Measurement and Adjustment of Resultant Graft Tension of ACL Reconstructed Knee : An in vitro Study

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概要

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• In this study, a device is developed for the measurement and adjustment of resultant graft tension of the anterior cruciate ligament (ACL) reconstructed knee in vitro. This device is attached to the tibial surface at the distal end of the drill hole for ACL reconstruction. It measures the graft tension via a suture coming from the graft and fixed at one end of the device positioned on the axis of the drill hole, by using strain gauges. A hollow bolt-nut pair at the end of suture fixation site provides a level adjusting mechanism for the initial tension adjustment of the graft. The calibration test showed a good linearity and sensitivity, and the effect of the device is examined through the knee extension test and the anterior-posterior (A-P) drawer test for four human cadaveric knees. The graft tension observed by the device showed the ACL / graft tension characteristics that is consistent with those in past reports by several authors, and it is confirmed that the developed device enables us to study the graft tension under the practical situation of ACL reconstruction quantitatively.

• 一般社団法人日本機械学会の論文
• 1999-09-15

著者

• MAEDA AKIRA

  Department of Computer Science, College of Science and Engineering, Ritsumeikan University

• TANAKA Masao

  Division of Hematology and Immunology, Department of Internal Medicine, Kanazawa Medical University

• Maeda Akira

  Department Of Orthopedic Surgery Osaka Kosei-nennkin Hospital

• Maeda Akira

  Department Of Artificial Environment And Systems Yokohama National University

• Shino Konsei

  Department Of Orthopedic Surgery Osaka University Medical School:currently At Division Of Physical T

• OHNISHI Kazuhiro

  Division of Mechanical Science, Department of Systems and Human Science, Graduate School of Engineer

• Ohnishi Kazuhiro

  Division Of Mechanical Science Department Of Systems And Human Science Graduate School Of Engineerin

• Tanaka Masao

  Division Of Hematology And Immunology Department Of Internal Medicine Kanazawa Medical University

• Tanaka Masao

  Division Of Mechanical Science Department Of Systems And Human Science Graduate School Of Engineerin

• Tanaka Masao

  Division of Applied Chemistry, Faculty of Technology, Kanagawa University

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