title: A novel spinal kinematic analysis using X-ray imaging and vicon motion analysis: a case study.
abstract: This study highlights a novel spinal kinematic analysis method and the feasibility of X-ray imaging measurements to accurately assess thoracic spine motion. The advanced X-ray Nash-Moe method and analysis were used to compute the segmental range of motion in thoracic vertebra pedicles in vivo. This Nash-Moe X-ray imaging method was compared with a standardized method using the Vicon 3-dimensional motion capture system. Linear regression analysis showed an excellent and significant correlation between the two methods (R2 = 0.99, p < 0.05), suggesting that the analysis of spinal segmental range of motion using X-ray imaging measurements was accurate and comparable to the conventional 3-dimensional motion analysis system. Clinically, this novel finding is compelling evidence demonstrating that measurements with X-ray imaging are useful to accurately decipher pathological spinal alignment and movement impairments in idiopathic scoliosis (IS).
authors.affiliation: Department of Physical Medicine and Rehabilitation, Seoul Hyu Hospital, Gyeonggi-do, Republic of South Korea Department of Physical Therapy, Yonsei University, Wonju City, Kangwon-do, Republic of South Korea.
authors.forename: Dong K
authors.initials: DK
authors.lastname: Noh
authors.forename: Nam G
authors.initials: NG
authors.lastname: Lee
authors.forename: Joshua H
authors.initials: JH
authors.lastname: You
mesh_terms: D000328:Adult; D000465:Algorithms; D001696:Biomechanical Phenomena; D002138:Calibration; D006801:Humans; D016014:Linear Models; D009038:Motion; D011857:Radiographic Image Interpretation, Computer-Assisted; D016059:Range of Motion, Articular; D012044:Regression Analysis; D015203:Reproducibility of Results; D012600:Scoliosis / Q000473:pathology*; D012984:Software; D013131:Spine / Q000473:pathology*; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging* / Q000473:pathology*; D014965:X-Rays; D055815:Young Adult
keywords: Accuracy; X-ray imaging; idiopathic scoliosis; spinal kinematics