title: A prospective study to assess the outcomes of revision anterior cruciate ligament reconstruction.
abstract: OBJECTIVE
  Continuously increasing numbers of primary anterior cruciate ligament (ACL) reconstructions invites a parallel increase in graft failures and need for revision ACL reconstruction surgery. High failure rates has previously stigmatised the revision surgery. We performed this study using multiple outcome measures together with clinical examination to offer a full assessment of the outcomes of this procedure.
  
  
  METHODS
  Twenty patients, with mean age of 29.4 years (17-50 years), were included in this study prior to their revision ACL reconstruction surgery. All patients were followed prospectively collecting the Knee injury and Osteoarthritis Outcome (KOOS), International Knee Documentation Committee (IKDC) and Tegner-Lysholm scores pre- and post-operatively together with clinical assessment of the antero-posterior knee laxity.
  
  
  RESULTS
  After a mean follow up interval of 30 months (16-60 months) significant post-operative improvement of IKDC, Tegner-Lysholm scores and knee antero-posterior laxity together with the Symptoms, Activities of Daily Living (ADL) and Quality of Life (QOL) components of the KOOS score was noticed (P < 0.05). However, there was no similar improvement in pain and sports components of the KOOS score (P > 0.05). There was no difference in the outcomes of different graft types.
  
  
  CONCLUSIONS
  Good outcomes of revision ACL reconstruction surgery are achievable. The use of different graft types did not affect the outcome of the procedure. Most of the patients opted to less aggressive sports participation after the revision procedure.
authors.affiliation: Department of Trauma and Orthopaedics, St George's Healthcare NHS Trust, Blackshaw Road, Tooting, London, UK, SW17 0QT, samersamirsayed@yahoo.com.
authors.forename: Samer Samir Sayed
authors.initials: SS
authors.lastname: Mahmoud
authors.forename: Saurabh
authors.initials: S
authors.lastname: Odak
authors.forename: Stephen
authors.initials: S
authors.lastname: Coogan
authors.forename: Michael J
authors.initials: MJ
authors.lastname: McNicholas
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries; D059549:Anterior Cruciate Ligament Reconstruction / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000601:surgery*; D007718:Knee Injuries / Q000601:surgery*; D007719:Knee Joint / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011788:Quality of Life; D012008:Recurrence; D012086:Reoperation; D012307:Risk Factors; D016896:Treatment Outcome; D055815:Young Adult