Spinal alignment measurement with Kinect sensor is valid for thoracic kyphosis but not for lumbar lordosis
Abstract Background Spinal alignment evaluation is commonly performed in the clinical setting during rehabilitation. However, there is no simple method for its quantitative measurement. Recently, the depth cameras in Kinect sensors have been employed in various commercial and research projects in th...
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| Format: | Article |
| Language: | English |
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BMC
2023-03-01
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| Series: | Journal of Orthopaedic Surgery and Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13018-023-03693-w |
| _version_ | 1827983265177272320 |
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| author | Hitoshi Koda Yoshihiro Kai Noriyuki Kida Toru Morihara |
| author_facet | Hitoshi Koda Yoshihiro Kai Noriyuki Kida Toru Morihara |
| author_sort | Hitoshi Koda |
| collection | DOAJ |
| description | Abstract Background Spinal alignment evaluation is commonly performed in the clinical setting during rehabilitation. However, there is no simple method for its quantitative measurement. Recently, the depth cameras in Kinect sensors have been employed in various commercial and research projects in the healthcare field. We hypothesized that the time-of-flight technology of the Kinect sensor could be applied to quantitatively evaluate spinal alignment. The purpose of this study was to develop a simple and noninvasive evaluation for spinal alignment using the Kinect sensor and to investigate its validity. Methods Twenty-four healthy men participated in the study. Measurement outcomes were the thoracic kyphosis and lumbar lordosis angles in the standing position, using a Spinal Mouse, the validity of which has been previously reported, and the Kinect sensor. In the measurement by the Kinect sensor, a program was created to obtain the three-dimensional coordinates of each point within an area marked on the monitor, and the sums of the angles at each vertebral level were calculated for the thoracic and lumbar areas. Pearson's correlation coefficient was used to analyze the relationship between the Kinect sensor and Spinal Mouse measurements of thoracic kyphosis and lumbar lordosis angles. Results There was a significant positive and moderate correlation between the thoracic kyphosis measurements taken by each device. Contrarily, there was no significant correlation in the lordosis angle between measurements using the Kinect sensor and Spinal Mouse. Conclusions Our results demonstrated the validity of measuring the thoracic kyphosis angle using the Kinect sensor. This indicates that the depth camera in the Kinect sensor is able to perform accurate thoracic alignment measurements quickly and noninvasively. |
| first_indexed | 2024-04-09T22:45:58Z |
| format | Article |
| id | doaj.art-79144cfe55904926aa5a78b2e1038bab |
| institution | Directory Open Access Journal |
| issn | 1749-799X |
| language | English |
| last_indexed | 2024-04-09T22:45:58Z |
| publishDate | 2023-03-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj.art-79144cfe55904926aa5a78b2e1038bab2023-03-22T11:51:18ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2023-03-011811510.1186/s13018-023-03693-wSpinal alignment measurement with Kinect sensor is valid for thoracic kyphosis but not for lumbar lordosisHitoshi Koda0Yoshihiro Kai1Noriyuki Kida2Toru Morihara3Department of Rehabilitation Sciences, Faculty of Allied Health Sciences, Kansai University of Welfare SciencesDepartment of Physical Therapy, Faculty of Health Science, Kyoto Tachibana UniversityFaculty of Arts and Sciences, Kyoto Institute of Technology UniversityDepartment of Orthopedics, Marutamachi Rehabilitation ClinicAbstract Background Spinal alignment evaluation is commonly performed in the clinical setting during rehabilitation. However, there is no simple method for its quantitative measurement. Recently, the depth cameras in Kinect sensors have been employed in various commercial and research projects in the healthcare field. We hypothesized that the time-of-flight technology of the Kinect sensor could be applied to quantitatively evaluate spinal alignment. The purpose of this study was to develop a simple and noninvasive evaluation for spinal alignment using the Kinect sensor and to investigate its validity. Methods Twenty-four healthy men participated in the study. Measurement outcomes were the thoracic kyphosis and lumbar lordosis angles in the standing position, using a Spinal Mouse, the validity of which has been previously reported, and the Kinect sensor. In the measurement by the Kinect sensor, a program was created to obtain the three-dimensional coordinates of each point within an area marked on the monitor, and the sums of the angles at each vertebral level were calculated for the thoracic and lumbar areas. Pearson's correlation coefficient was used to analyze the relationship between the Kinect sensor and Spinal Mouse measurements of thoracic kyphosis and lumbar lordosis angles. Results There was a significant positive and moderate correlation between the thoracic kyphosis measurements taken by each device. Contrarily, there was no significant correlation in the lordosis angle between measurements using the Kinect sensor and Spinal Mouse. Conclusions Our results demonstrated the validity of measuring the thoracic kyphosis angle using the Kinect sensor. This indicates that the depth camera in the Kinect sensor is able to perform accurate thoracic alignment measurements quickly and noninvasively.https://doi.org/10.1186/s13018-023-03693-wSpinal alignmentKinect sensorAssessment |
| spellingShingle | Hitoshi Koda Yoshihiro Kai Noriyuki Kida Toru Morihara Spinal alignment measurement with Kinect sensor is valid for thoracic kyphosis but not for lumbar lordosis Journal of Orthopaedic Surgery and Research Spinal alignment Kinect sensor Assessment |
| title | Spinal alignment measurement with Kinect sensor is valid for thoracic kyphosis but not for lumbar lordosis |
| title_full | Spinal alignment measurement with Kinect sensor is valid for thoracic kyphosis but not for lumbar lordosis |
| title_fullStr | Spinal alignment measurement with Kinect sensor is valid for thoracic kyphosis but not for lumbar lordosis |
| title_full_unstemmed | Spinal alignment measurement with Kinect sensor is valid for thoracic kyphosis but not for lumbar lordosis |
| title_short | Spinal alignment measurement with Kinect sensor is valid for thoracic kyphosis but not for lumbar lordosis |
| title_sort | spinal alignment measurement with kinect sensor is valid for thoracic kyphosis but not for lumbar lordosis |
| topic | Spinal alignment Kinect sensor Assessment |
| url | https://doi.org/10.1186/s13018-023-03693-w |
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