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Stecher N, Heinke A, Żurawski AŁ, Harder MR, Schumann P, Jochim T, Malberg H. Torsobarography: Intra-Observer Reliability Study of a Novel Posture Analysis Based on Pressure Distribution. SENSORS (BASEL, SWITZERLAND) 2024; 24:768. [PMID: 38339484 PMCID: PMC10857123 DOI: 10.3390/s24030768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/16/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024]
Abstract
Postural deformities often manifest themselves in a sagittal imbalance and an asymmetric morphology of the torso. As a novel topographic method, torsobarography assesses the morphology of the back by analysing pressure distribution along the torso in a lying position. At torsobarography's core is a capacitive pressure sensor array. To evaluate its feasibility as a diagnostic tool, the reproducibility of the system and extracted anatomical associated parameters were evaluated on 40 subjects. Landmarks and reference distances were identified within the pressure images. The examined parameters describe the shape of the spine, various structures of the trunk symmetry, such as the scapulae, and the pelvic posture. The results showed that the localisation of the different structures performs with a good (ICC > 0.75) to excellent (ICC > 0.90) reliability. In particular, parameters for approximating the sagittal spine shape were reliably reproduced (ICC > 0.83). Lower reliability was observed for asymmetry parameters, which can be related to the low variability within the subject group. Nonetheless, the reliability levels of selected parameters are comparable to commercial systems. This study demonstrates the substantial potential of torsobarography at its current stage for reliable posture analysis and may pave the way as an early detection system for postural deformities.
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Affiliation(s)
- Nico Stecher
- Institute of Biomedical Engineering, Dresden University of Technology, 01307 Dresden, Germany
| | - Andreas Heinke
- Institute of Biomedical Engineering, Dresden University of Technology, 01307 Dresden, Germany
| | | | | | - Paula Schumann
- Institute of Biomedical Engineering, Dresden University of Technology, 01307 Dresden, Germany
| | - Thurid Jochim
- Institute of Biomedical Engineering, Dresden University of Technology, 01307 Dresden, Germany
| | - Hagen Malberg
- Institute of Biomedical Engineering, Dresden University of Technology, 01307 Dresden, Germany
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Zhang H, Pan Y, Ju C, Shen Y, Li X, Ye X, Fan B, Li S, Jiang Y, Yao B, Ying X. Imaging study of coccygeal morphology in adolescent idiopathic scoliosis. Sci Rep 2024; 14:727. [PMID: 38184687 PMCID: PMC10771437 DOI: 10.1038/s41598-024-51276-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 01/03/2024] [Indexed: 01/08/2024] Open
Abstract
The correlation between scoliosis and sagittal curvature of the cervical, thoracic, and lumbar spine have already been reported in previous studies. However, as a part of the spine, the change in coccygeal morphology in AIS patients has not yet been studied. In this study, a retrospective analysis was performed on 400 patients who were divided into a non-scoliotic group (206 patients) and an AIS group (194 patients). The Postacchini coccygeal radiological classification that was modified by Nathan was used to observe and compare the sagittal coccygeal morphology between the two groups. The results showed that the non-scoliotic group had the highest percentage (52.4%) of patients with type I and the lowest (3.4%) proportion of patients with type V; moreover, the AIS group had the highest percentage (69.1%) of patients with type I and the lowest (1.5%) proportion of patients with type V. The coccygeal morphology was significantly different between the non-scoliotic group and the AIS group (P = 0.001). No significant differences in coccygeal morphology were found between the males and females in the two groups (mild and moderate scoliosis and different segmental scoliosis). In addition, a significant correlation between coccygeal morphology and scoliosis (P = 0.035) was found. In conclusion, coccygeal morphology significantly differs between AIS patients and non-scoliotic adolescents. There was a smaller proportion of patients with a type I coccyx and a larger proportion of patients with a type II or type III coccyx in the AIS group than in the non-scoliotic group. In other words, the presence of a more pronounced coccygeal curve in AIS patients may be caused by an incorrect sitting position and an imbalance in the contraction of the pelvic muscles. It should be further studied whether correcting the sitting position and muscular imbalances could change coccygeal morphology and subsequently affect the development of AIS.
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Affiliation(s)
- Haoyang Zhang
- The 3rd Clinical Medical College of Zhejiang, Chinese Medical University, Hangzhou, China
| | - Yingsen Pan
- The 3rd Clinical Medical College of Zhejiang, Chinese Medical University, Hangzhou, China
| | - Chenhao Ju
- Department of Acupuncture and Massage, Hangzhou Binjiang Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Yi Shen
- The 3rd Clinical Medical College of Zhejiang, Chinese Medical University, Hangzhou, China
| | - Xiaoming Li
- Tuina Department, The 3rd Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Xin Ye
- Tuina Department, The 3rd Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Binghua Fan
- Tuina Department, The 3rd Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Shuailin Li
- Tuina Department, The 3rd Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Yongliang Jiang
- The 3rd Clinical Medical College of Zhejiang, Chinese Medical University, Hangzhou, China
| | - Benshun Yao
- Tuina Department, The 3rd Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.
| | - Xiaoming Ying
- Tuina Department, The 3rd Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.
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