scholarly journals 7T MRI of distal radius trabecular bone microarchitecture: How trabecular bone quality varies depending on distance from end-of-bone

2016 ◽  
Vol 45 (3) ◽  
pp. 872-878 ◽  
Author(s):  
Lindsay M. Griffin ◽  
Stephen Honig ◽  
Cheng Chen ◽  
Punam K. Saha ◽  
Ravinder Regatte ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Distal Radius ◽  
Bone Quality ◽  
Bone Microarchitecture ◽  
Trabecular Bone Microarchitecture ◽  
Trabecular Bone Quality

Dental Cone Beam Computed Tomography for Trabecular Bone Quality Analysis in Maxilla and Mandible

2021 ◽  
pp. 542-564
Author(s):  
T. Christy Bobby ◽  
Shwetha V. ◽  
Vijaya Madhavi
Keyword(s):  
Trabecular Bone ◽  
Bone Strength ◽  
Bone Quality ◽  
Bone Microarchitecture ◽  
Quality Analysis ◽  
Trabecular Bone Microarchitecture ◽  
The Stability ◽  
Maxilla And Mandible ◽  
Trabecular Bone Quality ◽  
Implant Treatment

The stability of a dental implant is one of the most important aspects that decide the success rate of implant treatment. The stability is considerably affected by the strength of trabecular bone present in maxilla and mandible. Thus, finding of trabecular bone strength is a key component for the success of dental implants. The trabecular bone strength is usually assessed by quantity of bone in terms of bone mineral density (BMD). Recently, it has been revealed that along with quantity of bone, strength of the bone also depends on quality features commonly referred as trabecular bone microarchitecture. Since the quality of the trabecular bone is varying across the maxilla and mandible, preoperative assessment of trabecular bone microarchitecture at sub-region of maxilla and mandible are essential for stable implant treatment. Thus, in this chapter, the authors inscribe the quantitative analysis of trabecular bone quality in maxilla and mandible using CBCT images by employing contourlet transform.

Dental Cone Beam Computed Tomography for Trabecular Bone Quality Analysis in Maxilla and Mandible

2019 ◽  
pp. 151-177
Author(s):  
T. Christy Bobby ◽  
Shwetha V. ◽  
Vijaya Madhavi
Keyword(s):  
Trabecular Bone ◽  
Bone Strength ◽  
Bone Quality ◽  
Bone Microarchitecture ◽  
Quality Analysis ◽  
Trabecular Bone Microarchitecture ◽  
The Stability ◽  
Maxilla And Mandible ◽  
Trabecular Bone Quality ◽  
Implant Treatment

The stability of a dental implant is one of the most important aspects that decide the success rate of implant treatment. The stability is considerably affected by the strength of trabecular bone present in maxilla and mandible. Thus, finding of trabecular bone strength is a key component for the success of dental implants. The trabecular bone strength is usually assessed by quantity of bone in terms of bone mineral density (BMD). Recently, it has been revealed that along with quantity of bone, strength of the bone also depends on quality features commonly referred as trabecular bone microarchitecture. Since the quality of the trabecular bone is varying across the maxilla and mandible, preoperative assessment of trabecular bone microarchitecture at sub-region of maxilla and mandible are essential for stable implant treatment. Thus, in this chapter, the authors inscribe the quantitative analysis of trabecular bone quality in maxilla and mandible using CBCT images by employing contourlet transform.

Surface curvatures of trabecular bone microarchitecture

Bone ◽  
2002 ◽  
Vol 30 (1) ◽  
pp. 191-194 ◽  
Author(s):  
H Jinnai ◽  
H Watashiba ◽  
T Kajihara ◽  
Y Nishikawa ◽  
M Takahashi ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Bone Microarchitecture ◽  
Trabecular Bone Microarchitecture

The Effects of Bone Microstructure on Subsidence Risk for ALIF, LLIF, PLIF, and TLIF Spine Cages

2019 ◽  
Vol 141 (3) ◽  
Author(s):  
Vivek Palepu ◽  
Melvin D. Helgeson ◽  
Michael Molyneaux-Francis ◽  
Srinidhi Nagaraja
Keyword(s):  
Trabecular Bone ◽  
Bone Quality ◽  
Volume Fraction ◽  
Lumbar Fusion ◽  
Lumbar Vertebrae ◽  
Micro Ct ◽  
Cage Subsidence ◽  
Maximum Subsidence ◽  
Trabecular Bone Quality ◽  
The Impact

Several approaches (anterior, posterior, lateral, and transforaminal) are used in lumbar fusion surgery. However, it is unclear whether one of these approaches has the greatest subsidence risk as published clinical rates of cage subsidence vary widely (7–70%). Specifically, there is limited data on how a patient's endplate morphometry and trabecular bone quality influences cage subsidence risk. Therefore, this study compared subsidence (stiffness, maximum force, and work) between anterior (ALIF), lateral (LLIF), posterior (PLIF), and transforaminal (TLIF) lumbar interbody fusion cage designs to understand the impact of endplate and trabecular bone quality on subsidence. Forty-eight lumbar vertebrae were imaged with micro-ct to assess trabecular microarchitecture. micro-ct images of each vertebra were then imported into image processing software to measure endplate thickness (ET) and maximum endplate concavity depth (ECD). Generic ALIF, LLIF, PLIF, and TLIF cages made of polyether ether ketone were implanted on the superior endplates of all vertebrae and subsidence testing was performed. The results indicated that TLIF cages had significantly lower (p < 0.01) subsidence stiffness and maximum subsidence force compared to ALIF and LLIF cages. For all cage groups, trabecular bone volume fraction was better correlated with maximum subsidence force compared to ET and concavity depth. These findings highlight the importance of cage design (e.g., surface area), placement on the endplate, and trabecular bone quality on subsidence. These results may help surgeons during cage selection for lumbar fusion procedures to mitigate adverse events such as cage subsidence.

scholarly journals A novel approach to improve the accuracy of the box dimension calculations: Applications to trabecular bone quality

2019 ◽  
Vol 12 (4-5) ◽  
pp. 1527-1534 ◽  
Author(s):  
M. Fernández-Martínez ◽  
◽  
Yolanda Guerrero-Sánchez ◽  
Pía López-Jornet ◽  
Keyword(s):  
Trabecular Bone ◽  
Bone Quality ◽  
Box Dimension ◽  
Novel Approach ◽  
Trabecular Bone Quality

scholarly journals Bone Micro-CT Assessments in an Orchidectomised Rat Model Supplemented withEurycoma longifolia

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Rosmaliza Ramli ◽  
Mohd Fadhli Khamis ◽  
Ahmad Nazrun Shuid
Keyword(s):  
Trabecular Bone ◽  
Bone Microarchitecture ◽  
Bone Volume ◽  
High Dose ◽  
Micro Ct ◽  
Sprague Dawley ◽  
Elderly Male ◽  
Trabecular Bone Microarchitecture ◽  
Eurycoma Longifolia ◽  
Induced Changes

Recent studies suggested thatEurycoma longifolia, a herbal plant, may have the potential to treat osteoporosis in elderly male. This study aimed to determine the effects ofEurycoma longifoliasupplementation on the trabecular bone microarchitecture of orchidectomised rats (androgen-deficient osteoporosis model). Forty-eight-aged (10–12 months old)Sprague Dawleyrats were divided into six groups of sham-operated (SHAM), orchidectomised control (ORX), orchidectomised + 7 mg/rat testosterone enanthate (TEN) and orchidectomised +Eurycoma longifolia30 mg/kg (EL30), orchidectomised +Eurycoma longifolia60 mg/kg (EL60), orchidectomised +Eurycoma longifolia90 mg/kg (EL90). Rats were euthanized following six weeks of treatment. The left femora were used to measure the trabecular bone microarchitecture using micro-CT. Orchidectomy significantly decreased connectivity density, trabecular bone volume, and trabecular number compared to the SHAM group. Testosterone replacement reversed all the orchidectomy-induced changes in the micro-CT parameters. EL at 30 and 60 mg/kg rat worsened the trabecular bone connectivity density and trabecular separation parameters of orchidectomised rats. EL at 90 mg/kg rat preserved the bone volume. High dose of EL (90 mg/kg) may have potential in preserving the bone microarchitecture of orchidectomised rats, but lower doses may further worsen the osteoporotic changes.

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