Mechanical properties of normal and pathological human patella

Yoshio Shirasaki, Tetsuya Tateishi, Toru Fukubayashi, Seidai Tomobe

Research output: Contribution to journalArticle

Abstract

In order to understand the mechanical properties of human patella, regional differences of viscoelasticity and compressive strength have been investigated in normal and pathological human patella by viscoelastic spectrometer and a testing machine of the Instron type. In the normal human patella cancellous bone, the averaged compressive elastic modulus at the lateral side was 417.2 MPa and that at the medial side was 243.3 MPa. Comparing normal and pathological patella, we find that the normal patella stiffness and tan δ value were higher than the pathological ones. This fact implies that the normal patella is stiffened as a result of functional adaption.

Original languageEnglish
Pages (from-to)2021-2025
Number of pages5
JournalNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume56
Issue number529
Publication statusPublished - 1990 Sep
Externally publishedYes

Fingerprint

Viscoelasticity
Compressive strength
Spectrometers
Bone
Elastic moduli
Stiffness
Mechanical properties
Testing

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Mechanical properties of normal and pathological human patella. / Shirasaki, Yoshio; Tateishi, Tetsuya; Fukubayashi, Toru; Tomobe, Seidai.

In: Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 56, No. 529, 09.1990, p. 2021-2025.

Research output: Contribution to journalArticle

Shirasaki, Yoshio ; Tateishi, Tetsuya ; Fukubayashi, Toru ; Tomobe, Seidai. / Mechanical properties of normal and pathological human patella. In: Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A. 1990 ; Vol. 56, No. 529. pp. 2021-2025.
@article{1ba9321a000d4ffb9226ad11d8fcccda,
title = "Mechanical properties of normal and pathological human patella",
abstract = "In order to understand the mechanical properties of human patella, regional differences of viscoelasticity and compressive strength have been investigated in normal and pathological human patella by viscoelastic spectrometer and a testing machine of the Instron type. In the normal human patella cancellous bone, the averaged compressive elastic modulus at the lateral side was 417.2 MPa and that at the medial side was 243.3 MPa. Comparing normal and pathological patella, we find that the normal patella stiffness and tan δ value were higher than the pathological ones. This fact implies that the normal patella is stiffened as a result of functional adaption.",
author = "Yoshio Shirasaki and Tetsuya Tateishi and Toru Fukubayashi and Seidai Tomobe",
year = "1990",
month = "9",
language = "English",
volume = "56",
pages = "2021--2025",
journal = "Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A",
issn = "0387-5008",
publisher = "Japan Society of Mechanical Engineers",
number = "529",

}

TY - JOUR

T1 - Mechanical properties of normal and pathological human patella

AU - Shirasaki, Yoshio

AU - Tateishi, Tetsuya

AU - Fukubayashi, Toru

AU - Tomobe, Seidai

PY - 1990/9

Y1 - 1990/9

N2 - In order to understand the mechanical properties of human patella, regional differences of viscoelasticity and compressive strength have been investigated in normal and pathological human patella by viscoelastic spectrometer and a testing machine of the Instron type. In the normal human patella cancellous bone, the averaged compressive elastic modulus at the lateral side was 417.2 MPa and that at the medial side was 243.3 MPa. Comparing normal and pathological patella, we find that the normal patella stiffness and tan δ value were higher than the pathological ones. This fact implies that the normal patella is stiffened as a result of functional adaption.

AB - In order to understand the mechanical properties of human patella, regional differences of viscoelasticity and compressive strength have been investigated in normal and pathological human patella by viscoelastic spectrometer and a testing machine of the Instron type. In the normal human patella cancellous bone, the averaged compressive elastic modulus at the lateral side was 417.2 MPa and that at the medial side was 243.3 MPa. Comparing normal and pathological patella, we find that the normal patella stiffness and tan δ value were higher than the pathological ones. This fact implies that the normal patella is stiffened as a result of functional adaption.

UR - http://www.scopus.com/inward/record.url?scp=0025488795&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025488795&partnerID=8YFLogxK

M3 - Article

VL - 56

SP - 2021

EP - 2025

JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

SN - 0387-5008

IS - 529

ER -