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Int Orthop. 2010 Feb;34(1):45-9. doi: 10.1007/s00264-009-0768-3. Epub 2009 Apr 25.

Four-strand hamstring tendon autograft versus LARS artificial ligament for anterior cruciate ligament reconstruction.

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Department of Orthopaedic Surgery, Arthritis Institute, Shanghai Sixth People's Hospital, Medical College of Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, CT 200233, People's Republic of China.


This retrospective study compared the results after anterior cruciate ligament (ACL) reconstruction using a four-strand hamstring tendon graft (4SHG) versus Ligament Advanced Reinforcement System (LARS) artificial ligament in 60 patients between January 2003 and July 2004 with a minimum four-year follow-up. The KT-1000 examination, the International Knee Documentation Committee (IKDC) scoring systems and Lysholm knee scoring scale were used to evaluate the clinical results. The mean side-to-side difference was 2.4 +/- 0.5 mm and 1.2 +/- 0.3 mm in the 4SHG group and LARS group, respectively (P = 0.013). Although other results of ACL reconstruction, measured by IKDC evaluation, Lysholm scores and Tegner scores, showed using a LARS graft clinically tended to be superior to using a 4SHG, there were no significant differences calculated. Our results suggest that four years after ACL reconstruction using a LARS ligament or 4SHG dramatically improves the function outcome, while the patients in the LARS group displayed a higher knee stability than those in the 4SHG group.

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