Surgery for
cerebral palsy

Can cerebral palsy be treated with surgery?

Surgery for CP is not a cure, but it can dramatically improve quality of life by addressing musculoskeletal complications. Orthopedic and neurosurgical procedures reduce pain, correct deformities, improve posture and walking ability, and help limit contractures, hip dislocations, or spinal curvature from worsening.

These surgical approaches become especially important when conservative measures ( physical therapy, medications, braces, or Botox injections) are insufficient. Surgery is never the first step; it is typically considered after an adequate trial of non-surgical care. When well-timed and combined with vigorous rehabilitation, it can be transformative.

Common cerebral palsy surgeries

Orthopedic surgery is the most frequently performed surgical intervention in CP, addressing bones, joints, muscles, tendons, and spine. Recent literature highlights that osteotomies account for nearly half of all reported procedures. Surgery may be staged as single-event multilevel surgery (SEMLS), enabling multiple corrections in one session to reduce repeated anesthesia and rehabilitation periods.

Single-event multilevel surgery (SEMLS)

SEMLS is a plan more than a single operation. Every muscle, tendon and bone problem the surgical team has identified at the hips, knees and feet is corrected under one anesthetic, so the child goes through one hospital stay and one rehabilitation period instead of an operation every year or two. In the only randomized trial, run at the Royal Children’s Hospital in Melbourne, the 11 children in the surgical group had a mean of eight procedures each (Thomason et al., 2011). Their Gait Profile Score improved by 34% at twelve months. Gross motor function and quality of life showed no measurable change until twenty-four months, when the GMFM-66 score had risen 4.9%. Knowing that the functional gains arrived in the second year helps when the first year feels slow.

Tendon and muscle lengthening

Lengthening procedures release a muscle that spasticity has held short: the hamstrings behind the knee, the adductors along the inner thigh, the gastrocnemius and soleus in the calf, or the Achilles tendon itself. Some surgeons now do them percutaneously, through small punctures rather than an open incision. A 2026 review of 14 studies of the percutaneous technique found gains in range of motion and function after hamstring lengthening and more hip abduction after adductor lengthening (Tedesco and Nicolini-Panisson, 2026). It also logged overcorrection, recurrence, nerve and muscle injury, and increased pelvic tilt, and judged the evidence too thin to settle the question. Ask the surgeon how often they see overcorrection in their own patients.

Osteotomy (bone realignment)

An osteotomy cuts a bone, turns or angles it into a better position, and holds it there while it heals. The most studied in CP is the femoral derotation osteotomy, for children whose thigh bones are twisted inward so that they walk with their feet turned in. A 2025 meta-analysis of 46 studies covering 1,144 children who walk found in-toeing corrected in 74% at one year and 69% at five years, with a recurrence rate of 13% (Gresits et al., 2025). The authors rated the underlying data as low quality and found almost nothing on quality of life or satisfaction. Osteotomies of the tibia, pelvis and foot work on the same principle.

Hip surgery

Hip surgery in CP is usually triggered by an X-ray measurement called the migration percentage: how much of the ball at the top of the thigh bone sits outside the socket. The AACPDM hip surveillance care pathway recommends referral to a pediatric orthopedic surgeon when it is greater than 30%, or when hip abduction falls below 30 degrees (AACPDM). Earlier displacement may be managed with a release of the adductor muscles. A hip that has moved further generally needs reconstruction, a varus derotation osteotomy of the femur, sometimes combined with a pelvic osteotomy. The complication worth asking about is avascular necrosis, loss of blood supply to the head of the femur. A review of 29 studies put the overall rate at 7.5%, and its authors suspected the true figure is higher: the two studies that made avascular necrosis their primary outcome reported rates of 37% and 46% (Hesketh et al., 2016).

Selective dorsal rhizotomy (SDR)

SDR is a neurosurgical procedure that permanently reduces lower-limb spasticity. Sensory nerve rootlets in the spinal cord that contribute to muscle tightness are identified using intraoperative electromyography, and a portion are selectively severed, preserving voluntary movement while reducing the abnormal signals that cause stiffness. It is one of the surgical interventions carrying supportive evidence in the 2019 systematic review of cerebral palsy interventions that most clinics work from.

Who is a good SDR candidate?

Selective dorsal rhizotomy suits a specific profile. Children with spastic diplegia, meaning cerebral palsy affecting mainly the legs. Able to walk independently or with an aid. Spasticity limiting mobility while muscle strength and coordination are preserved underneath it. Roughly ages three to ten, though careful screening can extend that either way. And a family with the motivation and capacity for intensive postoperative rehabilitation, which is not a formality: the operation reduces tone and the therapy afterward is what converts that into function.

Benefits

Reduced stiffness, improved walking patterns, prevention of secondary musculoskeletal problems. Because the reduction in spasticity is permanent, children can often make larger therapy gains without the recurring cycle of Botox treatments.

Recovery

Children begin therapy within days and continue intensive outpatient rehabilitation for months. Full functional gains may take 12–24 months to fully emerge as the child relearns movement without spasticity.

What is the best age for cerebral palsy surgery?

No universal age applies. Surgical timing depends on the child’s functional level, spasticity progression, and the risk of deformity. Multidisciplinary input from orthopedic surgeons, neurosurgeons, physiatrists, and rehabilitation specialists ensures timing is individualized.

Timing differs by procedure. Selective dorsal rhizotomy is usually done between three and ten, while neuroplasticity still supports relearning movement and before secondary muscle and bone changes set in. Botulinum toxin and soft tissue procedures often begin in toddlerhood when spasticity is most dynamic, and repeat through growth. Single-event multilevel orthopedic surgery is typically timed for school age, between six and twelve, once the gait pattern has stabilized. Hip surveillance runs continuously from early childhood with surgery triggered by imaging rather than by symptoms, and that distinction matters: a Swedish population programme built on scheduled radiographs took hip dislocation from 8% to zero across two decades of birth cohorts. Spinal fusion follows curve progression, usually in adolescence.

Earlier intervention generally prevents progressive deformity. Always consult more than one specialist opinion before committing to major surgery to confirm candidacy and optimal timing.

Recovery timelines by surgery type

Recovery timelines vary widely by procedure. The families who see the best outcomes are those who enter surgery with a clear rehabilitation plan already in place and a realistic timeline for when gains will emerge.

Rehabilitation: the key to surgical success

Surgical success depends as much on rehabilitation as on the procedure itself. Coordinated postoperative therapy (physical therapy, occupational therapy, and orthotic support) is essential for regaining function, rebuilding strength, and translating anatomical corrections into real-world gains.

Many children show long-term improvements in gait, posture, comfort, and independence when surgery is integrated with ongoing therapy and family support. Key principles for maximizing outcomes:

Four things separate a good surgical outcome from a disappointing one, and none of them happen in theatre. Plan the rehabilitation before the operation, knowing which clinic will deliver postoperative care, what the goals are and what equipment will be needed. Expect the family to participate, since daily home stretches between sessions do more than the sessions alone. Set realistic expectations, because gains emerge across months and years and should be tracked against defined measures rather than impressions. And coordinate the team, so that surgeon, physiatrist, physical therapist, occupational therapist, orthotist and school are working to the same timeline.

What does cerebral palsy surgery cost?

There is no single price, and a figure quoted without the procedure list behind it means little. A multilevel operation of the kind the Melbourne trial studied, averaging eight procedures per child, is a different bill from one Achilles lengthening.

The hospital charge follows the number of procedures, the time in the operating room, and the length of the inpatient stay, which runs from a few days for an intrathecal baclofen pump to one or two weeks for spinal fusion. After discharge come the costs families tend to miss: casts, new braces once the old ones no longer fit the corrected leg, equipment for the weeks a child cannot bear weight, and months of outpatient physical therapy. Ask the surgeon’s office for the procedure codes before the operation. With them, the insurer can tell you what it will pay and the hospital can produce an estimate.

Some costs no insurer covers. A Boston Children’s Hospital study followed 52 families whose children had severe, non-ambulatory CP and were admitted for hip or spine surgery. Their non-medical out-of-pocket spending ranged from $193 to $7,192.71 per hospitalization, with a mean of $2,001.92, about 4% of the family’s annual earned income (Vessey et al., 2017). Distance traveled to the hospital was one of the predictors of higher spending, which matters when the nearest center doing a given operation is hours away. Ask the hospital’s social worker about lodging and travel help before admission, not after.

For children on Medicaid, the EPSDT benefit requires states to provide medically necessary treatment for enrollees under 21 “whether or not such services are covered under the State plan” (42 U.S.C. § 1396d(r)(5)). Medicaid and private plans can still require prior authorization for planned surgery, in which case the surgeon’s office submits the clinical notes and imaging that justify it. A Medicaid denial can be challenged through the state’s fair hearing process, which federal rules require for any claim for covered services that is denied (42 CFR § 431.220).