Patients with severe spinal lateral deformity will consider for surgical intervention due to
cardiopulmonary and cosmetic compromise. However, the current operation making use of
conventional metals can only achieve 60-70% correction due to the spinal viscoelastic
properties. Hence, spinal implants making use of the shape memory effect of nickel titanium shape
memory alloy have been developed to overcome these problems. Nevertheless, the surgical outcome
did not significantly differ with the conventional implants. The invention new spinal system is still
needed in order to achieve better spinal deformity correction.
