Scoliosis Surgery

Adult scoliosis is more than a sideways curve. Degeneration can also cause the spine to rotate, collapse, shift to one side, or lean forward. Some adults have a curve that began earlier in life; others develop scoliosis as discs and joints wear unevenly. Many never need surgery. Treatment focuses on the symptoms and functional effects of the deformity—not on an X-ray number in isolation.

Surgery becomes a consideration when a clearly defined structural problem causes substantial pain, nerve symptoms, loss of balance, or progressive disability and reasonable nonoperative care has not provided an acceptable level of function. Because adult deformity operations range from focused decompression to long reconstruction, a careful assessment is essential before discussing a specific procedure.

Problems scoliosis surgery may address

The reason for surgery should be concrete. Possible goals include:

• relieving pressure on nerves that causes leg pain, numbness, or weakness;
• stabilizing an unstable or progressively collapsing segment;
• improving severe forward or sideways imbalance that limits standing and walking;
• treating painful nonunion, implant failure, or adjacent-level breakdown after prior fusion; and
• preventing further neurologic decline when compression or deformity is progressing.

Back pain by itself is not proof that a large reconstruction will help. Pain may come from discs, joints, muscles, hips, the sacroiliac joint, stenosis, or other conditions. The surgical target must match the patient’s dominant symptoms and priorities.

A deformity evaluation looks at the whole patient

Standing full-length X-rays show the curve under normal weight bearing and allow assessment of coronal and sagittal balance. Bending or flexion-extension views may help determine which parts of the curve are flexible and whether abnormal motion is present. MRI evaluates the spinal cord, nerves, discs, and areas of stenosis. CT can clarify bone anatomy, prior fusion healing, and implant position.

The physical examination evaluates strength, sensation, reflexes, gait, balance, hip motion, and areas of tenderness. The history should identify how long the patient can stand or walk, whether posture worsens through the day, which activities are no longer possible, and whether leg symptoms or mechanical back pain dominate.

Medical and biological readiness is equally important. Bone density, frailty, nutrition, nicotine exposure, diabetes control, heart and lung health, medication use, and available support at home can influence both the operative plan and whether surgery is reasonable. Optimizing these factors may be part of treatment before any operation is scheduled.

Nonoperative treatment remains important

Many patients can manage adult scoliosis without surgery. A program may include core and hip strengthening, aerobic conditioning, balance work, pacing strategies, medication selected for the patient’s health profile, and targeted injections when a specific joint or nerve is suspected. Temporary bracing may help selected patients with comfort or support, although it does not usually reverse a fixed adult curve.

Treating osteoporosis and reducing fall risk are important whether surgery is planned or not. Weight management, sleep, mood, and other sources of pain can also affect function. A period of structured nonoperative care helps clarify which limitations are modifiable and which continue despite appropriate treatment.

Surgical options are not one-size-fits-all

The smallest operation that safely addresses the main problem is considered first. In a stable curve with focal nerve compression, a limited decompression may be appropriate, although removing supporting bone can sometimes worsen instability. A short fusion may treat a localized unstable segment. More extensive deformity may require fusion across multiple levels, implants to hold alignment, bone graft to promote healing, and carefully planned correction of the curve.

Some reconstructions use anterior, lateral, posterior, or combined approaches. Osteotomies—controlled cuts through bone—may be needed when a rigid spine cannot be balanced by positioning and implants alone. Navigation and neuromonitoring may support planning and safety, but they do not eliminate risk.

The desired correction is individualized. Overcorrecting an older or medically complex patient can be as problematic as leaving disabling imbalance untreated. The plan accounts for age, pelvic and spinal shape, curve flexibility, bone quality, prior operations, and the amount of change needed to meet functional goals.

Benefits, limits, and risks

When symptoms and deformity are well matched, surgery may improve nerve compression, standing balance, and the ability to perform daily activities. The amount of pain or functional improvement cannot be predicted with certainty. Longstanding nerve injury may recover incompletely, and a structurally successful reconstruction does not remove every age-related change in the spine.

Adult deformity surgery can be a major physiologic event. Risks include bleeding and transfusion, infection, anesthesia or cardiopulmonary complications, blood clots, nerve or spinal-cord injury, dural tear and spinal-fluid leak, bowel or vascular injury depending on the approach, implant failure, nonunion, junctional breakdown above or below the fusion, loss of correction, persistent pain, and additional surgery. Risk rises or falls with the scope of the operation and the patient’s health; it should be discussed using the actual proposed plan rather than general labels.

Planning for recovery

Recovery begins before surgery with medical optimization, conditioning, medication planning, home support, and a clear understanding of postoperative restrictions. Hospital length of stay and the need for inpatient rehabilitation, home services, a walker, or a brace vary. Early priorities are neurologic safety, pain control, wound care, breathing, blood-clot prevention, nutrition, and progressive mobility.

After discharge, activity is advanced in stages. Physical therapy may initially emphasize safe transfers and walking, then later strength, endurance, and movement patterns. Return to driving, desk work, lifting, caregiving, and recreation depends on pain control, medication use, healing, and the physical demands of the task. Fusion and overall functional recovery are followed over time with examination and imaging.

When symptoms require urgent attention

New or progressive weakness, worsening balance with falls, loss of bladder or bowel control, numbness around the groin, fever with severe back pain, or rapidly escalating pain requires prompt medical evaluation. After surgery, wound drainage, spreading redness, chest pain, shortness of breath, or a painful swollen leg also needs urgent attention. Severe or quickly progressing neurologic symptoms should be evaluated in the nearest emergency department.