title: [Semiological features and risk factors associated with osteoarthritis of the hip in Ouagadougou (Burkina Faso)].
abstract: OBJECTIVE
  To study the epidemiological and clinical aspects of osteoarthritis (OA) of the hip in Ouagadougou, as well as its risk factors.
  
  
  METHODS
  This retrospective study covered cases treated over a 3-year period (February 2006 through January 2009) in the internal medicine department of the Yalgado Ouedraogo Teaching Hospital of Ouagadougou (Burkina Faso) and the surgery department of the private hospital Notre-Dame-de la Paix of Ouagadougou. All patients included had OA of the hip that met the Kellgren and Lawrence criteria.
  
  
  RESULTS
  There were 46 patients who met the study criteria, but only 40 files could be used. The patients' mean age was 46.4 years ± 15.2 years (range 25-80 years; 10 patients were older than 56 years). Men accounted for more than half (n=23, 57.5%). The mean duration of disease was 6.2 years ± 4.5 years (range: 1-19 years). The right hip alone was concerned in 20 patients (50%), the left hip in 16 (40%), and the OA was bilateral in four (10%). Seventeen patients had sickle cell disease (42.5%), 11 SC and 6 SS. The risk factors included necrosis of the femoral head in 19 cases (59.37%), hip dysplasia in 6 (18.74%), hip trauma in 3 (9.37%), inflammatory arthropathy in 3 more (9.37%), and epiphysitis in one (3.13%). The OA of the hip was primary in 8 cases (20%). Three patients were at stage 1, 9 at stage 2, 15 at stage 3, and 13 at stage 4 according to the Arlet-Ficat classification.
  
  
  CONCLUSIONS
  OA of the hip arises in a young population and is dominated by secondary OA. The dominant risk factor was aseptic necrosis of the femoral head associated with sickle cell disease. In view of the small number of patients with primary OA, no definitive conclusions can be drawn about it.
authors.affiliation: Service de médecine interne, centre hospitalier universitaire Yalgado-Ouédraogo, 09 BP 628, 09 Ouagadougou 09, Burkina Faso.
authors.forename: D D
authors.initials: DD
authors.lastname: Ouédraogo
authors.affiliation: Département d'anatomie et d'organogenèse de l'UFR.
authors.forename: T
authors.initials: T
authors.lastname: Ouédraogo
authors.affiliation: Service de médecine interne, centre hospitalier universitaire Yalgado-Ouédraogo, 09 BP 628, 09 Ouagadougou 09, Burkina Faso.
authors.forename: H
authors.initials: H
authors.lastname: Tiéno
authors.affiliation: Service de médecine interne, centre hospitalier universitaire Yalgado-Ouédraogo, 09 BP 628, 09 Ouagadougou 09, Burkina Faso.
authors.forename: J
authors.initials: J
authors.lastname: Zabsonré-Tiendrébéogo
authors.affiliation: Département d'anatomie et d'organogenèse de l'UFR.
authors.forename: C
authors.initials: C
authors.lastname: Pédro
authors.affiliation: Service de médecine interne, centre hospitalier universitaire Yalgado-Ouédraogo, 09 BP 628, 09 Ouagadougou 09, Burkina Faso.
authors.forename: J
authors.initials: J
authors.lastname: Draho
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D000755:Anemia, Sickle Cell / Q000150:complications / Q000453:epidemiology; D002050:Burkina Faso / Q000453:epidemiology; D005260:Female; D005271:Femur Head Necrosis / Q000150:complications / Q000453:epidemiology; D006617:Hip Dislocation / Q000150:complications / Q000453:epidemiology; D025981:Hip Injuries / Q000150:complications / Q000453:epidemiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000453:epidemiology* / Q000209:etiology*; D012189:Retrospective Studies; D012307:Risk Factors; D017678:Sex Distribution
keywords: Burkina Faso; West-Africa; osteoarthritis of the hip; risk factors