Chinese Journal of Tissue Engineering Research ›› 2013, Vol. 17 ›› Issue (2): 280-285.doi: 10.3969/j.issn.2095-4344.2013.02.017

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Effect of posterior cruciate ligament rupture on histological features of medial collateral ligament

Yu Fang, Li Kang-hua, Zhang Can, Li Yu-sheng, Gao Shu-guang, Lu Bang-bao   

  1. Institute of Orthopedics, Xiangya Hospital of Central South University, Department of Orthopedics, Xiangya Hospital of Central South University, Changsha  410008, Hunan Province, China
  • Received:2012-05-16 Revised:2012-07-23 Online:2013-01-08 Published:2013-01-08
  • Contact: Li Kang-hua, Professor, Institute of Orthopedics, Xiangya Hospital of Central South University, Department of Orthopedics, Xiangya Hospital of Central South University, Changsha 410008, Hunan Province, China Lkh8738@gmail.com
  • About author:Yu Fang☆, Doctor, Institute of Orthopedics, Xiangya Hospital of Central South University, Department of Orthopedics, Xiangya Hospital of Central South University, Changsha 410008, Hunan Province, China yukang7171930@yahoo.com.cn

Abstract:

BACKGROUND: By comparing the relative quantity of typeⅠ and III collagens and type Ⅰ/Ⅲ collagen ratio, we can determine the ligament histology performance to some extent.
OBJECTIVE: To explore the histological effect of posterior cruciate ligament injury on the medial collateral ligament under a lower physiological load in rabbits.
METHODS: Bilateral knees of 24 male rabbits were enrolled for a self-control trial. Posterior cruciate ligaments at the experimental side were transected, and those in the control side were only exposed but not transected. At the 8th, 16th, 24th and 40th weeks after modeling, six rabbits were executed randomly, and then the histological alteration of the medial collateral ligament was observed through hematoxylin-eosin staining and picrosirius-polarization staining.
RESULTS AND CONCLUSION: (1)Hematoxylin-eosin staining: At the 8th, 16thand 24th weeks, there was no obvious difference in the collagen distribution and arrangement of the medial collateral ligament between experimental group and control group; at the 40th week, the collagen was thinner in the experimental group. (2)Picrosirius-polarization staining: At the 8th, 16th and 24th weeks, the total number of type Ⅰ and Ⅲ collagens in the medial collateral ligament of the experiment group was more than that in the control group (P < 0.05); however, at the 40th week, the total number of type I and III collagens in the medial collateral ligament of the experimental group was much fewer than that of the control group (P < 0.05); at the 8th week, ratio of type Ⅰ/Ⅲ collagen in the medial collateral ligament of the experimental group did not differ from that in the control group (P > 0.05); however, at the 16th, 24th and 40th weeks, the ratio of type Ⅰ/Ⅲ collagen in the experimental group was much fewer than that in the control group (P < 0.05). In short-term, posterior cruciate ligament injury has no significant effect on histological properties of the rabbit medial collateral ligament. However, the histological properties can decrease significantly with time.

Key words: tissue construction, tissue construction and biomechanics, knee, posterior cruciate ligament, fracture, medial collateral ligament, collagen fibers, histological features, ligament repair, tissue construction photographs- containing paper

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