I would believe this means the deformity must be caused by what is left and what holds those vertebrae together and upright—soft tissue, such as muscle, tendons and ligaments.
Ndikholelwa ekubeni ukugqwetheka kwenziwa yiloo nto eseleyo nento edibanisa amathambo omqolo ukuze angqale —inyama ethambileyo, efana nezihlunu, nemisipha.