Incidence of spinal deformity in adults and its distribution according SRS-Schwab classification

Abstract

<sec><title>OBJECTIVE:</title><p> To evaluate the incidence of spinal deformity in adults, as well as its distribution according the curve type and the occurrence of sagittal modifiers of the SRS-Schwab classification..</p></sec><sec><title>METHODS:</title><p> Radiographs in frontal and lateral views of the entire column were performed and radiographic parameters were used to diagnose the vertebral deformity for the classification according to the SRS-Schwab system.</p></sec><sec><title>RESULTS:</title><p> We included 302 patients in the study, 236 (78.1%) women and 66 (21.9%) men. Fifty-six of the participants were diagnosed with ASD, 50 women and 6 men. The incidence of ASD was 18.5% in the total population, ranging from 9.1% in males and 21.2% in females (p=0.04). As to age group, the incidence was 11.9% in patients between 18 and 39 years, 12% between 40 and 59 years and 28.8% in patients with 60 years of age or older, significantly higher in the oldest group (p=0.002). When analyzing the correlation between age and progression of sagittal modifiers, there was no significant difference in the PI-LL and PT modifiers, but there was significant difference of SVA modifier (p=0.008), with a higher age in individuals "++".</p></sec><sec><title>CONCLUSION:</title><p> This study presented demographic data on ASD in a Brazilian population sample. There was a higher incidence of ASD in females and individuals aged ≥ 60 years. As for the sagittal modifiers of SRS-Schwab classification, there was a correlation between increasing age and degree of progression of SVA.</p></sec>

Sagittal spine shape literacy in the general adult population, assessed by a novel, simple graphical tool

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The use of three-column osteotomy in the treatment of rigid deformities of the adult spine

“… 1 , 2 In Brazil, a recent study showed a prevalence of 18.5% of ASD in outpatients, reaching 28.8% in individuals over 60 years of age. 3 Among the causes of ASD, iatrogenesis is noteworthy after long lumbar arthrodeses; other causes include deformities associated with multiple fractures due to bone insufficiency (osteoporosis), rheumatologic diseases, such as ankylosing spondylitis, or even degenerative disc disease. 4 …”

Non-radiographic methods of measuring global sagittal balance: a systematic review

“…This posture, which can be described according to the vertical alignment of the trunk over the pelvis, is defined as global sagittal balance and is termed anterior sagittal balance when exceeding predetermined threshold values. Anterior sagittal balance is the postural deformity that is most closely correlated with pain, activity limitations and reduced quality of life [ 2 ] and affects up to 29% of the population above 60 years of age [ 3 ].…”