caa a22 4500 605539510 CHVBK 20210128100907.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s10396-014-0608-y doi (NATIONALLICENCE)springer-10.1007/s10396-014-0608-y Elastic modulus of the femoral trochanteric region measured by scanning acoustic microscopy in elderly women [Elektronische Daten] [Hiroyuki Matsuki, Junichi Shibano, Michiaki Kobayashi, Yukio Nakatsuchi, Tetsuji Moriizumi, Hiroyuki Kato] Purpose: We have devised a method that can obtain continuous detailed distributions of the elastic modulus along the measurement line in a non-decalcified specimen of human bone tissue. The aim of this study was to determine whether local variations exist in the distribution of mechanical properties within the trochanteric region of the femur of elderly females using a newly developed form of scanning acoustic microscopy (SAM) technology. Methods: Human proximal femurs were harvested from seven female cadavers aged between 67 and 88years at death. Using data collected with SAM, the elastic modulus of cortical and trabecular bone tissue of the lateral and medial trochanter was calculated and statistically analyzed. Results: The longitudinal and transverse elastic moduli in cortical bone tissue of the lateral trochanter were found to be significantly lower than those of the medial trochanter in all specimens from individuals over age 70 (p<0.05). Compared to that of the distal region, the longitudinal and transverse elastic moduli of trabecular bone tissue of the proximal region of the lateral trochanter were significantly lower in all specimens from individuals over age 80 (p<0.05). Conclusion: Our new method allows obtaining detailed distributions of the elastic modulus of bone tissue. The Japan Society of Ultrasonics in Medicine, 2015 Scanning acoustic microscopy nationallicence Elastic modulus nationallicence Bone tissue nationallicence Trochanter nationallicence Matsuki Hiroyuki Department of Orthopaedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Shibano Junichi Department of Mechanical Engineering, Kitami Institute of Technology, 165 Koen-cho, 090-8507, Kitami, Hokkaido, Japan aut Kobayashi Michiaki Department of Mechanical Engineering, Kitami Institute of Technology, 165 Koen-cho, 090-8507, Kitami, Hokkaido, Japan aut Nakatsuchi Yukio Department of Orthopaedic Surgery, Marunouchi Hospital, 1-7-45 Nagisa, 390-8601, Matsumoto, Nagano, Japan aut Moriizumi Tetsuji Department of Anatomy, Shinshu University School of Medicine, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Kato Hiroyuki Department of Orthopaedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut Journal of Medical Ultrasonics Springer Japan 42/3(2015-07-01), 303-313 1346-4523 42:3<303 2015 42 10396 https://doi.org/10.1007/s10396-014-0608-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10396-014-0608-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Matsuki Hiroyuki Department of Orthopaedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Shibano Junichi Department of Mechanical Engineering, Kitami Institute of Technology, 165 Koen-cho, 090-8507, Kitami, Hokkaido, Japan aut NATIONALLICENCE 700 1- Kobayashi Michiaki Department of Mechanical Engineering, Kitami Institute of Technology, 165 Koen-cho, 090-8507, Kitami, Hokkaido, Japan aut NATIONALLICENCE 700 1- Nakatsuchi Yukio Department of Orthopaedic Surgery, Marunouchi Hospital, 1-7-45 Nagisa, 390-8601, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Moriizumi Tetsuji Department of Anatomy, Shinshu University School of Medicine, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 700 1- Kato Hiroyuki Department of Orthopaedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, 390-8621, Matsumoto, Nagano, Japan aut NATIONALLICENCE 773 0- Journal of Medical Ultrasonics Springer Japan 42/3(2015-07-01), 303-313 1346-4523 42:3<303 2015 42 10396