology Service, Porto Alegre, RS, Brazil.
authors.forename: Carlos Roberto
authors.initials: CR
authors.lastname: Schwartsmann
authors.affiliation: Irmandade Santa Casa de Misericórdia de Porto Alegre, Orthopedic and Traumatology Service, Porto Alegre, RS, Brazil.
authors.forename: Leandro de Freitas
authors.initials: Lde F
authors.lastname: Spinelli
authors.affiliation: Irmandade Santa Casa de Misericórdia de Porto Alegre, Orthopedic and Traumatology Service, Porto Alegre, RS, Brazil.
authors.forename: Marco Yánez
authors.initials: MY
authors.lastname: Sotomayor
authors.affiliation: Irmandade Santa Casa de Misericórdia de Porto Alegre, Orthopedic and Traumatology Service, Porto Alegre, RS, Brazil.
authors.forename: Anthony Kerbes
authors.initials: AK
authors.lastname: Yépez
authors.affiliation: Irmandade Santa Casa de Misericórdia de Porto Alegre, Orthopedic and Traumatology Service, Porto Alegre, RS, Brazil.
authors.forename: Leonardo Carbonera
authors.initials: LC
authors.lastname: Boschin
authors.affiliation: Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil.
authors.forename: Marcelo Faria
authors.initials: MF
authors.lastname: Silva
keywords: Femur head; Hip/surgery; Osteoarthritis.