Maria Grazia Piancino1, Paola Dalmasso2, Fabio Borello3, Pasquale Cinnella4, Vito Crincoli5, Umberto Garagiola6, Corrado de Biase7, Ingrid Tonni8, Giada Matacena7, Andrea Deregibus7. 1. Department of Surgical Sciences, Dental School C.I.R., Division of Orthodontics, University of Turin, via Nizza 230, 10126 Turin, Italy. Electronic address: mariagrazia.piancino@unito.it. 2. Department of Public Health and Pediatrics, School of Medicine, University of Turin, Italy. 3. I.N.Ri.M. (National Institute of Metrologic Research), Str. Delle Cacce 91, 10135 Turin, Italy. 4. Spine Surgery Department, CTO Hospital, University Hospital Company "Città della Salute e della Scienza di Torino", Corso Bramante 88, 10126 Turin, Italy. 5. Department of Basic Medical Sciences, Neurosciences and Sensory Organs, Division of Complex Operating Unit of Dentistry, "Aldo Moro" University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy. 6. Department of Biomedical Surgical and Dental Sciences Maxillo-Facial and Odontostomatology Unit, Fondazione Cà Granda IRCCS Ospedale Maggiore Policlinico University of Milan, Milan, Italy. 7. Department of Surgical Sciences, Dental School C.I.R., Division of Orthodontics, University of Turin, via Nizza 230, 10126 Turin, Italy. 8. Medical and Surgical Specialties, Radiological Sciences and Public Health, Dental School, Division of Orthodontics, University of Brescia, Piazza del Mercato 15, 25121 Brescia, Italy.
Abstract
PURPOSE: The relationship between thoracic-lumbar-sacral spine sagittal alignment and craniofacial morphology is still controversial. Evidence-based results are difficult to obtain and scientific studies are inhomogeneous. The aim of this study was to investigate the difference of thoracic-lumbar-sacral spine posture and cephalometric values comparing two groups of subjects with different cranial structure in the sagittal plane. METHODS: Eighty-one subjects were consecutively selected and divided into two groups, according to the orientation of the condyle-orbital plane (CoOr) with respect to the superior maxilla (SpP): Group1: 49 subjects 11.6 (2.1) years showing posterior-rotation of CoOr: SpP^CoOr ≤ -2°, -4.1°(2.1°); Group2: 32 subjects 12.9 (2.3)years showing anterior-rotation of CoOr: SpP^CoOr ≥ 2°, 3.7°(1.9°). Each patient underwent in blinding, Spinal Mouse recording and cephalometry of the skull. RESULTS: Group1 showed a significant forward tilting of the spine 4.4°(1.8°) with respect to Group2 2.4°(1.3°) (p < 0.0001) and higher values related to the vertical dimension of the skull: higher maxillary divergency (p < 0.0001), steep occlusal plane (p < 0.0007), higher gonial angle (p < 0.001). DISCUSSION: The results of this study showed a difference in the thoracic-lumbar-sacral spine inclination between groups with different craniofacial morphology. The achievement of this outcome is important to improve our multidisciplinary evaluation and treatment planning.
PURPOSE: The relationship between thoracic-lumbar-sacral spine sagittal alignment and craniofacial morphology is still controversial. Evidence-based results are difficult to obtain and scientific studies are inhomogeneous. The aim of this study was to investigate the difference of thoracic-lumbar-sacral spine posture and cephalometric values comparing two groups of subjects with different cranial structure in the sagittal plane. METHODS: Eighty-one subjects were consecutively selected and divided into two groups, according to the orientation of the condyle-orbital plane (CoOr) with respect to the superior maxilla (SpP): Group1: 49 subjects 11.6 (2.1) years showing posterior-rotation of CoOr: SpP^CoOr ≤ -2°, -4.1°(2.1°); Group2: 32 subjects 12.9 (2.3)years showing anterior-rotation of CoOr: SpP^CoOr ≥ 2°, 3.7°(1.9°). Each patient underwent in blinding, Spinal Mouse recording and cephalometry of the skull. RESULTS: Group1 showed a significant forward tilting of the spine 4.4°(1.8°) with respect to Group2 2.4°(1.3°) (p < 0.0001) and higher values related to the vertical dimension of the skull: higher maxillary divergency (p < 0.0001), steep occlusal plane (p < 0.0007), higher gonial angle (p < 0.001). DISCUSSION: The results of this study showed a difference in the thoracic-lumbar-sacral spine inclination between groups with different craniofacial morphology. The achievement of this outcome is important to improve our multidisciplinary evaluation and treatment planning.