Are you talking about Liaocheng Branch of Beijing Yang Student Institute of Traditional Chinese Medicine Osteopathy? Yang's orthopedic clinic? Your mother's illness is a typical compulsive posture, because the stiffness and inflammation of the muscle or joint fascia layer lead to uneven stress on all joints of the body, resulting in tension and pressure. You can go to Liaocheng to see this. I didn't know until I listened to Yang Jintao, a lecturer of Yang's orthopedics. I am also studying this piece recently, hoping to help you.