Objective To analyze the prevalence status of lumbar disc herniation(LDH)in elderly patients with osteoporosis(OP)and to explore its influencing factors.Methods The medical records of 528 elderly patients who underwent lumbar quantitative computed tomography(QCT)at Lishui Central Hospital from May 2020 to October 2023 were analyzed retrospectively.According to the measurement results of QCT bone mineral density,the patients were divided into osteoporosis group(n=176,bone mineral density＜80 mg/cm3),low bone mass group(n=192,80≤ bone mineral density≤120 mg/cm3)and control group(n=160,bone mineral density＞120 mg/cm3).The general data were collected among the three groups,and the medical history and results of X-ray,CT and other imaging examinations were comprehensively evaluated,and the prevalence status of LDH was determined.According to the presence or absence of prevalence of LDH,the patients in the osteoporosis group were divided into LDH group and non-LDH group.The gen-eral data,laboratory indicators,bone mineral density indicators,lumbar and abdominal muscle endurance and nutritional status were compared between both groups.Logistic regression analysis was used to explore the influencing factors of LDH in elderly patients with OP.Results The prevalence rate of LDH in osteoporosis group was significantly higher than that in low bone mass group and control group(P＜0.05).Univariate analysis showed that the proportions of estra-diol(E2)level＜18.35 pmol/L,bone mineral density＜60 mg/cm3and lumbar and abdominal muscle endurance＜25 s in LDH group were higher than those in non-LDH group(P＜0.05).Multivariate analysis revealed that bone mineral density＜60 mg/cm3,E2 level＜18.35 pmol/L and lumbar and abdominal muscle endurance＜25 s were independent risk factors for LDH in elderly patients with OP(P＜0.05).Bone mineral density,E2 and lumbar and abdominal mus-cle endurance had high efficiency on predicting LDH in elderly OP patients(P＜0.05).Conclusions The prevalence rate of LDH in elderly patients with osteoporosis is higher than that in the general population and people with low bone mass.The more severe the osteoporosis,the lower the estrogen level and the lumbar and abdominal muscle endurance are the risk facters of LDH.
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