How long has she been with this Wikipedia reference-linkscoliosis. Have you ruled any pathology behind this? Does her scoliosis disappear on flexion or elongation of the spine? This would require an extensive work up in her bony alignment & musculoskeletal system. Iam presently working on a patient & there's enough +ve results seen. The patient is 72 years. Red flags has been ruled out before taking up the patient. You will have to first assess to see if anything can be done at our level. Then proceed to assess which is the primary curve & which one is secondary.