Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (31): 5747-5750.doi: 10.3969/j.issn.1673-8225.2011.31.011

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Endoscopic posterior cruciate ligament reconstruction using achilles tendon allografts: single-bundle versus double-bundle

Zhang Qi-liang, Teng Xue-ren   

  1. Department of Orthopedics, Qingdao Municipal Hospital (Eastern Area), Qingdao   266071, Shandong Province, China
  • Received:2011-02-16 Revised:2011-04-08 Online:2011-07-30 Published:2011-07-30
  • About author:Zhang Qi-liang☆, Doctor, Attending physician, Department of Orthopedics, Qingdao Municipal Hospital (Eastern Area), Qingdao 266071, Shandong Province, China zhangqiliang2004@yahoo.com.cn
  • Supported by:

    a grant from Science and Technology Bureau of Qingdao City, No. 06-2-2-6-nsh*

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Abstract:

BACKGROUND: Endoscopic posterior cruciate ligament reconstruction using achilles tendon allografts has been primarily performed by single-bundle and double-bundle types.
OBJECTIVE: To compare the clinical outcome of single-bundle and double-bundle endoscopic posterior cruciate ligament reconstruction using achilles tendon allograft.
METHODS: A total of 70 patients with single posterior cruciate ligament injury who received treatment at the Department of Orthopedics, Qingdao Municipal Hospital between January 2006 and January 2009 were included in this study. All patients were randomly divided into two groups: single-bundle group and double-bundle group. The single-bundle group had single-bundle reconstruction using achilles tendon allograft, and the double-bundle group had double-bundle reconstruction.
RESULTS AND CONCLUSION: After surgery, 52 patients were successfully healed and followed up. The surgery time and the number of patients who need joint puncture were greater in the double-bundle group than in the single-bundle group (P < 0.05). At 18 months after surgery, the stability and range of motion of the knee joint, Lysholm and IKDC scores were improved in each group compared with prior to surgery (P < 0.05). The tibial backward distance tested by KNEELAX3 when the knee joint flexed at 30° and 90° was significantly improved compared with prior to surgery (P < 0.05). There was no significant difference in the range of motion of the knee joint, Lysholm and IKDC scores, and the tibial backward distance tested by KNEELAX3 when the knee joint flexed at 30° and 90° between the single-bundle and double-bundle groups (P > 0.05). Compared with single-bundle reconstruction, double-bundle reconstruction resulted in poor improvement in early clinical curative effects and greater surgical trauma, required long surgery time, and lead to swelling of the knee joint. Therefore, double-bundle reconstruction should not be the preferred protocol for posterior cruciate ligament reconstruction and its long-term effects need to be further investigated.

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