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A comparison of acute and chronic anterior cruciate ligament reconstruction using LARS artificial ligaments: a randomized prospective study with a 5-year follow-up

  • Arthroscopy and Sports Medicine
  • Published:
Archives of Orthopaedic and Trauma Surgery Aims and scope Submit manuscript

Abstract

Purpose

This prospective randomized study compared acute and chronic anterior cruciate ligament (ACL) reconstruction using ligament advanced reinforcement system (LARS) artificial ligament in young active adults with a 5-year follow-up.

Methods

Fifty-five patients were enrolled in this study and divided into two groups based on the elapsed time between the injury and reconstruction: the acute group (3–7 weeks) and the chronic group (6–11 months). The clinical outcomes were evaluated using the Lysholm knee scoring scale, the Tegner activity rating, a KT-1000 Arthrometer, and the International Knee Documentation Committee (IKDC) scoring system. Isokinetic strength of the quadriceps and hamstring was assessed using the Biodex System 3 isokinetic dynamometer.

Results

Anterior laxity was decreased and quadriceps/hamstring muscle strength was increased in the acute group compared to the chronic group (p > 0.05). There were no statistically significant differences in Lysholm scores, Tegner activity scores, and the IKDC evaluation form between the two groups.

Conclusions

These results suggest that earlier ACL reconstruction using a LARS artificial ligament may provide an advantage in the treatment and rehabilitation of ACL rupture.

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Conflict of interest

No funds were received in support of this study.

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Authors and Affiliations

  1. Orthopedic Department, The Affiliated Taizhou People’s Hospital of Nantong University, Taizhou, 225300, Jiangsu, People’s Republic of China

    Jia Chen, Aiqun Gu, Haitao Jiang & Wenjie Zhang

  2. Department of Radiology, Huashan Hospital Affiliated to Fudan University, Shanghai, 200040, People’s Republic of China

    Xiangrong Yu

Authors
  1. Jia Chen
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  2. Aiqun Gu
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  3. Haitao Jiang
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  4. Wenjie Zhang
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  5. Xiangrong Yu
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Correspondence to Jia Chen.

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Chen, J., Gu, A., Jiang, H. et al. A comparison of acute and chronic anterior cruciate ligament reconstruction using LARS artificial ligaments: a randomized prospective study with a 5-year follow-up. Arch Orthop Trauma Surg 135, 95–102 (2015). https://doi.org/10.1007/s00402-014-2108-3

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  • DOI: https://doi.org/10.1007/s00402-014-2108-3

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