The reason why there is a groove in the back after one year of thoracic spine surgery may be a normal physiological phenomenon, or it may be caused by local scar contraction.
Because the middle of the spine belongs to the spinal ligament, it is not actually a groove, but a relative depression in the middle due to the high convexity of the erector spinae muscles on both sides of the spine, which is manifested as a groove.
It may also be caused by local scar contraction, because the local soft tissues need to be cut during the surgery, which may cause local soft tissue scar contraction after the surgery, and the phenomenon of concave groove will appear as a result of collapse.
Thoracic spine surgery one year after a groove in the back if there is pain and other symptoms, should promptly go to the regular hospital for medical treatment, the doctor according to the specific symptoms, signs and auxiliary examination to come up with the correct cause.