[Single bundle anterior cruciate ligament reconstruction using quadriceps tendon autografts]

J Gille, O J Bisping, C Queitsch, C Voigt, C Jürgens, A P Schulz
Zeitschrift Für Orthopädie und Unfallchirurgie 2009, 147 (5): 570-6

AIM: 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.

METHOD: 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.

CONCLUSION: 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.

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