Psoriasis: The most common skin disorder that also affects the joints, including the knees, is psoriasis. Although certainly not all patients with psoriasis will develop joint problems, psoriatic arthritis may cause knee pain and swelling. ...Read more.
Definition of accident. 1  1a : an unforeseen and unplanned event or circumstance Their meeting was an accident.b : lack of intention or necessity : chance They met by accident rather than by design.
Any injury, disease, death, or medical condition that occurs under strange or doubtful circumstances or which may be due to misconduct or willful negligence and all motor vehicle accidents must be a formal LOD. See Section 4-14 pg. 16 and appendix B pgs.