Sagittal Plane Correction With Pass-LP Device in Adult Deformity Patients

Inclusion criteria

- Lumbar or thoraco-lumbar Adult Deformity requiring posterior spinal instrumentation
and fusion like:

- Scoliosis

- Kyphosis

- Kyphoscoliosis

- Patient with a Cobb angle ≥ 30° and/or confirmed sagittal imbalance defined as
sagittal vertical axis (SVA) more or equal to 5cm and/or a loss of lumbar lordosis
versus the pelvic incidence

- Patient ≥ 21 years old

- Surgery that requires 4 or more levels to be operated

- Patient with complete pre-operative radiographic data: antero-posterior and lateral
standing full spine x-rays (from hips to C2) and lateral bending x-rays (standing)

- Patient able to complete a self-administered questionnaire

- Patient able to sign a consent form

Exclusion criteria

- Patient operated with posterior spinal fusion without PASS LP device

- Patients who required a Vertebral Column Resection technique surgery

- Neuromuscular scoliosis or diseases and any neuro-related pathology

- Spinal cord abnormalities with any neurologic symptoms or signs

- Primary abnormalities of bones (e.g. osteogenesis imperfecta)

- Recent significant trauma

- Patient is involved in current medical litigation

- Metabolic spinal pathology

- Pathologic obesity (BMI > 40)

- Patients with infection (in particularly osteomyelitis)

- Patient < 21 years old

- Pregnancy or intended to get pregnant during the next 3 years

- Insulin-dependent diabetes

- All other contra-indications given in the PASS® LP System instructions for use

- Patient unable to sign an informed consent form

- Patient unable to complete a self-administered questionnaire