title: [Relationship between angular deformity and primary osteoarthritis of the knee. Review article].
abstract: BACKGROUND
  Osteoarthritis of the knee is a common disease and angular deformities are usually associated to this degenerative affection. Secondary causes of angular deformities are well known in the scientific literature, but there are not many articles about the relationship between angular deformities and primary osteoarthritis.
  
  
  OBJECTIVE
  To deepen in the relationship between angular deformities and primary osteoarthritis of the knee.
  
  
  METHODS
  We conducted a literature review of a total of 300 articles in PubMed, Medline and Hinari locator information by EndNote, 52 of them were used and selected quotes to do the review, 47 of them in the last five years, including five books.
  
  
  METHODS
  A revision of important biochemical and biomechanics aspects were made in regards to the relationship between angular deformities and primary osteoarthritis of the knee. Causes of deformities according to the sagittal, coronal and rotational axis were taken into account. Factors related to deformities could be osseous or soft tissues of the knee joint.
  
  
  CONCLUSIONS
  Deformities of the knee in patients suffering from primary osteoarthritis are common and there are osseous and soft tissues causes to justified the presence of these deformities.
authors.affiliation: Hospital Universitario Manuel Ascunce Domenech, Carretera Central Oeste Km 4½. Camagüey, Cuba, CP 70700.
authors.forename: C A
authors.initials: CA
authors.lastname: Álvarez-López
authors.affiliation: Policlínico Universitario "Tula Aguilera", Calle J Esquina Carrtera Central Repto. La Rubia, Camagüey, Cuba, CP 70100.
authors.forename: Y C
authors.initials: YC
authors.lastname: García-Lorenzo
keywords: Knee; angular deformity; incidence; osteoarthritis