Purpose Posterior-only approach arthrodesis by all-pedicle screw instrumentation has a correction rate similar to correction obtained by traditional combined anterior/posterior approach surgery and avoids the complications associated with the thoracic approach. Methods We treated 25 patients, with a mean age 16.5 years, with severe adolescent idiopathic scoliosis by posterior-only approach using all-screw instrumentation arthrodesis. Mean scoliosis curve in Cobb degrees was 95°C obb. All cases were treated by the same senior surgeon, by free hand technique, without intraoperative neurophysiologic monitoring and spine navigation aids. Results Mean scoliosis curve after surgery was 37°Cobb. Mean follow-up was 4 years. No perioperative complications, curve progression or arthrodesis malunion were reported at the follow-up. Conclusions Posterior spinal fusion with pedicle screwonly instrumentation obtains a good and stable correction of severe scoliosis; compared to hybrid instrumentation, it allows a greater coronal correction of the deformity and less correction loss at the follow-up.
All images demonstrated a remarkable shrinkage of the cystic lesion and bone cortex thickening. In all patients, circumscribed areas of lucency persisted at radiography, corresponding to residual cystic areas without fluid-fluid levels at MRI. Pain, which was present in all the patients before treatment, was relieved within a month. According to our experience, direct percutaneous Ethibloc injection is effective in the treatment of ABC and can be recommended as the first-choice treatment. Due to its higher sensitivity MRI must be included either in the pretreatment phase to study the multilocular structure or in the imaging follow-up to evaluate the efficacy of Ethibloc in persistently non-responsive areas.
Bracing is a viable treatment strategy in thoracic lumbar kyphosis and can obtain good clinical results at medium terms follow-up even if kyphosis deformity remains in radiographs. Surgical treatment is effective in severe evolving cases both at cervical and thoracic lumbar level, main difficulties arose from unavailability of dedicated instrumentation in very young patient, as even smallest devices available are often too big.
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