江清泉2006-07-262018-07-132006-07-262018-07-131999http://ntur.lib.ntu.edu.tw//handle/246246/26296Anterior knee pain is one of the most common problems in orthopedic outpatient service, and the degenerative osteoarthritis and the patellofemoral maltracking or the overuse syndrome (e.g. staircase-climbing, mountain-climbing, squat, etc.) are the two major causes of anterior pain of the knee. Because most of the patients with anterior knee pain live on the 3rd to 5th floor of the old deparments, we define this problem as staircase-climbing syndrome. Degenerative osteoarthritis is usually ended up with the erosion of the cartilage, but patellofemoral maltracking does not always induce the cartilage erosion. Because the clinicians can only decide the most appropriate therapy after they have thoroughly understood the causes, what we need is a diagnostic tool which can separate the staircase-climbing syndrome without cartilage erosion from the degenerative osteoarthritis. The diagnostic tools used for the detection of the knee joint disorders are either invasive in nature or unable to diagnose the cartilage erosion effectively. The knee joint could produce vibration signals during normal flexion-extension motion, and the vibration arthrometry (VAM) could diagnose the disorders of the knee joint by analyzing these vibration signals. Because VAM is a noninvasive diagnostic tool, it has great potential. From the previous studies we know that VAM can detect the integrity of the patellofemoral cartilage effectively. In this study we will apply VAM to the patients of the degenerative osteoarthritis and staircase-climbing syndrome to establish the mathematical model after adaptive segmentation, and try to find out the characteristic parameters of the vibration signals in these two diseases. We have found that the vibration signal emitted by the knee joint under rapid motion (67° / sec ) can be used to separate the normal volunteers from the patients of the degenerative osteoarthritis and staircase-climbing syndrome and the vibration signal under slow motion (2° / sec ) can be used to separate the patients of the degenerative osteoarthritis from the normal volunteers and the patients of the staircaseclimbing syndrome. Appropriate therapy can be given to the patients with correct diagnosis.application/pdf27787 bytesapplication/pdfzh-TW國立臺灣大學醫學院骨科degenerative osteoarthritis, staircase-climbing, VAM, PPCjournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/26296/1/882314B002259.pdf