Severe scoliosis cases can be difficult to treat. It can be further complicated by additional conditions that scoliosis causes, such as pulmonary, digestive, or cardiovascular disorders. These conditions can become permanent. The Social Security Administration’s definition of a permanent disability is a disability that is expected to last or has already lasted at least 12 months. You may be eligible for disability benefits if your severe scoliosis and the condition it causes have lasted or will last at least 12 months.