ĐÁNH GIÁ NGUY CƠ LOÃNG XƯƠNG BẰNG CHỈ SỐ OSTA VÀ MỘT SỐ YẾU TỐ LIÊN QUAN Ở BỆNH NHÂN VIÊM CỘT SỐNG DÍNH KHỚP

Abstract

Objective: describe the OSTA index and associated factors in patients diagnosed with akylosing spondylitis. Methods: a cross-sectional study was conducted among patients satisfied the diagnostic criteria of ACR-1984 in terms of akylosing spondylitis and was treated at Trung tâm cơ xương khớp – Bach Mai Hospital between 8/2023 and 5/2024. Recruited patients were clinically examined, underwent necessary blood test and measured bone density by DEXA scan. Results: 35 patients were eligible for the study, 62.9% were male, the mean age was 51.6 ± 7.8 with the prevalence of patients ≥60 years old of 20%. The mean OSTA index was 0.3 ± 2.64, lowest in those with osteoporosis (2.13 ± 1.19) and highest in those without osteoporosis (3.42 ± 1.57) (p <0.001). Based on OSTA index, the prevalence of patients at low, moderate and high risk of osteroporosis were 45.7%, 51.4%, and 2.9%, respectively. OSTA index was associated with low height, low weight, low BMI and low bone density at both femur and spine. Conclusion: Based on OSTA index, the majority of patients with akylosing spondylitis had low to moderate risk of osteoporosis. Associated factors related to OSTA index were height, weight, BMI, and bone density