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Han S, Lee HD, Jang HD, Suh DH, Han K, Hong JY. Lumbar radiculopathy and fracture risk: A Korean nationwide population-based cohort study. Bone 2024; 179:116981. [PMID: 38008302 DOI: 10.1016/j.bone.2023.116981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 11/06/2023] [Accepted: 11/21/2023] [Indexed: 11/28/2023]
Abstract
INTRODUCTION Lumbar radiculopathy is a common disease with a high economic burden, and fractures in adults are a significant public health problem. However, studies of the relationship between lumbar radiculopathy and fractures are scarce. We investigated the fracture risk in patients with lumbar radiculopathy. METHODS This nationwide retrospective cohort study identified 815,101 patients with lumbar radiculopathy and randomly matched individuals without lumbar radiculopathy (1:1) who were included in the Korean National Health Insurance System in 2012. Cox proportional hazards regression analyses were performed to calculate the hazard ratio (HR) for fracture risk in patients with lumbar radiculopathy. RESULTS The study included 301,347 patients with lumbar radiculopathy and matched 289,618 individuals without lumbar radiculopathy. Compared to individuals without lumbar radiculopathy, patients with lumbar radiculopathy had a 27 % increased fracture risk (adjusted HR = 1.27, 95 % confidence interval = 1.24-1.31). The Kaplan-Meier plot showed a significantly higher fracture incidence in patients with lumbar radiculopathy than in individuals without lumbar radiculopathy at all times. CONCLUSION Lumbar radiculopathy is significantly associated with fracture risk.
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Affiliation(s)
- Sangsoo Han
- Department of Emergency Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Bucheon 14584, Republic of Korea
| | - Han-Dong Lee
- Department of Orthopaedic Surgery, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Hae-Dong Jang
- Department of Orthopaedic Surgery, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Bucheon 14584, Republic of Korea
| | - Dong Hun Suh
- Department of Orthopedics, Korea University Hospital, Ansan, 123, Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-do 15355, Republic of Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
| | - Jae-Young Hong
- Department of Orthopedics, Korea University Hospital, Ansan, 123, Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-do 15355, Republic of Korea.
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Cho ST, Shin DE, Kim JW, Yoon S, Ii Lee H, Lee S. Prediction of Progressive Collapse in Osteoporotic Vertebral Fractures Using Conventional Statistics and Machine Learning. Spine (Phila Pa 1976) 2023; 48:1535-1543. [PMID: 37235792 DOI: 10.1097/brs.0000000000004598] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 12/29/2022] [Indexed: 05/28/2023]
Abstract
STUDY DESIGN Retrospective cohort study. OBJECTIVE The objective of this study was to determine prognostic factors for the progression of osteoporotic vertebral fracture (OVF) following conservative treatment. SUMMARY OF BACKGROUND DATA Few studies have evaluated factors associated with progressive collapse (PC) of OVFs. Furthermore, machine learning has not been applied in this context. MATERIALS AND METHODS The study involved the PC and non-PC groups based on a compression rate of 15%. Clinical data, fracture site, OVF shape, Cobb angle, and anterior wedge angle of the fractured vertebra were evaluated. The presence of intravertebral cleft and the type of bone marrow signal change were analyzed using magnetic resonance imaging. Multivariate logistic regression analysis was performed to identify prognostic factors. In machine learning methods, decision tree and random forest models were used. RESULTS There were no significant differences in clinical data between the groups. The proportion of fracture shape ( P <0.001) and bone marrow signal change ( P =0.01) were significantly different between the groups. Moderate wedge shape was frequently observed in the non-PC group (31.7%), whereas the normative shape was most common in the PC group (54.7%). The Cobb angle and anterior wedge angle at diagnosis of OVFs were higher in the non-PC group (13.2±10.9, P =0.001; 14.3±6.6, P <0.001) than in the PC group (10.3±11.8, 10.4±5.5). The bone marrow signal change at the superior aspect of the vertebra was more frequently found in the PC group (42.5%) than in the non-PC group (34.9%). Machine learning revealed that vertebral shape at initial diagnosis was a main predictor of progressive vertebral collapse. CONCLUSION The initial shape of the vertebra and bone edema pattern on magnetic resonance imaging appear to be useful prognostic factors for progressive collapse in osteoporotic vertebral fractures.
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Affiliation(s)
- Sung Tan Cho
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dong-Eun Shin
- Department of Orthopaedic Surgery, CHA University School of Medicine, Seongnam-si, Gyeonggi-do Province, Republic of Korea
| | - Jin-Woo Kim
- Department of Orthopaedic Surgery, Nowon Eulji Medical Center, Eulji University, Seoul, Korea
| | - Siyeoung Yoon
- Department of Orthopaedic Surgery, CHA University School of Medicine, Seongnam-si, Gyeonggi-do Province, Republic of Korea
| | - Hyun Ii Lee
- Department of Orthopedic Surgery, Ilsan Paik Hospital, Inje University, Goyang-si, Gyeonggi-do Province, Republic of Korea
| | - Soonchul Lee
- Department of Orthopaedic Surgery, CHA University School of Medicine, Seongnam-si, Gyeonggi-do Province, Republic of Korea
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Park SM, Park J, Han S, Jang HD, Hong JY, Han K, Kim HJ, Yeom JS. Underweight and risk of fractures in adults over 40 years using the nationwide claims database. Sci Rep 2023; 13:8013. [PMID: 37198201 PMCID: PMC10192329 DOI: 10.1038/s41598-023-34828-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 05/09/2023] [Indexed: 05/19/2023] Open
Abstract
We aimed to investigate how underweight affects the incidence of fractures, as well as the influence of cumulative, longitudinal periods of low body mass index (BMI) and changes in body weight on fracture development. Data on adults aged 40-year and over who had three health screenings between January 1, 2007, and December 31, 2009 were used to determine the incidence of new fractures. The hazard ratios (HRs) for new fractures depending on BMI, total cumulative number of underweight, and weight change over time were calculated using Cox proportional hazard analysis. In this study, 15,955 (2.8%) of the 561,779 adults were diagnosed with fractures more than once over three health examinations. The fully adjusted HR for fractures in underweight individuals was 1.173 (95% Confidence interval [CI] 1.093-1.259). Underweight individuals diagnosed only once, twice, or three times had an adjusted HR of 1.227 (95%CI 1.130-1.332), 1.174 (95%CI 1.045-1.319), and 1.255 (95%CI 1.143-1.379), respectively. Although the adjusted HR was higher in adults who consistently had underweight (HR; 1.250 [95%CI 1.146-1.363]), those with underweight had an increased risk of fractures regardless of weight change (HR; 1.171 [95%CI 1.045-1.312], and 1.203[95%CI 1.075-1.346]). Underweight is a risk factor for fractures in adults over the age of 40 years, even if they returned to normal weight.
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Affiliation(s)
- Sang-Min Park
- Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jiwon Park
- Department of Orthopaedic Surgery, Korea University Ansan Hospital, Ansan, 123, Jeokgeum-Ro, Danwon-Gu, Ansan-Si, Gyeonggi-Do, 15355, Republic of Korea
| | - Sangsoo Han
- Department of Emergency Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru-Ro, Bucheon, 14584, Republic of Korea
| | - Hae-Dong Jang
- Department of Orthopaedic Surgery, Soonchunhyang University Bucheon Hospital, 170 Jomaru-Ro, Bucheon, 14584, Republic of Korea
| | - Jae-Young Hong
- Department of Orthopaedic Surgery, Korea University Ansan Hospital, Ansan, 123, Jeokgeum-Ro, Danwon-Gu, Ansan-Si, Gyeonggi-Do, 15355, Republic of Korea.
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, 369 Sangdo-Ro, Dongjak-Gu, Seoul, 06978, Republic of Korea
| | - Ho-Joong Kim
- Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jin S Yeom
- Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Korea
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Park SM, Park J, Han S, Jang HD, Hong JY, Han K, Kim HJ, Yeom JS. The Impact of Persistent Low Weight Status on the Occurrence of Vertebral Fractures: A Nationwide Population-Based Cohort Study. J Korean Med Sci 2023; 38:e48. [PMID: 36808543 PMCID: PMC9941015 DOI: 10.3346/jkms.2023.38.e48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/30/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Although, being underweight is commonly associated with osteoporosis and sarcopenia, its association with vertebral fractures (VFs), is less well researched. We investigated the influence of cumulative, chronic periods of low weight and changes in body weight on VF development. METHODS We used a nationwide, population-based database with data on people (> 40 years) who attended three health screenings between January 1, 2007, and December 31, 2009 to assess the incidence of new VFs. Cox proportional hazard analyses were used to establish the hazard ratios (HRs) for new VFs based on the degree of body mass index (BMI), the cumulative numbers of underweight participants, and temporal change in weight. RESULTS Of the 561,779 individuals in this analysis, 5,354 (1.0%) people were diagnosed three times, 3,672 (0.7%) were diagnosed twice, and 6,929 (1.2%) were diagnosed once. The fully adjusted HR for VFs in underweight individuals was 1.213. Underweight individuals diagnosed only once, twice, or three times had an adjusted HR of 0.904, 1.443, and 1.256, respectively. Although the adjusted HR was higher in adults who were consistently underweight, there was no difference in those who experienced a temporal change in body weight. BMI, age, sex, and household income were significantly associated with VF incidence. CONCLUSION Low weight is a risk factor for VFs in the general population. Given the significant correlation between cumulative periods of low weight and the risk of VFs, it is necessary to treat underweight patients before a VF to prevent its development and other osteoporotic fractures.
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Affiliation(s)
- Sang-Min Park
- Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jiwon Park
- Department of Orthopedic Surgery, Korea University Ansan Hospital, Ansan, Korea
| | - Sangsoo Han
- Department of Emergency Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Hae-Dong Jang
- Department of Orthopaedic Surgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jae-Young Hong
- Department of Orthopedic Surgery, Korea University Ansan Hospital, Ansan, Korea.
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Korea
| | - Ho-Joong Kim
- Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jin S Yeom
- Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Korea
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Yu MH, Hong N, Lee S, Kim HY, Park HS, Park SM, Lee YK, Kim TY, Ha YC, Rhee Y, Koo KH. Operational Definition Identifying Osteoporotic Vertebral Fractures in the Claims Database. J Korean Med Sci 2022; 37:e249. [PMID: 35971763 PMCID: PMC9424695 DOI: 10.3346/jkms.2022.37.e249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 07/07/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND We analyzed the International Classification of Diseases, 10th edition (ICD-10) diagnostic codes, procedure codes, and radiographic image codes for vertebral fracture (VF) used in the database of Health Insurance Review and Assessment Service (HIRA) of Korea to establish a validated operational definition for identifying patients with osteoporotic VF in claims data. METHODS We developed three operational definitions for detecting VFs using 9 diagnostic codes, 5 procedure codes and 4 imaging codes. Medical records and radiographs of 2,819 patients, who had primary and subordinated codes of VF between January 2016 and December 2016 at two institutions, were reviewed to detect true vertebral fractures. We evaluated the sensitivity and positive predictive value (PPV) of the operational definition in detecting true osteoporotic VF and obtained the receiver operating characteristic (ROC) curve. RESULTS Among the 2,819 patients who had primary or secondary diagnosis codes for VF, 995 patients satisfied at least one of the criteria for the operational definition of osteoporotic VF. Of these patients, 594 were judged as having true fractures based on medical records and radiographic examinations. The sensitivity and PPV were 62.5 (95% confidence interval [CI], 59.4-65.6) and 59.7(95% CI, 56.6-62.8) respectively. In the receiver operating characteristic analysis, area under the curve (AUC) was 0.706 (95% CI, 0.688-0.724). CONCLUSION Our findings demonstrate the validity of our operational definitions to identify VFs more accurately using claims data. This algorithm to identify VF is likely to be useful in future studies for diagnosing osteoporotic VF.
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Affiliation(s)
- Min Heui Yu
- Department of Internal Medicine, Endocrine Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Namki Hong
- Department of Internal Medicine, Endocrine Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Seunghyun Lee
- Department of Internal Medicine, Yonsei Wonju College of Medicine, Wonju, Korea
| | - Ha-Young Kim
- Department of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea
| | - Hye-Sun Park
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sang-Min Park
- Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Korea.
| | - Young-Kyun Lee
- Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Korea.
| | - Tae-Young Kim
- Department of Orthopaedic Surgery, School of Medicine, Konkuk University, Seoul, Korea
| | - Yong-Chan Ha
- Department of Orthopaedic Surgery, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Yumie Rhee
- Department of Internal Medicine, Endocrine Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung-Hoi Koo
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital and Kay Joint Center at Cheil Orthopaedic Hospital, Seoul, Korea
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