I have been in the Military for 34 years, currently on AGR. I have 14 years active duty, the remaining is M-Day. I do have a 20 year letter for an M Day retirement, unfortunately my deployments do not factor into retirement age because they were prior to 2008 (Authorization Act). I am 57 and trying to make it to retirement but do not know if it is possible. My current AGR tour ends May 21, 2019 additionally I will have to submit a packet to the retention board next month. I could end up either non selected to retain or ETS 19 May 2019. I had total knee replacement 2016 and total hip replacement July 2018. I have had DDD for years that has progressed to Modic 2, chronic pain daily. My spine is simply ate up with arthritis. My concern is if they do not retain me I will not have adequate time to have a MEB initiated. I am under the impression the MEB cannot consider the hip replacement because the healing process is 1 year and possible ETS/Board results are prior to the one year.