hi
sorry for abbraviations, OC/C1 means occipitoatlantal joint.
my example was not reffered to this case, only giving example of complexity of our body ( means OC/C1 means occipitoatlantal joint can couse knee pain).

from another hand, in theory if certain area is hypomobile another as a compensation will be hypermobile, if thoracic 11/12 is locked below/above segments can be hypermobile which after time can couse a problem. and our primar goal will be improving mobility in thoracic 11/12. i do not defend the physio, i want to explain, it isnt so obvious and our job is very often an art than engineering.

thanks
Yaro