title: [Single bundle anterior cruciate ligament reconstruction using quadriceps tendon autografts].
abstract: OBJECTIVE
  The purpose of this study was to evaluate postoperative outcome and functional scores after single bundle anterior cruciate ligament (ACL) reconstruction with the use of quadriceps tendon autografts after a 16 (12-24) month follow-up.
  
  
  METHODS
  54 patients (9 women, 45 men, body mass index [BMI] 25.3 [18.1-36.3 kg/m (2)]) were included in this prospective series, treated between January 2004 and December 2005. Ligament stability was assessed with the Lachmann and pivot-shift tests and a KT 1000 arthrometer. Tegner index, Lysholm-Gilquist score and the International Knee Documentation Committee (IKDC) were employed to evaluate the functional outcomes. In addition, the single leg hop test was performed.
  
  
  RESULTS
  Ligament arthrometry using the KT 1000 arthrometer demonstrated a mean side-to-side difference of 1.53 mm (0.2-4.1 mm). Regarding the Lachmann test, 17 patients (32%) showed 1+ laxity and no patient had an abnormal pivot-shift. The mean Tegner activity score was 4.22 (1-10), the mean Lysholm score was 80.8 (20-100) and the mean IKDC score 68.1 (29-87). Results of the single leg hop test revealed a mean decline of the treated leg to 87.7% (70-100%) of the contralateral side. The mean extension was reduced by 1.7 degrees (0-10 degrees) on the treated knee and the flexion by 2.1 degrees (0-10 degrees), compared to the contralateral knee.
  
  
  CONCLUSIONS
  Single bundle anterior cruciate ligament reconstruction using quadriceps tendon demonstrates highly satisfactory results. Due to a moderate donor site morbidity and preservation of the medial stabilizing structures of the knee a wider use in primary cruciate ligament reconstruction may arise in the future.
authors.affiliation: Abteilung für Unfallchirurgie, Orthopädie und Sporttraumatologie, BG-Unfallkrankenhaus Hamburg. justus_gille@usa.net
authors.forename: J
authors.initials: J
authors.lastname: Gille
authors.forename: O J
authors.initials: OJ
authors.lastname: Bisping
authors.forename: C
authors.initials: C
authors.lastname: Queitsch
authors.forename: C
authors.initials: C
authors.lastname: Voigt
authors.forename: C
authors.initials: C
authors.lastname: Jürgens
authors.forename: A P
authors.initials: AP
authors.lastname: Schulz
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries; D053587:Arthrometry, Articular; D001182:Arthroscopy / Q000379:methods*; D001858:Bone Nails; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis; D007718:Knee Injuries / Q000601:surgery*; D008297:Male; D008592:Menisci, Tibial / Q000601:surgery; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis; D011446:Prospective Studies; D016059:Range of Motion, Articular / Q000502:physiology; D012421:Rupture; D013710:Tendons / Q000637:transplantation*; D000070600:Tibial Meniscus Injuries; D020858:Tissue and Organ Harvesting / Q000379:methods; D055815:Young Adult