Create a 40 slide , 8 minute presentation for orthopedic joint surgeons to explain them about the importance of spino- pelvic parameters in total hip replacement. we have to explain what are the normal parameters in sitting and standing of the acetabulum and how hey change in sitting. Also how it change sin a stiff spine and in an operated spine. We need to also give the classifications and tell the practical tips on how to change the cup position in stiff spine , in hypermobile spine and in operated spine. We need to tell what is stuck sitting and stuck sitting. It will be also wonderful if we have some take home message in last two slides.