Stand-to-Sit Kinematics of the Pelvis Is Not Always as Expected: Hip and Spine Pathologies Can Have an Impact
| Autor: | J.-Y. Lazennec, Wafa Skalli, Youngwoo Kim, François Girinon, Claudio Vergari |
|---|---|
| Přispěvatelé: | Graduate School of Medicine and Faculty of Medicine Kyoto University, Service de chirurgie orthopédique et traumatologique [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut de Biomecanique Humaine Georges Charpak, Arts et Métiers ParisTech-Université Paris 13 (UP13), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de Chirurgie Orthopédique et Traumatologique [CHU Pitié-Salpêtrière], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male musculoskeletal diseases Adolescent Rotation [SDV]Life Sciences [q-bio] Kinematics Sitting Sciences de l'ingénieur Pelvis Young Adult 03 medical and health sciences [SPI]Engineering Sciences [physics] Imaging Three-Dimensional 0302 clinical medicine Screw axis Image Processing Computer-Assisted Humans Medicine Orthopedics and Sports Medicine Aged Aged 80 and over Stand to sit Orthodontics Sitting Position 030222 orthopedics business.industry Significant difference Acetabulum Middle Aged Spine Biomechanical Phenomena Radiography medicine.anatomical_structure Standing Position Sciences du vivant Female business |
| Zdroj: | Journal of Arthroplasty Journal of Arthroplasty, Elsevier, 2019, pp.ePub |
| ISSN: | 0883-5403 |
| Popis: | Background Stand-to-sit pelvis kinematics is commonly considered as a rotation around the bicoxofemoral axis. However, abnormal kinematics could occur for patients with musculoskeletal disorders, affecting the hip-spine complex. The aim of this study is to perform a quantitative analysis of the stand-to-sit pelvis kinematics using 3D reconstruction from biplanar x-rays. Methods Thirty volunteers as a control group (C), 30 patients with hip pathology (Hip), and 30 patients with spine pathology (Spine) were evaluated. All subjects underwent standing and sitting full-body biplanar x-rays. Three-dimensional reconstruction was performed in each configuration and then translated such as the middle of the line joining the center of each acetabulum corresponds to the origin. Rigid registration quantified the finite helical axis (FHA) describing the transition between standing and sitting with two specific parameters. The orientation angle (OA) is the signed 3D angle between FHA and bicoxofemoral axis, and the rotation angle (RA) represents the signed angle around FHA. Results The mean OA was −1.8° for the C group, 0.3° for Hip group, and −2.4° for Spine group. There was no significant difference in mean OA between groups. However, variability was higher for the Spine group with a standard deviation (SD) of 15.9° compared with 10.8° in the C group and 12.3° in the Hip group. The mean RA in the C group was 18.1° (SD, 9.0°). There was significant difference in RA between the Hip and Spine groups (21.1° [SD, 8.0°] and 16.4° [SD, 10.8°], respectively) (P = .04). Conclusion Hip and spine pathologies affect stand-to-sit pelvic kinematics. |
| Databáze: | OpenAIRE |
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