A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis

Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centr...
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Autor*in:	Wen Yin [verfasserIn] Guohui Zheng [verfasserIn] Wei Zhang [verfasserIn] Yunlei Zhai [verfasserIn] Haijiang Li [verfasserIn] Lele Sun [verfasserIn] Kangkang Wang [verfasserIn] Jishi Jiang [verfasserIn] Zikai Hua [verfasserIn] Xilong Cui [verfasserIn] Haiyang Yu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2024

Schlagwörter:	Ankylosing spondylitis Kyphotic deformity Two-level pedicle subtraction osteotomy Abdominal changes, mathematical model

Übergeordnetes Werk:	In: BMC Surgery - BMC, 2003, 24(2024), 1, Seite 9
Übergeordnetes Werk:	volume:24 ; year:2024 ; number:1 ; pages:9

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1186/s12893-023-02285-z

Katalog-ID:	DOAJ096209003

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520			\|a Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. No significant difference exists between A-CR and P-CR via mathematical modeling (p < 0.05). No statistically significant difference existed between POVA and actual osteotomized vertebra angles (AOVA) (p < 0.05). A statistically significant difference was observed between preoperative and postoperative measurements of LL, SVA, and GK variables (p < 0.001). Conclusions The novel mathematical model was reliable in predicting the ac-AMSP in AS patients undergoing two-level PSO.
650		4	\|a Ankylosing spondylitis
650		4	\|a Kyphotic deformity
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650		4	\|a Abdominal changes, mathematical model
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allfields	10.1186/s12893-023-02285-z doi (DE-627)DOAJ096209003 (DE-599)DOAJe3a53a7fd01140738c8fdcfffaf8fea4 DE-627 ger DE-627 rakwb eng RD1-811 Wen Yin verfasserin aut A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. No significant difference exists between A-CR and P-CR via mathematical modeling (p < 0.05). No statistically significant difference existed between POVA and actual osteotomized vertebra angles (AOVA) (p < 0.05). A statistically significant difference was observed between preoperative and postoperative measurements of LL, SVA, and GK variables (p < 0.001). Conclusions The novel mathematical model was reliable in predicting the ac-AMSP in AS patients undergoing two-level PSO. Ankylosing spondylitis Kyphotic deformity Two-level pedicle subtraction osteotomy Abdominal changes, mathematical model Surgery Guohui Zheng verfasserin aut Wei Zhang verfasserin aut Yunlei Zhai verfasserin aut Haijiang Li verfasserin aut Lele Sun verfasserin aut Kangkang Wang verfasserin aut Jishi Jiang verfasserin aut Zikai Hua verfasserin aut Xilong Cui verfasserin aut Haiyang Yu verfasserin aut In BMC Surgery BMC, 2003 24(2024), 1, Seite 9 (DE-627)331018837 (DE-600)2050442-1 14712482 nnns volume:24 year:2024 number:1 pages:9 https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/article/e3a53a7fd01140738c8fdcfffaf8fea4 kostenfrei https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/toc/1471-2482 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 24 2024 1 9
spelling	10.1186/s12893-023-02285-z doi (DE-627)DOAJ096209003 (DE-599)DOAJe3a53a7fd01140738c8fdcfffaf8fea4 DE-627 ger DE-627 rakwb eng RD1-811 Wen Yin verfasserin aut A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. No significant difference exists between A-CR and P-CR via mathematical modeling (p < 0.05). No statistically significant difference existed between POVA and actual osteotomized vertebra angles (AOVA) (p < 0.05). A statistically significant difference was observed between preoperative and postoperative measurements of LL, SVA, and GK variables (p < 0.001). Conclusions The novel mathematical model was reliable in predicting the ac-AMSP in AS patients undergoing two-level PSO. Ankylosing spondylitis Kyphotic deformity Two-level pedicle subtraction osteotomy Abdominal changes, mathematical model Surgery Guohui Zheng verfasserin aut Wei Zhang verfasserin aut Yunlei Zhai verfasserin aut Haijiang Li verfasserin aut Lele Sun verfasserin aut Kangkang Wang verfasserin aut Jishi Jiang verfasserin aut Zikai Hua verfasserin aut Xilong Cui verfasserin aut Haiyang Yu verfasserin aut In BMC Surgery BMC, 2003 24(2024), 1, Seite 9 (DE-627)331018837 (DE-600)2050442-1 14712482 nnns volume:24 year:2024 number:1 pages:9 https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/article/e3a53a7fd01140738c8fdcfffaf8fea4 kostenfrei https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/toc/1471-2482 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 24 2024 1 9
allfields_unstemmed	10.1186/s12893-023-02285-z doi (DE-627)DOAJ096209003 (DE-599)DOAJe3a53a7fd01140738c8fdcfffaf8fea4 DE-627 ger DE-627 rakwb eng RD1-811 Wen Yin verfasserin aut A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. No significant difference exists between A-CR and P-CR via mathematical modeling (p < 0.05). No statistically significant difference existed between POVA and actual osteotomized vertebra angles (AOVA) (p < 0.05). A statistically significant difference was observed between preoperative and postoperative measurements of LL, SVA, and GK variables (p < 0.001). Conclusions The novel mathematical model was reliable in predicting the ac-AMSP in AS patients undergoing two-level PSO. Ankylosing spondylitis Kyphotic deformity Two-level pedicle subtraction osteotomy Abdominal changes, mathematical model Surgery Guohui Zheng verfasserin aut Wei Zhang verfasserin aut Yunlei Zhai verfasserin aut Haijiang Li verfasserin aut Lele Sun verfasserin aut Kangkang Wang verfasserin aut Jishi Jiang verfasserin aut Zikai Hua verfasserin aut Xilong Cui verfasserin aut Haiyang Yu verfasserin aut In BMC Surgery BMC, 2003 24(2024), 1, Seite 9 (DE-627)331018837 (DE-600)2050442-1 14712482 nnns volume:24 year:2024 number:1 pages:9 https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/article/e3a53a7fd01140738c8fdcfffaf8fea4 kostenfrei https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/toc/1471-2482 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 24 2024 1 9
allfieldsGer	10.1186/s12893-023-02285-z doi (DE-627)DOAJ096209003 (DE-599)DOAJe3a53a7fd01140738c8fdcfffaf8fea4 DE-627 ger DE-627 rakwb eng RD1-811 Wen Yin verfasserin aut A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. No significant difference exists between A-CR and P-CR via mathematical modeling (p < 0.05). No statistically significant difference existed between POVA and actual osteotomized vertebra angles (AOVA) (p < 0.05). A statistically significant difference was observed between preoperative and postoperative measurements of LL, SVA, and GK variables (p < 0.001). Conclusions The novel mathematical model was reliable in predicting the ac-AMSP in AS patients undergoing two-level PSO. Ankylosing spondylitis Kyphotic deformity Two-level pedicle subtraction osteotomy Abdominal changes, mathematical model Surgery Guohui Zheng verfasserin aut Wei Zhang verfasserin aut Yunlei Zhai verfasserin aut Haijiang Li verfasserin aut Lele Sun verfasserin aut Kangkang Wang verfasserin aut Jishi Jiang verfasserin aut Zikai Hua verfasserin aut Xilong Cui verfasserin aut Haiyang Yu verfasserin aut In BMC Surgery BMC, 2003 24(2024), 1, Seite 9 (DE-627)331018837 (DE-600)2050442-1 14712482 nnns volume:24 year:2024 number:1 pages:9 https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/article/e3a53a7fd01140738c8fdcfffaf8fea4 kostenfrei https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/toc/1471-2482 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 24 2024 1 9
allfieldsSound	10.1186/s12893-023-02285-z doi (DE-627)DOAJ096209003 (DE-599)DOAJe3a53a7fd01140738c8fdcfffaf8fea4 DE-627 ger DE-627 rakwb eng RD1-811 Wen Yin verfasserin aut A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. No significant difference exists between A-CR and P-CR via mathematical modeling (p < 0.05). No statistically significant difference existed between POVA and actual osteotomized vertebra angles (AOVA) (p < 0.05). A statistically significant difference was observed between preoperative and postoperative measurements of LL, SVA, and GK variables (p < 0.001). Conclusions The novel mathematical model was reliable in predicting the ac-AMSP in AS patients undergoing two-level PSO. Ankylosing spondylitis Kyphotic deformity Two-level pedicle subtraction osteotomy Abdominal changes, mathematical model Surgery Guohui Zheng verfasserin aut Wei Zhang verfasserin aut Yunlei Zhai verfasserin aut Haijiang Li verfasserin aut Lele Sun verfasserin aut Kangkang Wang verfasserin aut Jishi Jiang verfasserin aut Zikai Hua verfasserin aut Xilong Cui verfasserin aut Haiyang Yu verfasserin aut In BMC Surgery BMC, 2003 24(2024), 1, Seite 9 (DE-627)331018837 (DE-600)2050442-1 14712482 nnns volume:24 year:2024 number:1 pages:9 https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/article/e3a53a7fd01140738c8fdcfffaf8fea4 kostenfrei https://doi.org/10.1186/s12893-023-02285-z kostenfrei https://doaj.org/toc/1471-2482 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 24 2024 1 9
language	English
source	In BMC Surgery 24(2024), 1, Seite 9 volume:24 year:2024 number:1 pages:9
sourceStr	In BMC Surgery 24(2024), 1, Seite 9 volume:24 year:2024 number:1 pages:9
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Ankylosing spondylitis Kyphotic deformity Two-level pedicle subtraction osteotomy Abdominal changes, mathematical model Surgery
isfreeaccess_bool	true
container_title	BMC Surgery
authorswithroles_txt_mv	Wen Yin @@aut@@ Guohui Zheng @@aut@@ Wei Zhang @@aut@@ Yunlei Zhai @@aut@@ Haijiang Li @@aut@@ Lele Sun @@aut@@ Kangkang Wang @@aut@@ Jishi Jiang @@aut@@ Zikai Hua @@aut@@ Xilong Cui @@aut@@ Haiyang Yu @@aut@@
publishDateDaySort_date	2024-01-01T00:00:00Z
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Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. 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spellingShingle	Wen Yin misc RD1-811 misc Ankylosing spondylitis misc Kyphotic deformity misc Two-level pedicle subtraction osteotomy misc Abdominal changes, mathematical model misc Surgery A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis
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issn	14712482
topic_title	RD1-811 A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis Ankylosing spondylitis Kyphotic deformity Two-level pedicle subtraction osteotomy Abdominal changes, mathematical model
topic	misc RD1-811 misc Ankylosing spondylitis misc Kyphotic deformity misc Two-level pedicle subtraction osteotomy misc Abdominal changes, mathematical model misc Surgery
topic_unstemmed	misc RD1-811 misc Ankylosing spondylitis misc Kyphotic deformity misc Two-level pedicle subtraction osteotomy misc Abdominal changes, mathematical model misc Surgery
topic_browse	misc RD1-811 misc Ankylosing spondylitis misc Kyphotic deformity misc Two-level pedicle subtraction osteotomy misc Abdominal changes, mathematical model misc Surgery
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title	A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis
ctrlnum	(DE-627)DOAJ096209003 (DE-599)DOAJe3a53a7fd01140738c8fdcfffaf8fea4
title_full	A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis
author_sort	Wen Yin
journal	BMC Surgery
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author_browse	Wen Yin Guohui Zheng Wei Zhang Yunlei Zhai Haijiang Li Lele Sun Kangkang Wang Jishi Jiang Zikai Hua Xilong Cui Haiyang Yu
container_volume	24
class	RD1-811
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author-letter	Wen Yin
doi_str_mv	10.1186/s12893-023-02285-z
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title_sort	new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis
callnumber	RD1-811
title_auth	A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis
abstract	Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. No significant difference exists between A-CR and P-CR via mathematical modeling (p < 0.05). No statistically significant difference existed between POVA and actual osteotomized vertebra angles (AOVA) (p < 0.05). A statistically significant difference was observed between preoperative and postoperative measurements of LL, SVA, and GK variables (p < 0.001). Conclusions The novel mathematical model was reliable in predicting the ac-AMSP in AS patients undergoing two-level PSO.
abstractGer	Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. No significant difference exists between A-CR and P-CR via mathematical modeling (p < 0.05). No statistically significant difference existed between POVA and actual osteotomized vertebra angles (AOVA) (p < 0.05). A statistically significant difference was observed between preoperative and postoperative measurements of LL, SVA, and GK variables (p < 0.001). Conclusions The novel mathematical model was reliable in predicting the ac-AMSP in AS patients undergoing two-level PSO.
abstract_unstemmed	Abstract Background The purpose of this study was to create a mathematical model to precalculate the acreage change in the abdominal median sagittal plane (ac-AMSP) of patients with ankylosing spondylitis (AS) for whom two-level pedicle subtraction osteotomy (PSO) was planned. Methods A single-centre retrospective review of prospectively collected data was conducted among 11 adults with AS. Acreage of the abdominal median sagittal plane (a-AMSP) was performed. The distances and angles between the osteotomy apexes, anterosuperior edge of T12, xiphoid process, superior edge of the pubis, and anterosuperior corner of the sacrum were measured on preoperative thoracolumbar computed tomography. A mathematical model was created using basic trigonometric functions in accordance with the abdominal parameters. Planned osteotomized vertebra angles (POVAs) were substituted into the mathematical model, and the predictive ac-AMSP (P-AC) was obtained. A paired sample t test was performed to determine the differences between the P-AC and actual ac-AMSP (A-AC) and between the predictive acreage change rate (P-CR) and actual acreage change rate (A-CR). Results The mean age and GK were 44.4 ± 8.99 years and 102.9° ± 19.17°, respectively. No significant difference exists between A-CR and P-CR via mathematical modeling (p < 0.05). No statistically significant difference existed between POVA and actual osteotomized vertebra angles (AOVA) (p < 0.05). A statistically significant difference was observed between preoperative and postoperative measurements of LL, SVA, and GK variables (p < 0.001). Conclusions The novel mathematical model was reliable in predicting the ac-AMSP in AS patients undergoing two-level PSO.
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title_short	A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis
url	https://doi.org/10.1186/s12893-023-02285-z https://doaj.org/article/e3a53a7fd01140738c8fdcfffaf8fea4 https://doaj.org/toc/1471-2482
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author2	Guohui Zheng Wei Zhang Yunlei Zhai Haijiang Li Lele Sun Kangkang Wang Jishi Jiang Zikai Hua Xilong Cui Haiyang Yu
author2Str	Guohui Zheng Wei Zhang Yunlei Zhai Haijiang Li Lele Sun Kangkang Wang Jishi Jiang Zikai Hua Xilong Cui Haiyang Yu
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up_date	2024-07-03T18:54:04.395Z
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A new mathematical model for evaluating surface changes in the mid-abdominal sagittal plane after two-level pedicle reduction osteotomy in patients with ankylosing spondylitis

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