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Medically reviewed by Jacob B. Archer, M.D., MBA — Board-certified neurosurgeon · Neuroscience Specialists · Oklahoma City, OK · Updated May 15, 2026 · For educational purposes only.

What Is Complex Spinal Deformity Correction?

Long segment fusion — also called deformity correction surgery — addresses abnormal spinal alignment such as scoliosis, kyphosis, or flatback deformity across 4 or more vertebral levels. The surgery involves pedicle screws, rods, and bone grafting throughout the construct. Goals are to restore spinal balance and alignment, decompress nerve roots where compressed, prevent deformity progression, and improve function and quality of life. Surgery typically lasts 4–8+ hours under general anesthesia. Intraoperative neurophysiologic monitoring (IONM) tracks spinal cord and nerve function continuously throughout.

Common Indications

Adult degenerative scoliosis causing pain, imbalance, or neurological symptoms
Kyphosis — excessive forward curvature from degeneration, injury, or prior surgery
Flatback deformity or sagittal imbalance
Failed prior lumbar surgery with adjacent segment failure or junctional kyphosis

Long segment fusion for adult spinal deformity is supported by prospective multicenter studies demonstrating significant improvement in pain, disability, and quality of life compared to non-surgical management in appropriately selected patients (Bridwell et al., Spine 2009).

Alternatives to Surgery

Surgery is one option for managing your condition. Not all alternatives are appropriate for every patient — their suitability depends on your specific diagnosis, symptoms, and prior treatment history.

Non-surgical pain management — oral medications, injections, pain management program
Bracing — for symptomatic relief and postural support (not corrective in adults)
Epidural steroid injections for component nerve pain
Less extensive decompression-only surgery — for selected patients without significant instability
Observation — accepting current alignment with close monitoring for neurological change
No surgery — with understanding that deformity may progress and symptoms may worsen

Choosing not to have surgery is always an option. Your surgeon has discussed what you can expect if you decide not to proceed, including the possibility that symptoms may persist, worsen, or in some cases improve without surgery.

What Happens During Surgery

Positioning is carefully planned. Neuromonitoring leads are placed to track spinal cord and nerve function throughout the entire procedure.
A posterior incision is made along the spine. Muscles are elevated to expose all levels to be fused.
Pedicle screws are placed at multiple vertebral levels under X-ray (fluoroscopic) guidance.
Osteotomies (controlled bone cuts) may be performed at stiff segments to allow alignment correction.
Spinal canal decompression is performed at compressed levels as needed to relieve nerve pressure.
Rods are shaped to the planned curvature and connected to the screws to achieve correction of the deformity.
Bone graft — including autologous bone harvested during surgery, allograft (cadaver bone), or biologic bone-forming agents — is placed along the entire construct to promote fusion.
The wound is closed in layers. Drains are placed and typically removed after 24–48 hours once output is low.

Risks of Surgery

About This Risk List
The risks listed below represent those most associated with this procedure. This list is not all-inclusive. All surgical procedures carry the potential for rare, unforeseen, or individualized complications that cannot be fully anticipated in advance, and not all complications both medical and surgical can be discussed as the list would be infinite. Your surgeon has discussed the risks most relevant to your specific situation.

General Surgical Risks

Infection — superficial or deep wound, epidural abscess, meningitis
Bleeding or blood transfusion
Blood clots (DVT or pulmonary embolism)
UTI — urinary tract infection
Stroke
Heart attack
Paralysis
Death
Adverse anesthesia reaction
Pneumonia
Ileus — post-operative bowel slowdown
Vascular, bladder, kidney, ureter, or bowel injury
Corneal abrasion or blindness
Ulnar nerve, median nerve, or brachial plexus injury from positioning

Procedure-Specific Risks

Nerve root and/or spinal cord injury — sensory changes, weakness, or paralysis (temporary or permanent)
Proximal junctional kyphosis or failure (10–40%)
Hardware failure — rod or screw breakage, screw loosening or malposition
Failed fusion (pseudarthrosis)
Dural tear and CSF leak
Wound breakdown or delayed healing
Loss of bowel, bladder, or sexual function
Revision surgery may be required
Bone fracture — vertebral, sacral, and/or pelvis requiring additional surgery
Wrong level
Unforeseen metal allergy
Hardware prominence or pain — may require planned or unplanned hardware removal
Epidural fibrosis (scar tissue) causing persistent symptoms
Symptoms may be unchanged, worse, new, or different after surgery
Additional surgery for any noted or unforeseen complications

Blood Loss: This surgery typically involves significant blood loss. Blood-conserving techniques including cell saver and tranexamic acid (TXA) are used routinely. Blood transfusion may be needed.

Proximal Junctional Kyphosis: A curve that develops above the fusion construct is one of the most common complications of long segment fusion, affecting up to 30–40% of patients to varying degrees. Severe cases may require revision surgery.

Outcomes & Expectations: Surgery aims to relieve nerve compression and stabilize the spine where applicable. It does not guarantee relief of all pain or symptoms. Individual outcomes vary based on diagnosis, health status, duration of symptoms, and other factors. No specific result has been promised or guaranteed.

Your Hospital Stay

Typically 2–5 nights depending on complexity, number of levels fused, and your individual recovery. ICU or step-down unit monitoring is commonly used the first night.

Timeframe	What to Expect
Day of surgery	ICU or step-down unit. Neurological checks every 1–2 hours. IV pain management. Foley catheter in place — typically removed by post-op day 1 or 2.
Days 1–2	Assisted mobilization begins with physical therapy. Drains removed when output is low.
Days 2–4	Increasing mobility. Transition to oral pain medications.
Days 4–7	Goal: safe independent ambulation. Discharge planning.
Inpatient Rehab	If unable to safely ambulate or care for yourself at discharge, a short stay in a rehabilitation facility may be needed.

Recovery at Home

Spine Precautions — First 3 Months: B No Bending | L No Lifting more than 10 lbs (first month) | T No Twisting.
It is OK for obvious reasons to carefully bend and twist to get on and off the toilet or in and out of bed. Your surgeon will adjust restrictions at each follow-up visit.

Activity Timeline

Weeks 1–4: Short, frequent walks. Rest between activity. No lifting more than 10 lbs.
Months 1–3: Gradually increase walking. Light daily activities. Return to desk work with breaks.
Months 3–6: Activity increased with imaging confirmation of fusion progress.
Months 6–12+: Return to more demanding activities based on imaging and symptom assessment.

Walking Is Your Most Important Recovery Exercise. Begin walking as soon as safely able and build distance daily. Walking promotes circulation, reduces clot risk, speeds healing, and rebuilds strength.
Days 1–7: 5–10 minute walks several times a day | Weeks 2–4: 15–30 minutes once or twice daily | After 1 month: increase duration and pace as tolerated.

Preventing Blood Clots at Home. Walk every day. Avoid sitting or lying still for long periods. Stay well hydrated (6–8 glasses daily). Go to the ER immediately if you develop calf pain, leg swelling, redness, chest pain, or shortness of breath.

Avoid NSAIDs After Fusion Surgery. Do not take ibuprofen (Advil, Motrin), naproxen (Aleve), aspirin for pain relief, or any prescription anti-inflammatory for at least 3 months after fusion. These medications interfere with bone healing and can prevent fusion. If you need pain relief beyond acetaminophen, contact our office before taking any anti-inflammatory.

Return to Work — Typical Timelines

Work Type	Typical Timeline	Examples
Sedentary / Desk Work	4–8 weeks	Office, computer, phone, remote work
Light Duty	3–4 months	Standing, walking, lifting 10–20 lbs
Moderate / Heavy Labor	6–12+ months	Construction, trades, patient care, heavy lifting

All timelines are estimates. Your surgeon will provide formal work release at follow-up based on your progress.

Wound Care

Keep the incision clean and dry for the first 48–72 hours after discharge.
You may shower after 48 hours — allow water to run gently over the area. Do not scrub.
Do not submerge in a bathtub, pool, or hot tub until cleared by your surgeon (typically 4–6 weeks).
Steri-strips should fall off on their own over 7–10 days. Do not remove them.
Dissolvable sutures do not need removal. External sutures or staples are removed at your 2-week visit.
Monitor for signs of infection and call our office promptly if you have concerns.

Medications at Discharge

Opioid pain medication — Use only as needed for pain not controlled by other measures. Do not drive, operate machinery, or consume alcohol while taking opioids. Short-term use only (1–2 weeks typical).
Muscle relaxer — Helps reduce painful muscle spasm. May cause drowsiness.
Stool softener (docusate) — Take while using opioids to prevent constipation. Drink 6–8 glasses of water daily.
Acetaminophen (Tylenol) — Do not exceed 3,000 mg/day. Do not take additional Tylenol-containing products concurrently.

Opioids are for short-term use only — typically 1–2 weeks. Taper as pain allows. Do not request early refills. Dispose of unused medication safely at a pharmacy take-back program.

Follow-Up Schedule

Visit	What to Expect
2 Weeks	Wound check, suture or staple removal, early recovery questions
1 Month	Clinical assessment, neurological check, activity advancement, driving clearance
3 Months	Clinical assessment, fusion progress review, return-to-work discussion, address ongoing symptoms
9–12 Months	Late follow-up: confirm final outcome; imaging ordered only if symptoms or concerns arise

Warning Signs

For urgent concerns outside of office hours, call (405) 748-3300 — our answering service is available 24 hours a day, 7 days a week.

Warning Sign	What To Do
Fever above 101.5°F	Call our office immediately
Increasing redness, warmth, swelling, or discharge at the incision	Call our office immediately
Severe or rapidly worsening pain not controlled by medication	Call our office immediately
New or worsening weakness or numbness in the arms or legs	Go to the Emergency Room or call our office immediately
Loss of bowel or bladder control	Go to the Emergency Room — urgent
Calf pain, swelling, or redness (possible blood clot)	Go to the Emergency Room immediately
Difficulty breathing or chest pain	Call 911 immediately
Sudden new or worsening back pain or visible deformity change	Call our office — may indicate hardware problem or junctional failure
New neurological symptoms or gait change	Go to the Emergency Room

The information on this page is for general educational purposes only and does not constitute medical or legal advice. Consult your surgeon regarding your specific condition, treatment plan, and recovery.

Long Segment / Deformity Fusion