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.
The sinuses are a connected system of hollow cavities in the skull. The largest sinus cavities are about an inch across. Others are much smaller. Your cheekbones hold your maxillary sinuses (the largest).