Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (53): 10060-10063.doi: 10.3969/j.issn.1673-8225.2011.53.044

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Repair of combined anterior cruciate ligament and posterolateral corner injury by tendon autograft

Zhang Jian-lin, Luan Yan-jun, Guo Long, Xing Jun, Bai Li-bang, Jiang Peng-fei   

  1. First Department of Orthopedics, Yanan University Affiliated Hospital, Yan’an 716000, Shaanxi Province, China
  • Received:2011-09-21 Revised:2011-10-20 Online:2011-12-31 Published:2011-12-31
  • About author:Zhang Jian-lin, Associate chief physician, First Department of Orthopedics, Yanan University Affiliated Hospital, Yan’an 716000, Shaanxi Province, China zjl1939@163.com
  • Supported by:

    the Science and Technology Research Development Program of Yan’an

Abstract:

BACKGROUND: Cruciate ligament and posterolateral corner of the knee can both be reconstructed by semitendinosus and gracilis tendon autograft.
OBJECTIVE: To analyse the repairing effects of semitendinosus and gracilis tendon autograft on knee joint combined anterior cruciate ligament and posterolateral corner injury.
METHODS: A total of 20 patients of knee joint combined anterior cruciate ligament and posterolateral corner injury were randomly assigned into experiment group and control group. With the aid of arthroscope, one-stage reconstruction of anterior cruciate ligament was performed by semitendinosus autograft and gracilis tendon autograft, and the reconstructed posterolateral corner was strengthened in the experiment group. Patients in control group only underwent one-stage reconstruction of anterior cruciate ligament.
RESULTS AND CONCLUSION: Compared with preoperation, there was a significant improvement in Lysom scores of the two groups (P < 0.01). Experimental patients did not show over-extending knee instability related to unstable posterolateral structures of the knee joint when standing, walking, going upstairs and downstairs. There was no inward swing of the knee joint during walking. The ranges of motion were from 100° to 135° of flexion and from 0° to 10° of extension. There were 3 cases in the control group showed no over-extending knee instability related to unstable posterolateral structures of the knee joint when standing, walking, going upstairs and downstairs, and 4 cases showed slight inward swing of the knee joint during walking. The ranges of motion were from 104° to 130° of flexion and from 0° to 10° of extension. These findings demonstrate that the posterolateral, front and rear stability of the knee joint is recovered after the reconstruction of nterior cruciate ligament and posterolateral corner by tendon autograft. The treatment effect is better than the reconstruction of anterior cruciate ligament alone.

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