Abstract
PurposeThe purpose of this study was to evaluate the impact of different sarcopenia stages on osteoporotic vertebral compression refracture (OVCRF) and identify other risk factors of new osteoporotic vertebral compression fracture (OVCF).MethodsWe conducted a large, retrospective study of patients who underwent percutaneous kyphoplasty (PKP) for OVCF. Sarcopenia was staged as “presarcopenia”, “sarcopenia”, and “severe sarcopenia” according to the definition of the European Working Group on Sarcopenia in Older People. Univariate and multivariate analyses evaluating the risk factors for OVCRF were performed. ResultsA total of 329 patients were included, in which 20.4%, 13.1%, and 7.3% of the patients were identified as having “presarcopenia”, “sarcopenia”, and “severe sarcopenia” respectively. Advanced sarcopenia stage was associated with lower BMI, lower serum albumin level and higher NRS 2002 scores. Subsequent fractures developed in 72 (21.8 %) of 329 patients during the one year follow-up. In univariate analysis, female (p = 0.012), advanced age (≥ 75 years; p = 0.004), lower BMD (p =0.000), stage of sarcopenia (p = 0.009) were associated with OVCRFs. Multivariable analysis revealed that female (OR 6.325; 95% CI 2.176-18.368, p = 0.001), age (OR 1.863; 95% CI 1.002-3.464, p =0.049), lower BMD (OR 1.736; 95% CI 1.294-2.328, p = 0.000), sarcopenia (OR 2.536; 95% CI 1.130-5.692, p = 0.024) and severe sarcopenia (OR 4.579; 95% CI 1.615-12.968, p = 0.004) were independent risk factors of OVCRFs. ConclusionsSarcopenia and severe sarcopenia were independent risk factors for OVCRF, as well as low BMD, advanced age and female.