1995 Fiscal Year Final Research Report Summary
Effect of Local Administration of Extracellular Molecules on Ligament Healing
| Project/Area Number |
05671202
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Orthopaedic surgery
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| Research Institution | The University of Tokyo |
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Principal Investigator |
NAKAMURA Kozo The Univ.of Tokyo Associate Professor, 医学部・附属病院, 助教授 (60126133)
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| Co-Investigator(Kenkyū-buntansha) |
KATSUMOTO Hiromu The Univ.of Tokyo Associate, 医学部・附属病院, 助手 (80233766)
FUKUI Naoshi The Univ.of Tokyo Associate, 医学部・附属病院, 助手 (10251258)
KUROKAWA Takahide The Univ.of Tokyo Professor, 医学部・附属病院, 教授 (90010298)
ODA Hiromi The Univ.of Tokyo Lecturer, 医学部・附属病院, 講師 (60101698)
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| Project Period (FY) |
1993 – 1995
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| Keywords | ligament / healing / extra cellular matrix / hyaruronate / intra-articular administration / anterior cruciate ligament / rabbit |
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| Research Abstract |
Ligament injury is a common injury, especially among young active individuals. The treatment for the injured ligament is immobilization for a prolonged period, which often yields muscle atrophy and contractures of the joints.In addition, cruciate ligaments in the knee joints are well known to heal very poorly. therefore, promotion or enhancement of ligament healing is one of the fundamental problems in the field of orthopaedics. In this study, the effect of extracellular matrix on ligament healing was evaluated, intending to facilitate the repair processes.
The experiment was performed in two stages. Firstly, appropriate ligament injury model with adequate reproducibility was developed ; we concluded partial resection model of anterior cruciate ligament in rabbit knee joint is suitable for these conditions. Subsequently, several extracellular matrix was tried to enhance ligament healing using this model.
As the results of this study, intra-articular injection of hyaruronate could facilitate the healing process of the ligament, when administrated repeatedly with an interval of one week. Considering that intra-articular administration of hyaruronate is routinely performed in clinics, the results of this study has a good promise in clinical applications.
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