Total disability in the legal sense does not require that the insured be incapable of all work activity, only that the medical condition is such that ordinary and reasonable prudence would dictate that that person is not fit enough to carry out the main duties of a job of occupation.
Explanation:Sinus tract, an abnormal channel leading from within bones or other structures to the skin surface; sometimes this type of passageway is termed a fistula. Sinus tracts may form after an infection or as a means of decompression of a synovial joint in rheumatoid arthritis or classic fistulous rheumatism.
Clinical Relevance: Sinusitis. As the paranasal sinuses are continuous with the nasal cavity, an upper respiratory tract infection can spread to the sinuses. Infection of the sinuses causes inflammation (particularly pain and swelling) of the mucosa, and is known as sinusitis. If more than one sinus is affected, it is called pansinusitis.