Inverse Relation Between Osteoporosis and Spondylosis in Postmenopausal Women As Evaluated by Bone Mineral Density and Semiquantitative Scoring of Spinal Degeneration

Miyakoshi, Naohisa; Itoi, Eiji; Murai, Hajime; Wakabayashi, Ikuko; Ito, H.; Minato, Takashi

doi:10.1097/01.brs.0000048650.39042.58

Cited by 71 publications

(51 citation statements)

References 28 publications

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“…Osteophyte formation was evaluated using the Nathan classification (0-4) and the total score (osteophyte score, 0-20) for L1/2-L5/S1 in this classification was also determined [15]. The degree of disc height narrowing was scored based on the scale of Miyakoshi et al [16], in which 0, 1 and 2 reflect a 0-20, 20-50 and [50% reduction in disc height compared with the L1-L2 disc, and the total score from the L2-L3 to the L5-S1 discs was defined as the disc score. A disc score of 0 corresponds to no disc degeneration.…”

Section: Radiographic Evaluationmentioning

confidence: 99%

Back muscle strength and spinal mobility are predictors of quality of life in middle-aged and elderly males

et al. 2010

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With aging of society, clarification of the relationship between QOL and abnormal posture in the elderly may allow improvement of QOL through any preventive methods and training. However, sagittal balance has not been studied widely and most studies have focused on postmenopausal patients with osteoporosis. In this report, we provide the first evaluation of the simultaneous effects of degenerative changes on radiograph, spinal range of motion (ROM), sagittal balance, and back muscle strength, and examine the influence of these effects on QOL of the middleaged and elderly male subjects. The subjects were 100 Japanese males who underwent a basic health checkup. Lumbar lateral radiograph, sagittal balance and spinal mobility determined with SpinalMouse Ò and back muscle strength were measured. The thoracic/lumbar angle ratio (T/L ratio) was used as an index of sagittal balance. SF-36 physical component summary (PCS) scores showed a significant negative correlation with age (r = -0.377), osteophyte score (r = -0.246) and T/L ratio (r = -0.214), and a significant positive correlation with lumbar lordosis angle (r = 0.271), thoracic ROM (r = 0.282), and back muscle strength (r = 0.549). Multiple regression analysis indicated that thoracic spinal ROM (r = 0.254, p \ 0.01) and back muscle strength (r = 0.488, p \ 0.0001) were significantly associated with SF-36 PCS (R 2 = 0.403).In conclusion, QOL of the middle-aged and elderly male subjects was related to sagittal balance, lumbar lordosis angle, spinal ROM, and back muscle strength. Exercise including muscle strength and spinal ROM may be able to influence these primary factors related to QOL. Back muscle strength and thoracic ROM impact on improvement of QOL in the middle-aged and the elderly.

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Section: Radiographic Evaluationmentioning

confidence: 99%

Back muscle strength and spinal mobility are predictors of quality of life in middle-aged and elderly males

et al. 2010

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“…Osteophyte formation was evaluated using the Nathan classification (0-4) and the total score (osteophyte score, 0-20) for L1/2-L5/S1 in this classification was also determined [18]. The degree of disc height narrowing was scored based on the scale of Miyakoshi et al [19], in which 0, 1 and 2 reflect a 0-20, 20-50 and [50 % reduction in disc height, respectively, compared with the L1-L2 disc. The total score from the L2-L3 to L5-S1 discs was defined as the disc score.…”

Section: Radiographic Evaluationmentioning

confidence: 99%

Influence of spinal sagittal alignment, body balance, muscle strength, and physical ability on falling of middle-aged and elderly males

et al. 2013

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Objective Risk factors for falling in elderly people remain uncertain, and the effects of spinal factors and physical ability on body balance and falling have not been examined. The objective of this study was to investigate how factors such as spinal sagittal alignment, spinal range of motion, body balance, muscle strength, and gait speed influence falling in the prospective cohort study. Methods The subjects were 100 males who underwent a basic health checkup. Balance, SpinalMouse Ò data, grip strength, back muscle strength, 10-m gait time, lumbar lateral standing radiographs, body mass index, and fall history over the previous year were examined. Platform measurements of balance included the distance of movement of the center of pressure (COP) per second (LNG/TIME), the envelopment area traced by movement of the COP (E AREA), and the LNG/E AREA ratio. The thoracic/lumbar angle ratio (T/L ratio) and sagittal vertical axis (SVA) were used as an index of sagittal balance. Results LNG/TIME and E AREA showed significant positive correlations with age, T/L ratio, SVA, and 10-m gait time; and significant negative correlations with lumbar lordosis angle, sacral inclination angle, grip strength and back muscle strength. Multiple regression analysis showed significant differences for LNG/TIME and E AREA with T/L ratio, SVA, lumbar lordosis angle and sacral inclination angle (R 2 = 0.399). Twelve subjects (12 %) had experienced a fall over the past year. Age, T/L ratio, SVA, lumbar lordosis angle, sacral inclination angle, grip strength, back muscle strength, 10-m gait time, height of the intervertebral disc, osteophyte formation in radiographs and LNG/E AREA differed significantly between fallers and non-fallers. The group with SVA [ 40 mm (n = 18) had a significant higher number of subjects with a single fall (6 single fallers/18: p = 0.0075) and with multiple falls (4 multiple fallers/18: p = 0.0095). Conclusion Good spinal sagittal alignment, muscle strength and 10-m gait speed improve body balance and reduce the risk of fall. Muscle strength and physical ability are also important for spinal sagittal alignment. Body balance training, improvement of physical abilities including muscle training, and maintenance of spinal sagittal alignment can lead to prevention of fall.

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“…Osteoporosis and osteoarthritis are both common conditions with a high prevalence in the elderly. Although an inverse relationship between osteoporosis and osteoarthritis has been suggested, these two degenerative conditions may certainly coexist [7,21]. Women in whom osteoporosis and osteoarthritis coexisted were significantly older than those having osteoarthritis or vertebral deformity independently [33], suggesting one of the reasons for a lack of association between BMD and LBP among women aged over 65 years.…”

Section: Discussionmentioning

confidence: 99%

“…Many authors have reported that in women with vertebral osteophytes or intervertebral disc degeneration, the BMD values were found to be significantly higher than in unaffected subjects, although almost all the measurement sites of BMD that proved this relation were either in the lumbar spine or the femur [3, 21,29], the exception being reports by von der Recke et al and Nanjo et al, where 599 measurements were taken at the distal radius [22,35]. It is suggested that higher bone mass may increase bone stiffness, and thereby increase loading of articular cartilage, leading to cartilage damage [30].…”

Section: Discussionmentioning

confidence: 99%

Positive relationship between bone mineral density and low back pain in middle-aged women

Manabe

Takasugi

Iwamoto

2003

European Spine Journal

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Inverse Relation Between Osteoporosis and Spondylosis in Postmenopausal Women As Evaluated by Bone Mineral Density and Semiquantitative Scoring of Spinal Degeneration

Cited by 71 publications

References 28 publications

Back muscle strength and spinal mobility are predictors of quality of life in middle-aged and elderly males

Back muscle strength and spinal mobility are predictors of quality of life in middle-aged and elderly males

Influence of spinal sagittal alignment, body balance, muscle strength, and physical ability on falling of middle-aged and elderly males

Positive relationship between bone mineral density and low back pain in middle-aged women

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