A permanent total disability is defined as complete disability which renders the employee permanently unable to do any kind of work for which there is reasonable stable employment market or the loss of both hands, both arms, both feet, both legs, both eyes, or any two such parts. Employees who suffer permanent and total disabilities from work-related injuries are entitled to benefits for life. Employees who received PTD benefits and then return to work or could return to work may have their benefits modified or terminated. The benefit is two-thirds (66 2/3%) of the employee's gross average weekly wage. The average is based on the employee's wages during the year before the injury or exposure, subject to certain limits.