학술논문
Motion Capture-based 3-dimensional Measurement of Range of Motion in Patients Undergoing Cervical Laminoplasty.
Document Type
Academic Journal
Author
Kato S; Department of Orthopaedic Surgery.; Fujiwara S; Department of Rehabilitation Medicine, The University of Tokyo.; Ohtomo N; Department of Orthopaedic Surgery.; Yamato Y; Department of Orthopaedic Surgery.; Sasaki K; Department of Orthopaedic Surgery.; Yu J; Department of Orthopaedic Surgery.; Doi T; Department of Orthopaedic Surgery.; Taniguchi Y; Department of Orthopaedic Surgery.; Matsubayashi Y; Department of Orthopaedic Surgery.; Ushikubo T; Anima, Co., Ltd., Tokyo, Japan.; Ogata T; Department of Rehabilitation Medicine, The University of Tokyo.; Tanaka S; Department of Orthopaedic Surgery.; Oshima Y; Department of Orthopaedic Surgery.
Source
Publisher: Wolters Kluwer Country of Publication: United States NLM ID: 101675083 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2380-0194 (Electronic) Linking ISSN: 23800186 NLM ISO Abbreviation: Clin Spine Surg Subsets: MEDLINE
Subject
Language
English
Abstract
Study Design: A prospective study.
Objective: To measure 3-dimensional cervical range of motion (ROM) by noninvasive optical tracking-based motion-capture technology in patients undergoing laminoplasty, and to elucidate the postoperative effects of laminoplasty on cervical mobility.
Summary of Background Data: Cervical laminoplasty is a motion-sparing decompression surgery for degenerative cervical myelopathy. Unlike cervical laminectomy and fusion, the true postoperative impact of laminoplasty on neck motion has not been well studied.
Methods: Participants comprised 25 patients undergoing double-door cervical laminoplasty for degenerative cervical myelopathy in a single center. Maximum flexion/extension, left/right rotation, and left/right side bending were recorded using the motion-capture device preoperatively and 3 months postoperatively. ROMs in 3 orthogonal axes were calculated. Preoperative differences in C2-7 Cobb angles on lateral flexion/extension x-rays were also measured as the radiologic ROM to assess reliability. Preoperative and 1-year postoperative Japanese Orthopaedic Association score, Neck Disability Index [NDI], and Euro-QOL were recorded, and correlations with ROMs were assessed.
Results: Preoperative mean (±SD) ROMs for flexion/extension, rotation, and side bending were 90±17, 107±16, and 53±17 degrees, respectively. Although radiologic sagittal ROM measurement showed a smaller range than motion capture, averaging 36±13 degrees, a moderate to strong correlation between radiologic and motion capture values was observed (R=0.57, P=0.003). Preoperative NDI showed a negative correlation with coronal ROM (rho=-0.547, P=0.02). Postoperative ROM showed a significant reduction in rotation (95±16 degrees, P=0.002) but not in flexion/extension or side bending.
Conclusions: Three-dimensional motion-capture analysis allowed reliable measurement of cervical ROM. Rotational ROM was significantly reduced after laminoplasty, showing that cervical kinematics are still significantly altered.
Competing Interests: The authors declare no conflict of interest.
(Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
Objective: To measure 3-dimensional cervical range of motion (ROM) by noninvasive optical tracking-based motion-capture technology in patients undergoing laminoplasty, and to elucidate the postoperative effects of laminoplasty on cervical mobility.
Summary of Background Data: Cervical laminoplasty is a motion-sparing decompression surgery for degenerative cervical myelopathy. Unlike cervical laminectomy and fusion, the true postoperative impact of laminoplasty on neck motion has not been well studied.
Methods: Participants comprised 25 patients undergoing double-door cervical laminoplasty for degenerative cervical myelopathy in a single center. Maximum flexion/extension, left/right rotation, and left/right side bending were recorded using the motion-capture device preoperatively and 3 months postoperatively. ROMs in 3 orthogonal axes were calculated. Preoperative differences in C2-7 Cobb angles on lateral flexion/extension x-rays were also measured as the radiologic ROM to assess reliability. Preoperative and 1-year postoperative Japanese Orthopaedic Association score, Neck Disability Index [NDI], and Euro-QOL were recorded, and correlations with ROMs were assessed.
Results: Preoperative mean (±SD) ROMs for flexion/extension, rotation, and side bending were 90±17, 107±16, and 53±17 degrees, respectively. Although radiologic sagittal ROM measurement showed a smaller range than motion capture, averaging 36±13 degrees, a moderate to strong correlation between radiologic and motion capture values was observed (R=0.57, P=0.003). Preoperative NDI showed a negative correlation with coronal ROM (rho=-0.547, P=0.02). Postoperative ROM showed a significant reduction in rotation (95±16 degrees, P=0.002) but not in flexion/extension or side bending.
Conclusions: Three-dimensional motion-capture analysis allowed reliable measurement of cervical ROM. Rotational ROM was significantly reduced after laminoplasty, showing that cervical kinematics are still significantly altered.
Competing Interests: The authors declare no conflict of interest.
(Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)