Masayuki Miyagi1, Gen Inoue2, Kosuke Murata2, Tomohisa Koyama2, Akiyoshi Kuroda2, Ayumu Kawakubo2, Yuji Yokozeki2, Yusuke Mimura2, Yuta Nanri3, Kazuhide Inage4, Tsutomu Akazawa5, Seiji Ohtori4, Kentaro Uchida2, Masashi Takaso2. 1. Department of Orthopedic Surgery, School of Medicine, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0375, Japan. masayuki008@aol.com. 2. Department of Orthopedic Surgery, School of Medicine, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0375, Japan. 3. Department of Rehabilitation, Kitasato University Hospital, Sagamihara, Japan. 4. Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan. 5. Department of Orthopaedic Surgery, St. Marianna University School of Medicine, Kawasaki, Japan.
Abstract
In the current study, multivariate analyses were performed to determine factors associated with low back pain (LBP) in patients with osteoporosis. Aging, high bone turnover, obesity, low trunk muscle mass, spinal global sagittal malalignment, and a high number of previous vertebral fractures were potential independent risk factors of pain-related disorders, gait disturbance, or ADL deficit due to LBP. PURPOSE: Patients with osteoporosis often experience low back pain (LBP) even in the absence of acute fractures. This study identifies factors that may affect questionnaires about LBP. METHODS: The data of 491 patients with osteoporosis were retrospectively reviewed. Data included patient age, sex, body mass index (BMI), bone mineral density of the lumbar spine, tartrate-resistant acid phosphatase 5b level (TRACP5b), trunk muscle mass, sagittal vertical axis (SVA), previous vertebral fractures, secondary osteoporosis, controlling nutritional status score, pain-related disorders and gait disturbance scores from the Japanese Orthopedic Association Back Pain Evaluation questionnaire (JOABPEQ), and Oswestry disability index (ODI) scores for activities of daily living (ADL) deficit. Patients with scores of 100 for each subsection of the JOABPEQ, or an ODI scores < 12 were considered to not have dysfunction (dysfunction (-) group). Multivariate analyses were used to determine variables associated with dysfunction. RESULTS: Pain-related disorders score of JOABPEQ was associated with aging, high BMI, and high SVA. Aging, high TRACP5b, high BMI, low TM, high SVA, and more previous vertebral fractures were associated with gait disturbance score of JOABPEQ. ODI scores were associated with high BMI, low TM, high SVA, and more previous vertebral fractures. CONCLUSIONS: Aging, high bone turnover, obesity, a low TM, spinal global sagittal malalignment, and a high number of previous VFs were potential independent risk factors of pain-related disorders or gait disturbance according to the JOABPEQ or ODI score in patients with osteoporosis.
In the current study, multivariate analyses were performed to determine factors associated with low back pain (LBP) in patients with osteoporosis. Aging, high bone turnover, obesity, low trunk muscle mass, spinal global sagittal malalignment, and a high number of previous vertebral fractures were potential independent risk factors of pain-related disorders, gait disturbance, or ADL deficit due to LBP. PURPOSE: Patients with osteoporosis often experience low back pain (LBP) even in the absence of acute fractures. This study identifies factors that may affect questionnaires about LBP. METHODS: The data of 491 patients with osteoporosis were retrospectively reviewed. Data included patient age, sex, body mass index (BMI), bone mineral density of the lumbar spine, tartrate-resistant acid phosphatase 5b level (TRACP5b), trunk muscle mass, sagittal vertical axis (SVA), previous vertebral fractures, secondary osteoporosis, controlling nutritional status score, pain-related disorders and gait disturbance scores from the Japanese Orthopedic Association Back Pain Evaluation questionnaire (JOABPEQ), and Oswestry disability index (ODI) scores for activities of daily living (ADL) deficit. Patients with scores of 100 for each subsection of the JOABPEQ, or an ODI scores < 12 were considered to not have dysfunction (dysfunction (-) group). Multivariate analyses were used to determine variables associated with dysfunction. RESULTS: Pain-related disorders score of JOABPEQ was associated with aging, high BMI, and high SVA. Aging, high TRACP5b, high BMI, low TM, high SVA, and more previous vertebral fractures were associated with gait disturbance score of JOABPEQ. ODI scores were associated with high BMI, low TM, high SVA, and more previous vertebral fractures. CONCLUSIONS: Aging, high bone turnover, obesity, a low TM, spinal global sagittal malalignment, and a high number of previous VFs were potential independent risk factors of pain-related disorders or gait disturbance according to the JOABPEQ or ODI score in patients with osteoporosis.
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