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고관절순 손상에 따른 고관절 연골의 압축변형패턴의 변화연구
김윤진(Yoonjin Kim),박세희(Sehee Park),송용남(Yongnam Song) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
Articular arthritis has been known to be related with mechanical factors. In general, Shear force accelerates the degeneration of articular cartilage. Among many factors causing shear force in hip joint, acetabular labrum damage may be one of the key factors because acetabular labrum plays an important role for sealing synovial fluid. However, in our knowledge, there has been no study how the labrum effects on the flow of synovial fluid. The aim of this study is to compare the difference of the compression pattern changes in hip joint cartilage between the pig’s hip joint with labrum and without labrum. We took CT images every 3 minutes 8 times under cyclic loading of 2BW (Body Weight) and released the hip joint in the PBS (Ph 7.4) after full labrum tear. After 2 hours releasing the cartilage, we took CT images again in the same way. The images were constructed to 3D images and the volumes of joint space were measured by following the time sequence and we compared the results. In this study, we could see the pattern difference between intact labrum (volume reduction rate: 0.007) and labrum damage (volume reduction rate: 0.008).