Total knee arthroplasty represents a major advance in the treatment of
degenerative joint disease. It provides excellent restoration of joint function and pain
relief. The primary indication for total knee arthroplasty is to relieve pain caused by
severe arthritis, with or without significant deformity. This study is to assess
psychological impact pre and post arthroplasty. (Copied from article).
An investigation of bending loss characteristics of a Polymer Optical Fiber is presented experimentally. Loss of optical power in an optical fiber due to bending has been investigated for a wavelength of 650 nm. Variations of bending loss with different lengths have been measured, with a number of radii of curvature. Bending Loss equations for short length POF is proposed, which shows the dependence of bending loss on the curvature radii. The equations can be an initial reference or aid in predicting the loss contributes by the polymer optical fiber.