Risk Factors For Vertebral Fractures Research Articles

Risk factor analysis of vertebral fractures requiring surgery in patients with ankylosing spondylitis.

This study aimed to determine the risk factors for vertebral fractures requiring surgery in patients with ankylosing spondylitis (AS). We included 60 patients with AS diagnosed by using the modified New York criteria and who were treated in our department from April 2004 to March 2019. We evaluated age, sex, disease duration, C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), ankylosed sacroiliac joint, bamboo spine, number of ankylosed vertebrae, and treatment (nonsteroidal antiinflammatory drugs (NSAIDs)), prednisolone (PSL), conventional synthetic disease-modifying antirheumatic drugs (csDMARDs), biological disease-modifying antirheumatic drugs (bDMARDs), spine surgery for vertebral fracture) at the final follow-up of the nonsurgical group and the preoperative follow-up of the surgical group. At the final follow-up, the mean age was 49 years, 46 patients (75%) were male, and the mean disease duration was 27 years. Additionally, 8 (13.3%) and 43 patients (71%) underwent surgical and medical treatments, respectively. The group of surgery for vertebral fracture had significantly higher CRP levels, which was also significantly associated with vertebral fracture surgery by multivariate analysis. CRP was identified as a risk factor for vertebral fractures requiring surgery. Control of systemic inflammation in patients with AS may reduce the risk of vertebral fractures requiring surgery.

Low Hounsfield unit values on computed tomography as a potential predictor of vertebral fracture in patients with rheumatoid arthritis: The KURAMA cohort study.

Hounsfield units (HU) measured using computed tomography (CT) have gained considerable attention for the detection of osteoporosis. This study aimed to investigate whether opportunistic CT could predict vertebral fractures in patients with rheumatoid arthritis (RA). A total of 233 patients with RA who underwent chest CT were included in this study. The HU values of the anterior 1/3 of the vertebral bodies based on the sagittal plane at T11-L2 after reconstruction were measured. The incidence of vertebral fractures was investigated with respect to the HU value. Vertebral fractures were identified in 32 patients during a mean follow-up period of 3.8 years. In patients who experienced vertebral fractures within 2 years of CT imaging, the HU values of the vertebral bodies (T11-L2) were lower than those in patients who did not experience fractures. Receiver operating characteristic curve analysis identified that a T11 HU value of <125 was a risk factor for vertebral fracture within 2 years. Multivariate analysis showed that a T11 HU value of <125 and the existence of prevalent vertebral fractures were significant risk factors for fracture. HU measurements of the anterior 1/3 of the vertebral body are a potential predictor for vertebral fractures in patients with RA.

Weight changes after smoking cessation affect the risk of vertebral fractures: a nationwide population-based cohort study

BACKGROUND CONTEXTSmoking cessation reduces the risk of vertebral and hip fractures but usually increases body weight. Since underweight is known as a risk factor for vertebral fractures, smoking cessation is considered to have a protective effect on vertebral fractures. However, the actual effect of weight change after smoking cessation on the risk of vertebral fractures remains uncertain. PURPPOSEThis study aimed to assess the risk of vertebral fractures among individuals who reported smoking cessation with a specific focus on changes in body weight. STUDY DESIGNRetrospective cohort study based on nationwide health insurance database. PATIENT SAMPLEParticipants were from nationwide biennial health checkups between 2007 and 2009 conducted by the Korean National Health Insurance Service. Participants were followed up from 2010 to 2018 to find incidence of newly developed vertebral fractures. OUTCOME MEASURESThe incidence rate was defined as the incidence rate (IR) per 1,000 person-years (PY). Cox proportional regression analysis was used to analyze the risk of vertebral fracture to determine the hazard ratio (HR) associated with the incidence of vertebral fractures based on smoking status and weight changes. METHODSBased on their self-reported questionnaires, the participants were classified into three groups: current smokers, quitters, and nonsmokers. The quitter was defined as an individual who were smokers in 2007 and ceased smoking in 2009. Individuals with smoking cessation were categorized according to the weight change between baseline and 2 years prior: weight maintenance (−5∼5 % of weight change), weight loss (<−5 % of weight change), and weight gain (>5 % of weight change). We used Cox proportional hazards analysis to determine the hazard ratio (HR) associated with the incidence of vertebral fractures based on smoking status and temporal weight change over 2 years. RESULTSThis study evaluated 913,805 eligible participants, of whom 672,858 were classified as nonsmokers, 34,143 as quitters, and 206,804 as current smokers. Among quitters, 2,372 (6.9%) individuals had weight loss, and 7,816 (22.9%) had weight gain over 2 years. About 23,952 (70.2%) individuals maintained their weight over 2 years. The overall risk of vertebral fractures was significantly higher in quitters (adjusted HR [aHR]=1.110, 95% confidence interval [CI] 1.013-1–216) than in nonsmokers, but it was lower than in current smokers (aHR=1.197, 95%CI 1.143–1.253), regardless of weight change after smoking cessation. However, individuals who experienced weight loss after smoking cessation exhibited a notably higher risk of vertebral fractures than current smokers (aHR=1.321, 95%CI 1.004–1.461). In the female population, weight gain after smoking cessation was associated with a higher risk of vertebral fractures (aHR = 1.470, 95%CI 1.002–2.587) than in current female smokers. CONCLUSIONSMaintaining weight after smoking cessation may mitigate the risk of vertebral fractures. Weight loss after smoking cessation adversely affects the protective effects of smoking cessation on vertebral fractures in the general population.

Prevalence, incidence of and risk factors for vertebral fracture in the community: the Vietnam Osteoporosis Study

The epidemiology of vertebral fractures (VF) in underrepresented populations is not well-documented. This cohort study was part of a longitudinal osteoporosis research project with the aim of determining the prevalence, incidence, and risk factors for VF. 401 individuals (155 men) aged 50 years and older without a clinical diagnosis of VF were took radiographs at baseline and 2 years later. VF were ascertained using the Genant's semi-quantitative method. Bone mineral density (BMD) of femoral neck and lumbar spine were measured by dual-energy X-ray absorptiometry (Hologic Inc). The association between VF and risk factors was analyzed by the multiple logistic regression. The 95% confidence interval for prevalence and incidence was estimated by exact Poisson test. At baseline, the prevalence of VF was 12.2% (n = 49, 95% CI 9.0–16.2%) and increased with advancing age with one-fifth of those aged 70 and older having a VF. During the follow-up period, we observed 6 new VF, making the incidence of 6.6/1000 person-years (n = 6, 95% CI 2.4–14.3). The risk of prevalent VF was associated with male gender (OR: 2.67; 95% CI 1.28–5.87) and T-score at the femoral neck (OR per one SD decrease: 1.1; 1.03–1.17). These data indicate that VF is common among adults, and that lower femoral neck BMD was a risk factor for VF.

Conventional X-rays in the diagnosis and follow-up of vertebral fractures in patients with acromegaly: a real-life study.

To explore the role of conventional X-ray imaging in detecting vertebral fractures (VFs) in patients with acromegaly, both at diagnosis of disease and at the last clinical visit. The risk factors for VFs were also evaluated. A retrospective cohort study was conducted on 60 consecutive patients with acromegaly, in a tertiary referral centre. Thoracolumbar spine radiography (X-spine) was performed at the last clinical visit during the follow-up in order to detect VFs. Routine chest radiograph, performed as a part of the general evaluation at diagnosis of acromegaly, were retrospectively analysed to screen for baseline VFs. At diagnosis of acromegaly, chest X-ray revealed that 10 (17%) patients had VFs. Of the 50 patients without VFs at diagnosis of acromegaly, 33 (66%) remained unfractured at the last clinical visit (median [IQR] time, 144 [96-192] months after the diagnosis of acromegaly), whereas 17 (34%) had VFs. Overall, 22 patients (37%) had novel VFs detected on X-spine including five patients with previous VFs. Risk factor for incident VFs was the presence of hypogonadism at diagnosis of acromegaly (p = 0.016). In acromegaly patients, conventional X-rays can detect vertebral fractures early at diagnosis of acromegaly. They can also reveal incident VFs, which may occur several years later even in patients without VFs at diagnosis, above all in relation to hypogonadism.

SLICC-Frailty Index and Its Association with Low Bone Mineral Density and Vertebral Fractures in Women with Systemic Lupus Erythematosus.

The Systemic Lupus International Clinics (SLICC)-Frailty Index (FI) is associated with adverse outcomes in systemic lupus erythematosus (SLE). However, to our knowledge, its association with bone mineral density (BMD) and vertebral fractures (VF), has not been investigated using a standardized methods. Our aim was to evaluate the relationship between frailty assessed by SLICC-FI, and BMD and VF in Mestizo women with SLE. Adult women were included in this cross-sectional study. Information concerning the risk factors for VF and BMD in the lumbar spine and total hip was acquired. SLICC-FI was assessed at baseline. A semi-quantitative method was utilized to evaluate the prevalence of VF on lateral thoracolumbar radiographs. Univariate and multivariate regression analyses were performed adjusting for age, body mass index (BMI), SLE duration, cumulative glucocorticoid dose, bisphosphonate use, and BMD measurements. We included 202 women with SLE (mean age [SD] = 43.3 [13.6] years). The mean (SD) SLICC-FI value was 0.14 (0.09). Eleven (5.4%) patients were categorized as robust, 62 (30.7%) as relatively less fit, 84 (41.6%) as least fit, and 45 (22.3%) as frail. Both univariate and multivariate models showed associations between frailty (defined as SLICC-FI > 0.21) and prevalent VF in the entire population (OR 5.76, 95% CI 2.53-13.12; P < 0.001) and in the premenopausal group (OR 4.29, 95% CI; P = 0.047). We also found an association between the SLICC-FI and low BMD. In conclusion, frailty assessed by SLICC-FI might be associated with VF and low BMD in mestizo females with SLE.

Prevalence of and risk factors for vertebral fracture and low bone mineral density among Peruvian women aging with HIV.

Studies have shown that patients with HIV are at increased risk for bone loss and fracture due to a combination of host, viral, and antiretroviral therapy (ART)-related factors. We aimed to explore the prevalence of vertebral fracture (VF) and low bone mineral density (BMD) among women aging with HIV in Peru and identify risk factors for osteoporosis and fracture in this population. We enrolled women living with and without HIV aged ≥40 years between 2019 and 2020. Participants completed a survey and obtained dual X-ray absorptiometry (DXA) test to assess BMD at the lumbar spine (LS), femoral neck (FN), and total hip (TH). A subset of patients also obtained lateral thoracolumbar X-rays. Presence of VF was determined using the Genant semiquantitative method. Regression analyses were used to model associations between key risk factors and BMD. 104 women living with HIV and 212 women living without HIV were enrolled with a mean age of 52.4±8.2 and 56.4±8.8 years (p < 0.001). Among postmenopausal women (257/316, 81.3%), 26.3% of women living with HIV and 25.9% of those without HIV had osteoporosis. Among the 88 women living with HIV and 178 women living without HIV who obtained thoracolumbar X-rays, 12.5% and 6.2%, respectively, had at least one VF. Based on DXA and the FRAX score, 22/104 women living with HIV met criteria for osteoporosis treatment according to national guidelines; however, none were on treatment. Propensity score matching revealed that women living with HIV had 0.032 g/cm2 lower FN BMD (p = 0.012) and 0.034 g/cm2 lower TH BMD (p = 0.041) compared to women without HIV. In this study, women living with HIV on long-standing ART had increased VF prevalence compared to the slightly older group of women without HIV. Age and BMI were independent predictors for BMD at the lumbar spine, hip, and femoral neck among women living with HIV, and there was a treatment gap among women who met criteria for osteoporosis treatment. Larger studies are needed in this region to identify individuals at risk for fracture and to inform prevention guidelines.

Underweight as a risk factor for vertebral fractures in the South Korean population

BACKGROUND CONTEXTBeing underweight is a known risk factor for osteoporosis and sarcopenia that is strongly associated with vertebral fractures, particularly in the elderly. Being underweight can accelerate bone loss, contribute to impaired coordination, and increase fall risk in the elderly and the general population. PURPOSEThis study aimed to identify the degree of underweight as a risk factor for vertebral fractures in the South Korean population. STUDY DESIGNRetrospective cohort study based on national health insurance database. PATIENT SAMPLEParticipants were included from nationwide regular health check-ups conducted by the Korean National Health Insurance Service in 2009. Participants were followed up from 2010 to 2018 to identify the incidence of newly developed fractures. OUTCOME MEASURESThe incidence rate (IR) was defined as the incident per 1,000 person-years (PY). Vertebral fracture development risk was analyzed using Cox proportional regression analysis. Subgroup analysis was performed based on several factors, including age, sex, smoking status, alcohol consumption, physical activity, and household income. METHODSBased on body mass index, the study population was categorized into normal weight (18.50–22.99 kg/m2), mild underweight (17.50–18.49 kg/m2), moderate underweight (16.50–17.49 kg/m2), and severe underweight (<16.50 kg/m2) groups. Cox proportional hazards analyses were performed to calculate the hazard ratios for vertebral fractures based on the degree of underweight with respect to normal weight to identify the associated risk. RESULTSThis study evaluated 962,533 eligible participants, of whom 907,484 were classified as normal weight, 36,283 as mild underweight, 13,071 as moderate underweight, and 5,695 as severe underweight. The adjusted hazard ratio of vertebral fractures increased as the degree of underweight increased. Severe underweight was associated with a higher likelihood of vertebral fracture. The adjusted hazard ratio was 1.11 (95% confidence interval [CI], 1.04–1.17) in the mild underweight group, 1.15 (1.06–1.25) in the moderate underweight group, and 1.26 (1.14–1.40) in the severe underweight group when compared with the normal weight group. CONCLUSIONSUnderweight is a risk factor for vertebral fractures in the general population. Furthermore, severe underweight was associated with a higher risk of vertebral fractures, even after adjustment for other factors. Clinicians could provide real-world evidence that being underweight carries the risk of vertebral fractures.

Comparison of predictive value of FRAX, trabecular bone score, and bone mineral density for vertebral fractures in systemic sclerosis: A cross-sectional study

Assessing fracture risk is important for managing patients with systemic sclerosis (SSc). Vertebral fracture (VF) is the most common fracture and is associated with future VF and non-VF. We aimed to evaluate the predictive value of FRAX, trabecular bone score (TBS), and bone mineral density (BMD) for VFs, compared to rheumatoid arthritis (RA) patients and postmenopausal women, and to identify risk factors for VFs in SSc. In this cross-sectional study, prevalent VFs, 10-year probability of major osteoporotic fracture by FRAX (FRAX-MOF), TBS, and BMD were assessed in women with SSc (n = 69) and RA (n = 58), and postmenopausal women (n = 38). Risk factors for osteoporosis, modified Rodnan total skin score (mRSS), organ involvement, and patterns of nailfold capillaroscopy (NFC) were also evaluated. The accuracy of BMD (T-score ≤ -2.5), TBS and FRAX-MOF, with and without TBS adjustment, to detect prevalent VF was assessed by determining the area under the receiver operating characteristic (ROC) curve. Patients with SSc (14.5%) and RA (17.2%) had significantly more VFs than postmenopausal women (0%) (P = .031). Non-significant differences were observed in TBS and BMD of all groups. The FRAX-MOF were higher in RA (9.2%) than SSc group (6.1%) and postmenopausal women (5.5%) (P < .001). Based on the ROC curve, TBS-adjusted FRAX-MOF (0.803) showed largest area under curve (AUC) to detect the prevalent VFs, followed by FRAX-MOF (0.796), TBS (0.765), and BMD (0.588) in the SSc group. In the RA group, FRAX-MOF had the largest AUC (0.896), followed by TBS-adjusted FRAX-MOF (0.863), TBS (0.736), and BMD (0.686). The cutoffs for FRAX-MOF and TBS-adjusted FRAX-MOF for detecting VFs were 8.95% and 9.7% for SSc, and 14.5% and 14% for RA. No association between VFs and SSc subtypes, organ involvement, mRSS or NFC patterns was found. FRAX-MOF, with or without TBS, had better predictive value for VFs than BMD and TBS in SSc. However, FRAX-MOF underestimated the probability of VFs in SSc compared with RA.

The Impact of Persistent Low Weight Status on the Occurrence of Vertebral Fractures: A Nationwide Population-Based Cohort Study.

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. 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. 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. 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.

Prevalence of Vertebral Compression Fracture Among Rheumatoid Arthritis Patients in Sulaymaniyah

Background: The risk of fractured vertebral increases in patients with rheumatoid arthritis as they are more likely to suffer from osteopenia, and osteoporosis. Objectives: This study aimed to investigating the rate and risk factors of vertebral fractures in patients with rheumatoid arthritis. Methods: We recruited 201 patients aged between 30 and 70 who attended the rheumatology department at Shahid Hemn Teaching Hospital in Sulaymaniyah, between January and September 2022. Medical records were reviewed for disease and treatment characteristics while also clinically evaluated by a rheumatologist. Spinal radiographs were assessed by two experienced radiologists blinded to patients’ clinical diagnosis and status. Compression fractures were classified by using the Genant semiquantitative method, and the type of fracture was classified as wedged fracture, biconcave fracture, or crushed fracture. Results: Of the 201 included participants, 151 were female, and 50 were male. The BMI of women was higher than men by nearly four points (P&lt;0.001). Most women were also illiterate (68/151, 45.0%) and unemployed (139/151, 92.1%). Hypertension (28.4%) and diabetes mellitus (14.4%) were the most reported comorbidities. Women were more likely to have higher DAS28 scores while men had more vertebral fractures (P=0.003). The probability of fractures increased with age, male sex, and illiteracy compared to primary school, osteopenia, and osteoporosis through simple and multiple logistic regression models. Conclusion: With at least one fracture affects females and males at a rate of 27.8% and 52.0%, respectively. Also reported that age, male sex, illiteracy, osteopenia, and osteoporosis significantly increase the risk of fractures.

Identifying vertebral fractures in the Japanese population using the trabecular bone score: a cross-sectional study

BackgroundThe trabecular bone score (TBS) is reported to be an independent predictor of fracture risk in patients with primary or secondary osteoporosis. However, there have been few reports on its use in the Japanese population. This study aimed to investigate the risk factors for vertebral fracture in the Japanese population and to evaluate the usefulness of TBS.MethodsThis cross-sectional study involved 279 patients aged 60–90 years in whom bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry (DXA). TBS was calculated based on the DXA scans. The presence or absence of vertebral fractures was assessed from T11 to L5. The patients were divided into those with vertebral fractures (VF group, n = 104) and those without vertebral fractures (non-VF group, n = 175).ResultsOf the 104 patients in the VF group, 75 had 1 vertebral fracture and 29 had 2 or more fractures. The mean TBS was 1.28 in the VF group and 1.35 in the non-VF group (p < 0.001). The mean BMD values at the lumbar spine and femoral neck were lower in the VF group (p < 0.001). The areas under the receiver-operating characteristic curve for incidence of vertebral fractures were 0.700, 0.737, and 0.689 for TBS, lumbar spine BMD, and femoral neck BMD, respectively. Multiple logistic regression analysis identified lumbar spine BMD, TBS, and female sex as significant risk factors for vertebral fractures. The proportion of patients in the group with osteoporosis or osteopenia who had vertebral fractures was higher in those with a low TBS (≤ 1.23) than in those with a non-low TBS (> 1.23).ConclusionTBS was a significant indicator of vertebral fractures in the Japanese population and might contribute to identifying patients with vertebral fractures, particularly those with osteopenia who need pharmacologic therapy.

188. Adolescent idiopathic scoliosis: categorization of fracture patterns among blunt trauma patients relative to a general trauma population

BACKGROUND CONTEXT Adolescent idiopathic scoliosis (AIS) affects up to 4% of adolescents. As of yet, the characterization of traumatic injuries in AIS patients is unknown. PURPOSE To compare the risk of varying fracture locations after blunt trauma between patients with and without AIS. STUDY DESIGN/SETTING Retrospective review. PATIENT SAMPLE The Kid's Inpatient Database (KID) was queried from 2003 to 2009 to identify all patients aged 0-20 with AIS admitted for acute trauma. OUTCOME MEASURES The rates of various spinal fracture patterns as well as risk factors for vertebral fracture. METHODS KID was queried for AIS patients aged 0-20 years, from 2003 through 2009. AIS patients admitted for acute trauma were isolated. Mechanisms of injury (MOI), fracture locations and surgical procedures were assessed. Trauma AIS patients were then propensity-score matched to a general (Gen) trauma population of 323,729 KID patients, using age, sex and MOI. Fracture types were compared utilizing Chi-square and t-tests. Logistic regression analysis predicted relative odds of fracture in AIS patients. RESULTS Of 41,142 AIS cases identified, 442 patients suffered acute blunt trauma (2003: 112; 2006: 139; 2009: 186). Of those, the most prevalent MOIs were MVA (37.1%), pedestrian struck (PS) (22.9%), falls (18.3%) and assault (7.6%). Of the 442 acute blunt trauma patients, 99 (22.3%) sustained vertebral fracture. Of those, 25 patients had cervical fractures (MVA 66.52%, PS 24.14%, fall 6.9%), 23 thoracic (MVA 47.8%, PS 21.7%, fall 26.1%), 35 lumbar (MVA 57.1%, PS 20%, fall 25.7%), and 16 sacral/coccygeal (MVA 68.8%, PS 25%, fall 12.5%). Twenty-eight patients underwent spinal fusion (2-3 levels: 35.7%, 4-8 levels: 25.0%, >9 levels: 14.0%) and 14 had vertebral fracture repairs. After propensity-score matching (AIS: 432, Gen: 432), AIS patients had significantly more vertebral fractures (99 vs 52, p<0.001) and exhibited higher rates of thoracic (5.3% vs 2.5%, p=0.035) and lumbar fractures (8.1% vs 2.8%, p<0.001). Logistic regression showed AIS patients had increased odds of overall fracture (OR: 2.1 95% CI [1.4 - 3.1], p<.001), thoracic (OR: 2.2 95% CI [1.0 - 4.5], p=0.039) and lumbar fractures (OR: 3.1 95% CI [1.6 - 6.1], p<0.001). CONCLUSIONS AIS trauma patients relative to a normative trauma population were more likely to present with a vertebral fracture; specifically, thoracic and lumbar fractures. Authors acknowledge the limitations of the KID database, such as unavailability of radiographic data. FDA DEVICE/DRUG STATUS This abstract does not discuss or include any applicable devices or drugs. Adolescent idiopathic scoliosis (AIS) affects up to 4% of adolescents. As of yet, the characterization of traumatic injuries in AIS patients is unknown. To compare the risk of varying fracture locations after blunt trauma between patients with and without AIS. Retrospective review. The Kid's Inpatient Database (KID) was queried from 2003 to 2009 to identify all patients aged 0-20 with AIS admitted for acute trauma. The rates of various spinal fracture patterns as well as risk factors for vertebral fracture. KID was queried for AIS patients aged 0-20 years, from 2003 through 2009. AIS patients admitted for acute trauma were isolated. Mechanisms of injury (MOI), fracture locations and surgical procedures were assessed. Trauma AIS patients were then propensity-score matched to a general (Gen) trauma population of 323,729 KID patients, using age, sex and MOI. Fracture types were compared utilizing Chi-square and t-tests. Logistic regression analysis predicted relative odds of fracture in AIS patients. Of 41,142 AIS cases identified, 442 patients suffered acute blunt trauma (2003: 112; 2006: 139; 2009: 186). Of those, the most prevalent MOIs were MVA (37.1%), pedestrian struck (PS) (22.9%), falls (18.3%) and assault (7.6%). Of the 442 acute blunt trauma patients, 99 (22.3%) sustained vertebral fracture. Of those, 25 patients had cervical fractures (MVA 66.52%, PS 24.14%, fall 6.9%), 23 thoracic (MVA 47.8%, PS 21.7%, fall 26.1%), 35 lumbar (MVA 57.1%, PS 20%, fall 25.7%), and 16 sacral/coccygeal (MVA 68.8%, PS 25%, fall 12.5%). Twenty-eight patients underwent spinal fusion (2-3 levels: 35.7%, 4-8 levels: 25.0%, >9 levels: 14.0%) and 14 had vertebral fracture repairs. After propensity-score matching (AIS: 432, Gen: 432), AIS patients had significantly more vertebral fractures (99 vs 52, p<0.001) and exhibited higher rates of thoracic (5.3% vs 2.5%, p=0.035) and lumbar fractures (8.1% vs 2.8%, p<0.001). Logistic regression showed AIS patients had increased odds of overall fracture (OR: 2.1 95% CI [1.4 - 3.1], p<.001), thoracic (OR: 2.2 95% CI [1.0 - 4.5], p=0.039) and lumbar fractures (OR: 3.1 95% CI [1.6 - 6.1], p<0.001). AIS trauma patients relative to a normative trauma population were more likely to present with a vertebral fracture; specifically, thoracic and lumbar fractures. Authors acknowledge the limitations of the KID database, such as unavailability of radiographic data.

119. Changes in underweight status and risk of vertebral fracture: a nationwide population-based study

<h3>BACKGROUND CONTEXT</h3> Underweight as a risk factor for vertebral fracture has been introduced in previous literatures. However, there are few reports on whether the new occurrence or overcoming of underweight affects the incidence rate of vertebral fracture. <h3>PURPOSE</h3> We explored the effect of change in underweight status on the development of vertebral fracture. <h3>STUDY DESIGN/SETTING</h3> Retrospective analysis of prospectively collected nationwide cohort data. <h3>PATIENT SAMPLE</h3> The subjects of this study were 561,779 randomly selected adults (=40 years old) who underwent national health examinations in 2007 and 2009 and had no previous fractures. All insured Koreans aged 40 years and older, and all workers aged 20 years and older, must undergo regular NHIS checkups every 1–2 years without cost. These data provide information concerning anthropometric measurements, smoking and alcohol consumption status, and medical history through self-reported questionnaires and laboratory finding. <h3>OUTCOME MEASURES</h3> We investigated the incidence of vertebral fractures from one year after the date of the last examination. <h3>METHODS</h3> Depending on the presence (P) or absence (A) of underweight in the two health examinations, the population was classified into non-underweight (A-A), overcoming-underweight (P-A), newly-developed underweight (A-P), and persistent-underweight (P-P) groups. We employed a Cox proportional hazards regression model to evaluate the association between vertebral fracture risk and change in underweight status. <h3>RESULTS</h3> The incidence rate (IR) of vertebral fracture per 1,000 person years was 1.5. Hazard ratios with 95% confidence interval of overcoming-underweight, newly-developed underweight, and persistent-underweight groups compared to non-underweight group were 1.338 (1.04-1.721), 1.143 (0.876-1.49), and 1.359 (1.122-1.646), respectively (P=0.0013). Compared to individuals with non-underweight (IR=1.51), IR increased in those with newly-developed underweight (IR=2.02). Compared to individuals with persistent-underweight (IR=2.05), IR decreased in those with overcoming-underweight (IR=1.73). <h3>CONCLUSIONS</h3> New occurrence of underweight increases the risk of vertebral fracture, and the overcoming of underweight decreases the risk of vertebral fracture. Patients at risk for vertebral fracture should be careful not to fall into the underweight range even once, and it is important to overcome the underweight quickly to prevent vertebral fractures. <h3>FDA DEVICE/DRUG STATUS</h3> This abstract does not discuss or include any applicable devices or drugs.

Factors affecting bone mineral density in children and adolescents with secondary osteoporosis.

This study aimed to investigate the clinical factors associated with bone mineral density (BMD) among children and adolescents with osteoporosis secondary to treatment for underlying clinical conditions. We retrospectively reviewed the medical records of patients aged 10-18 years and evaluated them for lumbar spine BMD (LSBMD) after treatment for underlying diseases, including hemato-oncologic, rheumatologic system, and inflammator y bowel diseases. LSBMD measured by dual-energy x-ray absorptiometry (DXA) performed from March 2019 to March 2021 was evaluated. We analyzed 117 patients who underwent initial DXA after treatment for underlying diseases. Subjects in this study had multiple underlying diseases: hemato-oncologic (78.6%), rheumatologic (11.1%), and inflammatory bowel diseases (10.3%). There was no significant association between the z-score and bone metabolic markers (P&gt;0.05). However, higher cumulative glucocorticoid (GC) dose significantly reduced LSBMD z-score (P=0.029). Moreover, the association between cumulative dose of GC and initial z-score of LSBMD was significant in logarithmic regression analysis (P=0.003, R2=0.149). GC accumulation was a significant risk factor for vertebral fracture when the initial BMD was evaluated after treatment (P=0.043). Bone metabolic markers did not significantly influence the risk of vertebral fracture. Initial bone mass density of the lumbar spine evaluated after long-term GC use for underlying diseases is a predictor of further vertebral fractures.

Serum irisin concentrations and osteoporotic vertebral fractures in women with rheumatoid arthritis: A cross-sectional study.

Irisin stimulates osteoblast differentiation increasing bone mass a decreasing in irisin levels might contribute to osteoporotic fractures in inflammatory diseases. To date, there is controverted whether irisin levels are associated with osteoporotic fractures in rheumatoid arthritis (RA). Therefore, we evaluate the association of serum irisin with osteoporotic Vertebral Fractures (VFs) in women with RA.A total of 148 women with RA was included in the study.Clinical characteristics and risk factors of VFs was evaluated. For measurement of bone mineral density we included the assessment of lumbar spine (AP L1-L4) and Femoral Neck by dual-energy X-ray absorptiometry (DXA). VFs were evaluated by lateral vertebral assessment (LVA) of the dorsal and lumbar regions using X-ray and digital vertebral morphometry by DXA, using the Genant scale. Serum irisin levels were measured by ELISA. A reference group of 97 women with non-rheumatic diseases were included to compare irisin levels.RA patients had a median age of 59 years and 41% had osteoporosis. Seventy three (49%) had VFs. Lower irisin levels were observed in RA patients compared to controls (94 ± 74 vs 135 ± 103, P < .001). Irisin concentrations were lower in RA + VFs than RA non-VFs (74 ± 42 vs 113 ± 92 ng/mL, P = .001). In the multivariable logistic regression analysis the low 50 percentile irisin levels < 73 ng/mL (OR:3.1, 95% CI:1.55–6.2, P = .001), and disease duration of RA (OR:1.04, 95% CI:1.001–1.08, P = .04) were associated with an increase in the risk of VFs.A decrease of irisin levels is associated to VFs in RA. These results are valuable to consider that RA patients with low levels of irisin are in a potential risk of VFs.

Bone-vessels relationships: association between calcifications of the iliac arteries with vertebral fractures in hemodialysis patients – results from the VIKI study

Abstract Background Vascular calcification and fragility fractures are common age-related disorders, associated with high morbidity and mortality especially in end-stage renal disease. Skeletal disorders occur in dialysis patients. Few studies have provided data on the prevalence of vertebral fractures (VF) and their association with large artery calcifications. Purpose We evaluated the relationship of iliac arteries calcifications (IACs) and abdominal aorta calcifications (AACs) with the risk for VFs in hemodialysis (HD) patients. Methods The VIKI Study is a cross-sectional study involving 387 HD patients from 18 Italian dialysis centers, assessing demographic, clinical and biochemical data in such patients. Biochemical data included bone health markers such as vitamin K levels, vitamin K-dependent proteins, vitamin 25(OH)D, alkaline phosphatase, parathormone, calcium, phosphate, Bone Gla Protein and Matrix Gla Protein. The presence of VF, IACs and AACs were determined through standardized radiograms of the spine. A &amp;gt;20% reduction of vertebral body height was considered a VF. We quantified vascular calcifications by measuring the length of calcium deposits along the abdominal arteries, classifying the degree of severity for the IACs and AACs with a specific score (mild: 0.1–3 cm; moderate: 3.1–5 cm; and severe &amp;gt;5 cm) previously validated for AACs. Results The prevalence of IACs was 56.1%, and of AACs 80.6%. After adjusting for confounding variables, the presence of IACs was associated with 73% higher odds of VF (p=0.028), whereas we found no association (p=0.294) for AACs. The presence of IACs associated with VF irrespective of calcification severity. Patients with IACs had lower levels of the vitamin K2, menaquinone 7 (0.99 vs 1.15 ng/ml; p=0.003), and deficiency of this marker became greater when adjusting for triglyceride levels (0.57 vs 0.87 ng/ml; p&amp;lt;0.001). Conclusions The presence of IACs, regardless of their extent, appears to be a clinically relevant risk factor for VFs. The association is further enhanced by including vitamin K, a main player in bone and vascular health, in the model. Prospective studies are needed to confirm these findings both in chronic kidney disease patients and in the general population. Funding Acknowledgement Type of funding sources: None.

The Vessels-Bone Axis: Iliac Artery Calcifications, Vertebral Fractures and Vitamin K from VIKI Study.

Vascular calcification and fragility fractures are associated with high morbidity and mortality, especially in end-stage renal disease. We evaluated the relationship of iliac arteries calcifications (IACs) and abdominal aortic calcifications (AACs) with the risk for vertebral fractures (VFs) in hemodialysis patients. The VIKI study was a multicenter cross-sectional study involving 387 hemodialysis patients. The biochemical data included bone health markers, such as vitamin K levels, vitamin K-dependent proteins, vitamin 25(OH)D, alkaline phosphatase, parathormone, calcium, and phosphate. VF, IACs and AACs was determined through standardized spine radiograms. VF was defined as >20% reduction of vertebral body height, and VC were quantified by measuring the length of calcium deposits along the arteries. The prevalence of IACs and AACs were 56.1% and 80.6%, respectively. After adjusting for confounding variables, the presence of IACs was associated with 73% higher odds of VF (p = 0.028), whereas we found no association (p = 0.294) for AACs. IACs were associated with VF irrespective of calcification severity. Patients with IACs had lower levels of vitamin K2 and menaquinone 7 (0.99 vs. 1.15 ng/mL; p = 0.003), and this deficiency became greater with adjustment for triglycerides (0.57 vs. 0.87 ng/mL; p < 0.001). IACs, regardless of their extent, are a clinically relevant risk factor for VFs. The association is enhanced by adjusting for vitamin K, a main player in bone and vascular health. To our knowledge these results are the first in the literature. Prospective studies are needed to confirm these findings both in chronic kidney disease and in the general population.

Interactive effect of sarcopenia and falls on vertebral osteoporotic fracture in patients with rheumatoid arthritis.

Whether sarcopenia and falls are a risk factor for vertebral fracture in RA patients has not been demonstrated. This study aimed to explore the incidence of vertebral osteoporotic fracture (VOPF) and its relationship with sarcopenia and falls in RA patients. A total of 474 RA patients and 156 controls were enrolled in this study. Anteroposterior and lateral X-ray examinations of the vertebral column (T4-L4) were used for the semiquantitative assessment of VOPF. Bone mineral density was measured by dual-energy X-ray absorptiometry. Skeletal muscle mass was measured by direct segmental multifrequency bioelectrical impedance analysis (DSM-BIA method). RA patients had an increased risk of sarcopenia (62.4% vs 9.0%, x2 = 47.478, P < 0.001), falls (30.2% vs 3.2%), osteoporosis (OP) (33.5% vs 12.8%, x2 = 134.276, P < 0.001), and VOPF (20.3% vs 3.8%, x2 = 47.478, P < 0.001) than controls. Patients with sarcopenia were more likely to have VOPF than RA without sarcopenia (24.0% vs 14.0%, x2 = 6.802, P = 0.009). RA with sarcopenia and prior falls had the highest incidences of VOPF (36.7%). Older age (OR = 1.056, P < 0.001, 95% CI 1.030-1.083), falls (OR = 2.043, P = 0.003, 95% CI 1.238-3.371), OP (OR = 1.819, P = 0.034, 95% CI 1.046-3.163), and usage of glucocorticoids (GCs) (OR = 1.862, P = 0.022, 95% CI 1.093-3.172) were risk factors for VOPF in RA patients, while a higher skeletal muscle index (SMI) was a protective factor (OR = 0.754, P = 0.038, 95% CI 0.578-0.984) for VOPF in RA patients. The interactive effect of sarcopenia and falls is associated with a higher risk of VOPF in patients with RA.

The incidence of osteoporosis and vertebral fracture in women with postmenopausal type 2 diabetes mellitus and predisposing factors of vertebral fractures

Background: Type 2 diabetes mellitus (DM) has an increased fracture risk due to loss of bone quality and tendency to falling. The aim of the study was to analyze the incidence of osteoporosis and vertebral fractures (VF) in postmenopausal women with type 2 DM and to define the risk factors of VF in terms of clinical, metabolic characteristics and diabetes related microvascular complications.Methods: The 42 postmenopausal patients with type 2 DM were included to the study in Haseki Training and Research Hospital outpatient clinics.Results: Osteoporosis with regard to lumbar spine (LS) and femur neck (FN) was 8.4%, 19.4%, respectively. Vertebral fracture ratio was 31%. There was no statistical significance between vertebral fracture and osteoporosis. In logistic regression analysis, longer postmenopausal period, higher postprandial blood glucose (PBG), presence of peripheral neuropathy was found associated with vertebral fracture (p=0.04, 0.04, and 0.05, respectively).Conclusions: In this study we suggest to consider the length of postmenopausal period, PBG and peripheral neuropathy for assessing the risk of VF.