AB0886 INCIDENCE OF FRACTURES IN A BARIATRIC SURGERY COHORT

Background: Fragility fractures (FF) represent a health problem and among them, the VFF. They have worse vital prognosis, are at greater risk of new FF, had higher comorbidity, with clinical manifestations in only 30%-40% of cases. One in 6 women and one in 12 adult males will have a VFF. Objectives: To analyze the clinical characteristics of FF patients attended in the FLS at Virgen Macarena University Hospital. Compare the sociodemographic and clinical characteristics of VFF patients with those with OFF. Methods: Design: Prospective cohort. Patients attended in the FLS from May 2018 to November 2019 in a protocolized manner (Openclinica®). Inclusion criteria: a clinical FF in the previous two years. Descriptive statistics: percentages and means with 25th and 75th percentile. Inferential statistic by parametric and nonparametric tests. The project was approved by the Ethics Committee and patients signed consent to participate. Results: Data from 414 patients with a first FF are analyzed, 101 (25%) with VFF and 313 (76%) with OFF [188 (45%) hip, 66 (16%) distal radius, 32 (8%) humerus and 27 (6%) miscellaneous (pelvis, ribs, tibia)]. All VFFs analyzed had clinical symptoms and the number of fractured vertebrae was 2 (1-3). In 28 (37%) were FF of dorsal vertebrae, at 25 (33%) lumbar and 23 (30%) dorsal and lumbar. Comparative analysis showed differences in age VFF 71 (62-77) vs OFF 76 (66 – 83) years, p=0.0003. It highlighted a bimodal distribution according to age, with a peak incidence of 55 to 68 years and another between 75-80 years (Graph). Referral unit to FLS: VFF Rheumatology (42%) and/or Traumatology Emergency Room (44%) vs OFF Internal Medicine (45%) and General Traumatology Unit (38%), p=0.0001. There were also differences in the treatment with teriparatide (VFF 20% vs OFF 4%); zoledronate (VFF 6% vs OFF 3%) and alendronate (VFF 44% vs OFF 63%, p=0001); days of immobilization (VFF 30 (0 - 60) vs OFF 10 (0 - 30), p-0.01); they have greater independence to carry out activities of daily life (Barthel Scale) VFF 95(81 – 100) vs OFF 80 (60 – 95), p=0.00001; increased clamping force of hands 18 (12 - 20) vs 12 (8 - 18) mmHg, p=0.001, and lower risk of falls (J D Downton Scale) (VFF 43% vs OFF 60%, p=0,01). While the number of relevant comorbidities was higher in VFF 3 (1 - 5) vs OFF 2 (1 - 4) it was no statistical, p=0.3. The use of GCC was risky for VFF (n=13, 13%) vs OFF (n=17, 5%), p=0.01 and RR (95%CI) 2.3 (1.01 – 5.3) and not for other drugs (GnRH inhibitors, aromatase inhibitors or chemotherapy). No differences in sex were found (VFF 80%- vs OFF 80% women, p=0.9), previous FF history (9% vs 12%, p=0.2), secondary OP (16% vs 21%, p=0.1); percentage of patients with OP by femoral neck DEXA (VFF 35% vs 42%, p=0.2) or by lumbar spine DEXA (VFF 36% vs OFF 34%, p=0.8). Conclusion: VFF have a bimodal age-based distribution, usually occurring in younger patients, with a higher degree of independence and muscle strength and lower risk of falls, although they are associated with longer duration of immobilization, compared to OFF. In our cohort, VFFs affect 2 or more vertebrae and they are commonly treated with parenteral osteoporotic drugs. The use of glucocorticoids doubled the risk of developing a VFF, these findings are similar to those of others published cohorts. This project received a grant of the Ministry Health of the Junta de Andalucia Ref.PIN-0092-2016. Bibliography: [1]Gerdhem P. Best Practice & Research Clinical Rheumatology 27 (2013) 743–755 [2]McCarty J,et al. Diagnosis and management for vertebral compression fractures. American Family of Physicians Jul1, 2016 Vol 94 No 1. Disclosure of Interests: Blanca Hernandez-Cruz Speakers bureau: Abbvie, Lilly, Sanofi, BMS, STADA, Francisco Jesus Olmo Montes: None declared, Maria Jose Miranda Garcia: None declared, Maria Dolores Jimenez Moreno: None declared, Maria Angeles Vazquez Gomez: None declared, Mercedes Giner Garcia: None declared, Miguel Angel Colmenero Camacho: None declared, Jose Javier Perez Venegas: None declared, Maria Jose Montoya Garcia: None declared