Having just doing another revision of my scoliosis surgery for a similar situation, I am not sure if anything other than surgery can help with issues like that. I was collapsing like that and I couldn't live like that.
T10-pelvis fusion 12/08
C5,6,7 fusion 9/10
T2--T10 fusion 2/11
C 4-5 fusion 11/14
Right scapulectomy 6/15
Right pectoralis major muscle transfer to scapula
To replace the action of Serratus Anterior muscle 3/16
Broken neck 9/28/2018
Emergency surgery posterior fusion C4- T3
Repeated 11/2018 because rods pulled apart added T2 fusion
Removal of partial right thoracic hardware 1/2020
Removal and replacement of C4-T10 hardware with C7 and T 1
Osteotomy