1. A Prospective Randomized Study Comparing Double- and Single-Bundle Techniques for Anterior Cruciate Ligament Reconstruction.
- Author
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Ahldén, Mattias, Sernert, Ninni, Karlsson, Jón, and Kartus, Jüri
- Subjects
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EXERCISE tests , *ANTERIOR cruciate ligament , *LIGAMENT surgery , *CHI-squared test , *CLINICAL trials , *RANGE of motion of joints , *LONGITUDINAL method , *MOTOR ability , *HEALTH outcome assessment , *PHYSICAL diagnosis , *STATISTICAL sampling , *STATISTICS , *U-statistics , *STATISTICAL power analysis , *DATA analysis , *BODY movement , *RANDOMIZED controlled trials , *TREATMENT effectiveness , *BLIND experiment , *FUNCTIONAL assessment , *DESCRIPTIVE statistics - Abstract
Background:The aim of the study was to compare the results after arthroscopic anterior cruciate ligament (ACL) reconstruction using either the double-bundle or single-bundle technique with hamstring tendon autografts in an unselected group of patients.Hypothesis:Double-bundle ACL reconstruction will render a better outcome on the pivot-shift test.Study Design:Randomized controlled trial; Level of evidence, 1.Methods:A randomized series of 103 patients (33 women, 70 men; median age, 27 years; range, 18-52 years) with a unilateral ACL rupture underwent anatomic ACL reconstruction. The double-bundle technique was used in 53 patients, and the single-bundle technique was used in 50 patients. The ACL footprint was visualized, and the femoral tunnel was drilled through the anteromedial portal; interference screw fixation was used at both ends. The patients were examined preoperatively and at a median of 26 months (range, 22-42 months) after the reconstruction by a blinded observer. The primary variable was the pivot-shift test.Results:At 2-year follow-up, 98 patients (93%) were examined. Clinical assessments at follow-up revealed no significant differences between the double-bundle and single-bundle groups in terms of the pivot-shift test, KT-1000 arthrometer laxity measurements, manual Lachman test, range of motion, Lysholm knee scoring scale, Tegner activity scale, Knee Injury and Osteoarthritis and Outcome Score (KOOS), 1-legged hop test, and square hop test. A significant improvement was seen in both groups compared with the preoperative values in terms of most clinical assessments.Conclusion:In this prospective randomized study, the primary variable, the pivot-shift test, and other subjective and objective outcome variables revealed no significant differences between the double-bundle and single-bundle techniques at 2 years after ACL reconstruction in an unselected group of patients. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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