scholarly journals Transmenopausal Changes in Trabecular Bone Quality

2014 ◽  
Vol 29 (3) ◽  
pp. 608-617 ◽  
Author(s):  
Sonja Gamsjaeger ◽  
Wolfgang Brozek ◽  
Robert Recker ◽  
Klaus Klaushofer ◽  
Eleftherios P Paschalis
Keyword(s):  
Trabecular Bone ◽  
Bone Quality ◽  
Trabecular Bone Quality

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

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.

Devastation of adult stem cell pools by irradiation precedes collapse of trabecular bone quality and quantity

2012 ◽  
Vol 27 (4) ◽  
pp. 749-759 ◽  
Author(s):  
Danielle E Green ◽  
Benjamin J Adler ◽  
Meilin E Chan ◽  
Clinton T Rubin
Keyword(s):  
Stem Cell ◽  
Trabecular Bone ◽  
Bone Quality ◽  
Adult Stem Cell ◽  
Trabecular Bone Quality
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