This forum is an un-mediated, patient-to-patient forum for questions and support regarding
cerebral palsy issues such as: Books and Journals, Daily Living and Social issues, Diagnosis, Education and Schools, Equipment (orthotics, walkers, wheelchairs, cars, etc.), Family and Patient Support Groups, Financial Help and Support, Insurance Issues, Legal Rights and Issues, Research, Long-Term Care, Treatments (Biofeedback, Hyperbaric Oxygen Therapy, Conductive Education, Suit Therapy, Botox, Baclofen, PERC, etc.)
I think you need to consult with rehabilitation medicine specialists. They can assess first the patient and recommend the best equipment to support her problem. They can give to referrals on where to get that equipment and have it custom made for an exact fit.
Good luck.