• Guido La Rosa, Giancarlo Giglio, and Leonardo Oggiano.
• Orthopedic Unit, Department of Surgery and Transplant Center, Bambino Gesù Children's Hospital, IRCCS, Palidoro (Rome), Via Torre di Palidoro snc, 00050, Fiumicino (Rome), Italy, guido.larosa@opbg.net.
• Eur Spine J. 2013 Nov 1;22 Suppl 6:S823-8.

PurposeAdolescent idiopathic scoliosis (AIS) is a tridimensional deformity characterized by coronal and sagittal profiles changes. We present a series of 62 patients affected by AIS and treated by thoracic Universal Clamps and transpedicular lumbar screws hybrid system.MethodsMean age was 13 years. Average pre-operative Cobb angle was 63° ± 12°. Patients were divided into two groups depending on the kyphosis angle: lower than 45° (51 patients, 82.3 %, mean 21° ± 3°) and higher than 45° (11 patients, 17.7 %, mean 62° ± 6°).ResultsThe average percentage of coronal correction was 70 ± 3 % (mean post-operative Cobb angle 19° ± 4°, P < 0.001). In patients with pre-operative physiological thoracic kyphosis-hypokyphosis, we observed an increase in the average value (32° ± 4°, P < 0.001), while in patients with pre-operative hyperkyphosis, mean decrease of thoracic kyphosis was 19° ± 3° (43° ± 4°, P < 0.001).ConclusionsThis case-series study showed the efficacy and safety of Universal Clamp hybrid system in correcting coronal deformity and restoring physiological thoracic kyphosis in patients affected by AIS.

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