PMID- 32471454 OWN - NLM STAT- MEDLINE DCOM- 20210324 LR - 20210324 IS - 1749-799X (Electronic) IS - 1749-799X (Linking) VI - 15 IP - 1 DP - 2020 May 29 TI - The influence of long-term shoulder loading on sagittal spino-pelvic morphology: a population-based retrospective study of Chinese farmers from radiology. PG - 196 LID - 10.1186/s13018-020-01698-3 [doi] LID - 196 AB - BACKGROUND: To investigate associations between long-term shoulder loading and sagittal spino-pelvic morphology in Chinese farmers from radiology evidences. METHODS: We retrospectively analyzed 463 back pain patients who attended outpatient and inpatient departments of two hospitals from January 2016 to December 2018, and who had long, standing lateral X-rays according to inclusion and exclusion criteria. One hundred eighty-four of them were farmers with a long history of heavy shoulder loading for over 20 years in their young age, while others were office workers with no reported long-term shoulder loading history. The following parameters were measured by three researchers independently and then analyzed statistically: thoracic kyphosis (TK), lumbar lordosis (LL), thoracolumbar kyphosis (TLK), T9 sagittal offset (T9SO), T1 sagittal offset (T1SO), sacral slope (SS), pelvic incidence (PI), pelvic tilt (PT), C7 tilt (C7T), spino-pelvic angle (SSA), and sagittal vertical axis (SVA). RESULTS: The "Loading group" included 86 males and 98 females with average age 73.3 (SD 8.3) years, whereas the "Non-loading group" included 126 males and 153 females with average age 63.7 (SD 14.1) years. Age was significantly higher in the loading group (p < 0.001), but gender, height, weight, BMI, and BMD were not significantly different (p > 0.05). The following spino-pelvic parameters were significantly greater (p < 0.05) in the loading group: TK (mean 39.1 degrees vs 32.8 degrees ), TLK (25.8 degrees vs 10.1 degrees ), and T9SO (12.2 degrees vs 10.1 degrees ). Other values were not significantly different between the two groups (p > 0.05). CONCLUSION: Long-term shoulder loading in youth is a risk factor for pathological thoracic kyphosis especially in the lower thoracic spinal segments when farmers getting older. FAU - Zhang, Xuyang AU - Zhang X AD - Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, No. 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. AD - Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. FAU - Yang, Wei AU - Yang W AD - Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, No. 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. AD - Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. FAU - Zheng, Zeyu AU - Zheng Z AD - Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, No. 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. AD - Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. FAU - Wang, Jiasheng AU - Wang J AD - Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, No. 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. AD - Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. FAU - Huang, Bao AU - Huang B AD - Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, No. 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. AD - Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. FAU - Fan, Shunwu AU - Fan S AD - Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, No. 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. AD - Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. FAU - Wang, Xianjun AU - Wang X AD - Department of Orthopaedics, Linhai Second People's Hospital, 198 Dubei Road, Duqiao, Linhai, Taizhou, 317016, People's Republic of China. zhaohy778@163.com. FAU - Zhao, Fengdong AU - Zhao F AUID- ORCID: 0000-0002-2945-8707 AD - Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, No. 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. zhaofengdong@zju.edu.cn. AD - Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3, Qingchun Road East, Hangzhou, 310016, People's Republic of China. zhaofengdong@zju.edu.cn. LA - eng GR - 2016ZDB006/Medical and Health Research Project of Zhejiang Province/ GR - 81672208/National Natural Science Foundation of China/ GR - 81871796/National Natural Science Foundation of China/ PT - Journal Article DEP - 20200529 PL - England TA - J Orthop Surg Res JT - Journal of orthopaedic surgery and research JID - 101265112 SB - IM MH - Aged MH - Agricultural Workers' Diseases/diagnostic imaging/etiology MH - China MH - *Farmers MH - Female MH - Humans MH - Kyphosis/diagnostic imaging/etiology MH - Lordosis/diagnostic imaging/etiology MH - Male MH - Middle Aged MH - Pelvis/*anatomy & histology/diagnostic imaging MH - Radiography MH - Retrospective Studies MH - Risk Factors MH - Shoulder/anatomy & histology/diagnostic imaging/*physiology MH - Spine/*anatomy & histology/diagnostic imaging MH - *Weight-Bearing PMC - PMC7257182 OTO - NOTNLM OT - Kyphosis OT - Shoulder loading OT - Spine OT - Weight bear OT - X-ray COIS- All authors state that we have no competing of interest. EDAT- 2020/05/31 06:00 MHDA- 2021/03/25 06:00 PMCR- 2020/05/29 CRDT- 2020/05/31 06:00 PHST- 2019/09/26 00:00 [received] PHST- 2020/05/06 00:00 [accepted] PHST- 2020/05/31 06:00 [entrez] PHST- 2020/05/31 06:00 [pubmed] PHST- 2021/03/25 06:00 [medline] PHST- 2020/05/29 00:00 [pmc-release] AID - 10.1186/s13018-020-01698-3 [pii] AID - 1698 [pii] AID - 10.1186/s13018-020-01698-3 [doi] PST - epublish SO - J Orthop Surg Res. 2020 May 29;15(1):196. doi: 10.1186/s13018-020-01698-3.