Comparison of the osteogenic effects between two surface interferential stimulation devices to enhance surgically based spinal fusion

2004 ◽  
Vol 17 (01) ◽  
pp. 41-47
Author(s):  
S. A. Martinez ◽  
L. V. Smith ◽  
W. J. Carroll ◽  
J. A. Zimmermann ◽  
M. S. Shih ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Spinal Fusion ◽  
Bone Mineral ◽  
Controlled Study ◽  
Control Group ◽  
Lumbar Spinal Fusion ◽  
Fusion Model ◽  
Mineral Density ◽  
Disc Space ◽  
Lumbar Spinal

SummaryIn human medicine, lumbar spinal fusion procedures for chronic degenerative conditions have significant failure rates leading to the formation of pseudoarthroses. Adjunct procedures including the use of electrical stimulation devices have been developed in animal models, and utilized in human clinical cases, in an attempt to reduce the incidence of nonunion. A randomized, controlled study was performed to compare the effects of two surface interferential stimulation devices (SIS) on a rabbit lumbar spinal fusion model. Twenty-five rabbits underwent bilateral intertransverse process arthrodesis at the L2-L3 disc space. The rabbits were divided into five groups: one control group receiving sham stimulation, and four treatment groups receiving interferential stimulation from one of two devices (RS4i at 13.3 mA, RS4i at 15.8 mA, RS4v at 11.6 mA, and RS4v at 14.8 mA). Dual energy X-ray absorptiometry analyses (DXA) were performed and at 2 week intervals to evaluate fusion site bone mineral density. All rabbits were euthanitized at eight weeks and fusion sites were evaluated for biomechanical strength and histomorphometric properties. There was not any difference in bone mineral density between the groups during the eight week test period. The uniaxial tension tests evaluating maximum load to failure, stiffness, and energy absorbed also resulted in no statistical differences between the groups. The RS4i device at 15.8 mA yielded an increased amount of lamellar bone compared to the control group (p = 0.02). The RS4v device at 11.6 mA resulted in less total bone than the control group (p = 0.04).

Early Changes in Bone Mineral Density Above a Combined Anteroposterior L4-S1 Lumbar Spinal Fusion

Spine ◽  
1995 ◽  
Vol 20 (15) ◽  
pp. 1674-1678 ◽  
Author(s):  
G. Mitchell Bogdanffy ◽  
Donna D. Ohnmeiss ◽  
Richard D. Guyer
Keyword(s):  
Bone Mineral Density ◽  
Spinal Fusion ◽  
Bone Mineral ◽  
Lumbar Spinal Fusion ◽  
Mineral Density ◽  
Lumbar Spinal

The anti-osteoporostic effects of Natto on Bone Mineral Density in Perimenopausal Women:

2020 ◽  
Vol 27 ◽  
Author(s):  
Yuan Liu ◽  
Yuan He ◽  
He Baorong ◽  
Kong Lingbo
Keyword(s):  
Bone Mineral Density ◽  
Systematic Review ◽  
Cohort Study ◽  
Bone Mineral ◽  
Prospective Studies ◽  
Meta Analysis ◽  
Statistical Significance ◽  
Controlled Study ◽  
Control Group ◽  
Mineral Density

Objective: To conduct a systematic review and meta-analysis of prospective studies investigating the improvement effects of natto on bone mineral density in perimenopausal women. Design Systematic review and meta-analysis.Data sources PubMed, EMBASE and Cochrane database searched up to February 2019. Review methods: This study was carried out according to the PRISMA guidelines10 for systematic reviews. The protocol of the review was registered in the PROSPERO registry (CRD42019133183). Results: The review identified 3 unique prospective studies comprising 1658 non-overlapping participants. Meta-analysis showed that natto could significantly improve lumbar bone mineral density (BMD) (P=0.002, WMD=0.26). 95% CI:0.09-0.43) in cohort studies. However, the randomized controlled study showed no statistical difference between the two (P=0.31, WMD=0.05; 95% CI:-0.05-0.15). In addition natto significantly improve the BMD of femoral neck in cohort study and randomized control study (P=0.03, WMD=0.42). 95% CI:0.05-0.79, I2= 72%); (P < 0.0001, WMD=0.16; 95% CI:0.08-0.24), respectively. However, all studies demonstrated that natto has no improvement effects on hip joint BMD. In that the cohort study showed no statistical significance between the natto intake group and the control group (P=0.21, WMD=0.10). 95% CI:-0.06-0.25, I2= 18%) and the randomized controlled study also showed no statistical significance between the natto intake group and the control group (P=0.09, WMD=-0.06). 95% CI:-0.13-0.01). Conclusion: Through systematic review and meta-analysis for prospective studies of natto on BMD, we could speculate the dietary intake natto has the improvement effects on BMD of the femoral neck, but not the hip joint. Such results may be related to differences in the anatomical structure of tissues. The results of the RCT study and cohort study on the lumbar spine were not the same, which may be related to the fact that participants in the RCT study were Caucasian and participants in the cohort study were Asian. Therefore, more large-sample and high-quality RCT studies are needed to further clarify the improvement effect of natto on osteoporosis.

scholarly journals Effect of Denosumab on Bone Mineral Density and Markers of Bone Turnover among Postmenopausal Women with Osteoporosis

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
A. Sánchez ◽  
L. R. Brun ◽  
H. Salerni ◽  
P. R. Costanzo ◽  
D. González ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Turnover ◽  
Postmenopausal Women ◽  
Bone Mineral ◽  
Bone Turnover Markers ◽  
Control Group ◽  
Bone Resorption Marker ◽  
Similar Response ◽  
Mineral Density ◽  
Turnover Markers

The aim of this study was to evaluate the effect of denosumab (Dmab) on bone mineral density (BMD) and bone turnover markers after 1 year of treatment. Additionally, the effect of Dmab in bisphosphonate-naïve patients (BP-naïve) compared to patients previously treated with bisphosphonates (BP-prior) was analyzed. This retrospective study included 425 postmenopausal women treated with Dmab for 1 year in clinical practice conditions in specialized centers from Argentina. Participants were also divided according to previous bisphosphonate treatment into BP-naïve and BP-prior. A control group of patients treated with BP not switched to Dmab matched by sex, age, and body mass index was used. Data are expressed as mean ± SEM. After 1 year of treatment with Dmab the bone formation markers total alkaline phosphatase and osteocalcin were significantly decreased (23.36% and 43.97%, resp.), as was the bone resorption marker s-CTX (69.61%). Significant increases in BMD were observed at the lumbar spine, femoral neck, and total hip without differences between BP-naïve and BP-prior. A better BMD response was found in BP-prior group compared with BP treated patients not switched to Dmab.Conclusion. Dmab treatment increased BMD and decreased bone turnover markers in the whole group, with similar response in BP-naïve and BP-prior patients. A better BMD response in BP-prior patients versus BP treated patients not switched to Dmab was observed.

scholarly journals Bone mineral density in children with long-term antiepileptic therapy

2013 ◽  
Vol 141 (5-6) ◽  
pp. 329-332 ◽  
Author(s):  
Milena Dimic ◽  
Aleksandar Dimic ◽  
Zoran Milosevic ◽  
Jelena Vojinovic
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Drug Therapy ◽  
Antiepileptic Drug ◽  
Bone Mineral ◽  
Control Group ◽  
Mineral Density ◽  
Antiepileptic Therapy ◽  
Epileptic Children ◽  
Antiepileptic Drug Therapy

Introduction. Vitamin D active metabolites deficit that is altered by negative calcium and phosphorus balance is a potential complication during long?term antiepileptic drug therapy. Objective. The aim of this study was to examine lumbar bone mineral density (BMD) in epileptic children receiving antiepileptic drug therapy longer than one year. methods. The examined sample consisted of 34 epileptic children, 18 male and 16 female, aged 6?12 (9.77?2.01) years, treated with carbamazepine, valproate, phenobarbital, lamotrigine or their combination without vitamin D supplementation. The lumbar spine BMD (L1?L4) was estimated by a Lunar densitometer and obtained results were compared with results of 35 matched population of healthy children from the control group. results. Lumbar BMD Z?score was significantly lower in female patients treated with antiepileptic therapy compared with those in the control group (?1.048?1.35 vs. ?0.399?0.518; p=0.03). Bone mineral density Z?score decrease of both gender groups receiving antiepileptic polytherapy was significantly lower compared to the control group (?1.153?0.938 vs. ?0.043?0.815; p=0.007). Therapy duration had no influence on the lumbar BMD level decrease either in boys (rxy=0.33; p=0.174) or in girls (rxy=0.02; p=0.935) treated with antiepileptic therapy. Conclusion. Our results have indicated that antiepileptic drug therapy usage longer than one year can have adverse affects on the lumbar spine BMD (L1?L4) in epileptic children, and that prophylactic vitamin D supplementation is also necessary in these patients.

scholarly journals Pemberian Kalium Buah Pisang Lampung terhadap Densitas Mineral Tulang pada Lansia

2019 ◽  
Vol 5 (1) ◽  
pp. 30
Author(s):  
Edy Waliyo ◽  
Nopriantini Nopriantini ◽  
Shelly Festilia Agusanty
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Random Sampling ◽  
The Elderly ◽  
Control Group ◽  
Mineral Density ◽  
Control Group Design ◽  
Separate Sample ◽  
Group Design ◽  
T Score

Abstract: Effect of Lampung Banana Potassium on Bone Mineral Density in the Elderly. This study aims to determine the effect of banana lampung on bone mineral density in the elderly in the Social Welfare Tresna Werdha and Werdha Graha Kasih Father’s home). This research is a research with experimental design with the separate sample pretest posttest control group design. The research was carried out in the Tresna Werdha Social Institution and the Werdha Graha Kasih Father’s house, from May to July 2017. The sampling technique was taken by random sampling The result of potassium feeding on 150 grams of banana per day for 30 days by increasing BMD T-score of 0.17 while in control group (without banana lampung) BMD T-score decreased by - 0.32. After intervention in both groups showed a difference of BMD T-score of 0.49. Abstrak: Pemberian Kalium Buah Pisang Lampung terhadap Densitas Mineral Tulang pada Lansia. Penelitian ini bertujuan untuk mengetahui mengetahui pengaruh pemberian buah pisang lampung terhadap bone mineral density pada lansia di wilayah Panti Sosial Tresna Werdha dan panti Werdha Graha Kasih Bapa). Penelitian yang dilakukan ini adalah penelitian dengan desain eksperimen dengan rancangan the separate sample pretest posttest control group design. Penelitian dilaksanakan di wilayah Panti Sosial Tresna Werdha dan panti Werdha Graha Kasih Bapa), mulai bulan Mei s/d Juli 2017. Teknik sampling diambil dengan cara random sampling Hasil pemberian kalium pada buah pisang lampung sebanyak 150 gr setiap hari selama 30 hari dengan dapat meningkatkan BMD T-score sebesar 0,17 sedangkan pada kelompok control (tanpa pemberian buah pisang lampung) BMD T-score menurun sebesar - 0,32. Setelah intervensi pada ke dua kelompok menunjukkan adanya perbedaan BMD T-score sebesar 0,49.

scholarly journals Effect of 12 weeks of recreational soccer on bone mineral density and sarcopenia in the elderly: a randomized clinical trial

1989 ◽  
Author(s):  
Guilherme Henrique de Lima Matias ◽  
◽  
André dos Santos Costa ◽  
Romulo Maia Carlos Fonseca
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Repeated Measures ◽  
Intervention Group ◽  
The Elderly ◽  
Whole Body ◽  
Control Group ◽  
Mineral Density ◽  
Before And After ◽  
Post Hoc

Objective: To verify the effect of recreational soccer on bone mineral density and sarcopenia in the elderly. Methods: Fourteen elderly people aged 65.9 ± 3.4 years were selected. They were separated into two groups: the intervention group and the control group; the intervention group played recreational soccer for 12 weeks on two days of the week. Assessments were performed for bone mineral density and body muscle mass before and after the intervention. For statistical analysis, the repeated measures ANOVA with Bonferroni’s post hoc test was used. Results: After 12 weeks, there was a significant change in bone mineral density in the region of the total femur (p = 0.020). Analyzing the participants’ sarcopenia, no significant results were found after the intervention period. Conclusion: Playing recreational soccer causes a significant improvement in the total femur and maintains bone regions in the spine, whole body, and femoral neck. Also, it promotes a removal from the threshold for sarcopenia screening in the elderly.

scholarly journals Preventing Loss of Femoral Periprosthetic Bone Mineral Density in Cementless Total Hip Arthroplasty Using a Tapered Wedge Stem in Patients With Osteoporosis Treated With Denosumab: a Retrospective, Cohort Study

2021 ◽  
Author(s):  
Keiji Kamo ◽  
Hiroaki Kijima ◽  
Koichiro Okuyama ◽  
Tetsuya Kawano ◽  
Nobutoshi Seki ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Total Hip Arthroplasty ◽  
Bone Mineral ◽  
Hip Arthroplasty ◽  
Stress Shielding ◽  
Control Group ◽  
Mineral Density ◽  
Total Hip ◽  
Cementless Total Hip Arthroplasty ◽  
Periprosthetic Bone Mineral Density

Abstract Background: Bone mineral density (BMD) of the proximal femur around the stem decreases due to stress shielding after cementless total hip arthroplasty (THA). When severe stress shielding occurs, the risk of periprosthetic femoral fractures increases, and this bone loss can also increase the difficulty of future revision THA. Denosumab is known to improve the quality and strength of cortical bone in the proximal femurs of patients with osteoporosis. The purpose of this study was to investigate whether denosumab prevents loss of proximal femoral periprosthetic BMD in cementless THA using a tapered wedge stem in patients with osteoporosis.Methods: Sixty-three consecutive patients who had undergone unilateral primary THA using a tapered wedge stem were included in this retrospective study. Twenty-four patients who received denosumab for osteoporosis were the denosumab group, and the 39 without denosumab were the control group. At 2 weeks, 6 months, and 12 months after THA, bone turnover markers and femoral periprosthetic BMD were measured.Results: BMD in zone 1 was significantly increased from baseline at both 6 and 12 months after THA in the denosumab group and significantly decreased in the control group. BMD in zone 7 was significantly decreased compared to baseline at both 6 and 12 months after THA in the control group, but not in the denosumab group. The use of denosumab for THA patients with osteoporosis was independently related to preventing loss of periprosthetic BMD of the femur at 12 months after surgery in zones 1 and 7 on multivariate analysis.Conclusions: Denosumab significantly increased proximal femoral periprosthetic BMD in zone 1 and prevented loss of BMD in zone 7 in patients with osteoporosis after cementless THA using a tapered wedge stem at both 6 and 12 months after surgery.

scholarly journals Impaired skeletal growth in mice with haploinsufficiency of IGF-I: genetic evidence that differences in IGF-I expression could contribute to peak bone mineral density differences

2005 ◽  
Vol 185 (3) ◽  
pp. 415-420 ◽  
Author(s):  
S Mohan ◽  
D J Baylink
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Individual Variation ◽  
Normal Population ◽  
Quantitative Computed Tomography ◽  
Control Group ◽  
Mineral Density ◽  
Peak Bone Mineral Density ◽  
Igf I ◽  
Peak Bmd

Although it is well established that there is considerable inter-individual variation in the circulating levels of IGF-I in normal, healthy individuals and that a genetic component contributes substantially to this variation, the direct evidence that inter-individual variation in IGF-I contributes to differences in peak bone mineral density (BMD) is lacking. To examine if differences in IGF-I expression could contribute to peak BMD differences, we measured skeletal changes at days 23 (prepubertal), 31 (pubertal) and 56 (postpubertal) in mice with haploinsufficiency of IGF-I (+/−) and corresponding control mice (+/+). Mice (MF1/DBA) heterozygous for the IGF-I knockout allele were bred to generate +/+ and +/− mice (n=18–20 per group). Serum IGF-I was decreased by 23% (P<0.001) in mice with IGF-I haploinsufficiency (+/−) group at day 56 compared with the control (+/+) group. Femoral bone mineral content and BMD, as determined by dual energy X-ray absorptiometry, were reduced by 20% (P<0.001) and 12% respectively in the IGF-I (+/−) group at day 56 compared with the control group. The peripheral quantitative computed tomography measurements at the femoral mid-diaphysis revealed that periosteal circumference (7%, P<0.01) and total volumetric BMD (5%, P<0.05) were decreased significantly in the +/− group compared with the +/+ group. Furthermore, serum IGF-I showed significant positive correlations with both areal BMD (r=0.55) and periosteal circumference (r=0.66) in the pooled data from the +/+ and +/− groups. Our findings that haploinsufficiency of IGF-I caused significant reductions in serum IGF-I level, BMD and bone size, together with the previous findings, are consistent with the notion that genetic variations in IGF-I expression could, in part, contribute to inter-individual differences in peak BMD among a normal population.

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