Relationship between TIA minus C0-7 angle and C2-7 SVA: analysis of 113 symptomatic patients
Abstract Background Measurement of T1 slope (T1S) can be difficult due to the anatomical positioning of the shoulders. And thoracic inlet angle (TIA) was a morphological parameter and not changed by the position. We proposed a new parameter, TIA minus C0-7 angle (TIA-C07), to evaluate C2-7 SVA in or...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2022-04-01
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| Series: | BMC Musculoskeletal Disorders |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s12891-022-05301-0 |
| _version_ | 1819210141974659072 |
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| author | Kai Yang Xiang-Yu Li Yu Wang Chao Kong Shi-Bao Lu |
| author_facet | Kai Yang Xiang-Yu Li Yu Wang Chao Kong Shi-Bao Lu |
| author_sort | Kai Yang |
| collection | DOAJ |
| description | Abstract Background Measurement of T1 slope (T1S) can be difficult due to the anatomical positioning of the shoulders. And thoracic inlet angle (TIA) was a morphological parameter and not changed by the position. We proposed a new parameter, TIA minus C0-7 angle (TIA-C07), to evaluate C2-7 SVA in order to overcome the T1S imperfection. Methods This was a retrospective radiological analysis of symptomatic subjects. The following cervical parameters were measured: Cervical lordosis angle (CL), C0-7 angle (C0-7), occiput-C2 lordosis angle (O-C2), C2-7 sagittal vertical axis (C2–7 SVA), TIA and TIA-C07. The Pearson correlation test was calculated, and the stepwise multiple regression analysis was conducted to determine the best predictor for C2-7 SVA. A paired sample t test was used to compare the predicted and measured C2-7 SVA. Results The mean age of 113 patients was 60.02 ± 9.67. The average O-C2, CL, C0-7, TIA, TIA-C07 and C2-C7 SVA was 29.24 ± 8.48°, 13.67 ± 11.22°, 42.91 ± 11.44°, 76.07 ± 9.54°, 33.16 ± 13.18° and 21.34 ± 11.42 mm. The predictive formula was founded: C2-7 SVA = 2.80 + 0.56 * (TIA—C07) (R = 0.645, R2 = 0.416). There was no statistical difference between the predicted and the measured C2-7 SVA (t = 0.085, P = 0.933). Conclusions TIA and C0-7 mismatch may significantly impact cervical alignment, and a greater T1A-C07 was related to a greater degree of C2-7 SVA. TIA-C07 may be a more important predictor for C2-7 SVA. |
| first_indexed | 2024-12-23T06:06:28Z |
| format | Article |
| id | doaj.art-bd560a8a08714b339701366c69aca178 |
| institution | Directory Open Access Journal |
| issn | 1471-2474 |
| language | English |
| last_indexed | 2024-12-23T06:06:28Z |
| publishDate | 2022-04-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Musculoskeletal Disorders |
| spelling | doaj.art-bd560a8a08714b339701366c69aca1782022-12-21T17:57:33ZengBMCBMC Musculoskeletal Disorders1471-24742022-04-012311910.1186/s12891-022-05301-0Relationship between TIA minus C0-7 angle and C2-7 SVA: analysis of 113 symptomatic patientsKai Yang0Xiang-Yu Li1Yu Wang2Chao Kong3Shi-Bao Lu4Department of Orthopedics, Xuanwu Hospital, Capital Medical UniversityDepartment of Orthopedics, Xuanwu Hospital, Capital Medical UniversityDepartment of Orthopedics, Xuanwu Hospital, Capital Medical UniversityDepartment of Orthopedics, Xuanwu Hospital, Capital Medical UniversityDepartment of Orthopedics, Xuanwu Hospital, Capital Medical UniversityAbstract Background Measurement of T1 slope (T1S) can be difficult due to the anatomical positioning of the shoulders. And thoracic inlet angle (TIA) was a morphological parameter and not changed by the position. We proposed a new parameter, TIA minus C0-7 angle (TIA-C07), to evaluate C2-7 SVA in order to overcome the T1S imperfection. Methods This was a retrospective radiological analysis of symptomatic subjects. The following cervical parameters were measured: Cervical lordosis angle (CL), C0-7 angle (C0-7), occiput-C2 lordosis angle (O-C2), C2-7 sagittal vertical axis (C2–7 SVA), TIA and TIA-C07. The Pearson correlation test was calculated, and the stepwise multiple regression analysis was conducted to determine the best predictor for C2-7 SVA. A paired sample t test was used to compare the predicted and measured C2-7 SVA. Results The mean age of 113 patients was 60.02 ± 9.67. The average O-C2, CL, C0-7, TIA, TIA-C07 and C2-C7 SVA was 29.24 ± 8.48°, 13.67 ± 11.22°, 42.91 ± 11.44°, 76.07 ± 9.54°, 33.16 ± 13.18° and 21.34 ± 11.42 mm. The predictive formula was founded: C2-7 SVA = 2.80 + 0.56 * (TIA—C07) (R = 0.645, R2 = 0.416). There was no statistical difference between the predicted and the measured C2-7 SVA (t = 0.085, P = 0.933). Conclusions TIA and C0-7 mismatch may significantly impact cervical alignment, and a greater T1A-C07 was related to a greater degree of C2-7 SVA. TIA-C07 may be a more important predictor for C2-7 SVA.https://doi.org/10.1186/s12891-022-05301-0Cervical sagittal alignmentThoracic inlet angleC2-7 SVAC0-7 angle |
| spellingShingle | Kai Yang Xiang-Yu Li Yu Wang Chao Kong Shi-Bao Lu Relationship between TIA minus C0-7 angle and C2-7 SVA: analysis of 113 symptomatic patients BMC Musculoskeletal Disorders Cervical sagittal alignment Thoracic inlet angle C2-7 SVA C0-7 angle |
| title | Relationship between TIA minus C0-7 angle and C2-7 SVA: analysis of 113 symptomatic patients |
| title_full | Relationship between TIA minus C0-7 angle and C2-7 SVA: analysis of 113 symptomatic patients |
| title_fullStr | Relationship between TIA minus C0-7 angle and C2-7 SVA: analysis of 113 symptomatic patients |
| title_full_unstemmed | Relationship between TIA minus C0-7 angle and C2-7 SVA: analysis of 113 symptomatic patients |
| title_short | Relationship between TIA minus C0-7 angle and C2-7 SVA: analysis of 113 symptomatic patients |
| title_sort | relationship between tia minus c0 7 angle and c2 7 sva analysis of 113 symptomatic patients |
| topic | Cervical sagittal alignment Thoracic inlet angle C2-7 SVA C0-7 angle |
| url | https://doi.org/10.1186/s12891-022-05301-0 |
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