the contact area and pressure distribution pattern of the knee: A study of normal and osteoarthrotic knee joints

Toru Fukubayashi, Hlsashi Kurosawa

Research output: Contribution to journalArticle

576 Citations (Scopus)

Abstract

Seven knees were studied to determine the contact area and pressure distribution of the tibiofemoral joint, under various loads and at 0° flexion, using the casting method and special sensor sheets. At a load of 1000N (Newton) the contact area of the knee was 11.5 × lCmm2 with menisci and 5.2 × lCmm2 without menisci, and the menisci occupied 70 per cent of the total contact area. Peak pressure at 1000N was 3MPa (Mega Pascal) with the menisci and 6MPa without them. the high pressure areas were located on the lateral meniscus as well as on the uncovered part of the articular cartilage of the lateral compartment, and on the uncovered cartilage in the medial compartment. After removal of the menisci the contact area decreased to below one half that of the intact knee and the contact pressure considerably increased. These facts imply that the menisci have load bearing and load spreading functions. the contact areas were also measured in two osteoarthrotic knees and they were significantly larger than those in normal knees. in these arthrotic knees the menisci seemed to play a less significant role in transmission of weight than in the normal knees.

Original languageEnglish
Pages (from-to)871-879
Number of pages9
JournalActa Orthopaedica
Volume51
Issue number1-6
DOIs
Publication statusPublished - 1980
Externally publishedYes

Fingerprint

Knee Joint
Knee
Pressure
Tibial Meniscus
Weight-Bearing
Articular Cartilage
Meniscus
Cartilage
Joints
Weights and Measures

Keywords

  • Contact area
  • Knee joint
  • Meniscus
  • Pressure distribution

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

the contact area and pressure distribution pattern of the knee : A study of normal and osteoarthrotic knee joints. / Fukubayashi, Toru; Kurosawa, Hlsashi.

In: Acta Orthopaedica, Vol. 51, No. 1-6, 1980, p. 871-879.

Research output: Contribution to journalArticle

@article{7a1637ef817f4a89a13c78dd7269fc57,
title = "the contact area and pressure distribution pattern of the knee: A study of normal and osteoarthrotic knee joints",
abstract = "Seven knees were studied to determine the contact area and pressure distribution of the tibiofemoral joint, under various loads and at 0° flexion, using the casting method and special sensor sheets. At a load of 1000N (Newton) the contact area of the knee was 11.5 × lCmm2 with menisci and 5.2 × lCmm2 without menisci, and the menisci occupied 70 per cent of the total contact area. Peak pressure at 1000N was 3MPa (Mega Pascal) with the menisci and 6MPa without them. the high pressure areas were located on the lateral meniscus as well as on the uncovered part of the articular cartilage of the lateral compartment, and on the uncovered cartilage in the medial compartment. After removal of the menisci the contact area decreased to below one half that of the intact knee and the contact pressure considerably increased. These facts imply that the menisci have load bearing and load spreading functions. the contact areas were also measured in two osteoarthrotic knees and they were significantly larger than those in normal knees. in these arthrotic knees the menisci seemed to play a less significant role in transmission of weight than in the normal knees.",
keywords = "Contact area, Knee joint, Meniscus, Pressure distribution",
author = "Toru Fukubayashi and Hlsashi Kurosawa",
year = "1980",
doi = "10.3109/17453678008990887",
language = "English",
volume = "51",
pages = "871--879",
journal = "Acta Orthopaedica",
issn = "1745-3674",
publisher = "Informa Healthcare",
number = "1-6",

}

TY - JOUR

T1 - the contact area and pressure distribution pattern of the knee

T2 - A study of normal and osteoarthrotic knee joints

AU - Fukubayashi, Toru

AU - Kurosawa, Hlsashi

PY - 1980

Y1 - 1980

N2 - Seven knees were studied to determine the contact area and pressure distribution of the tibiofemoral joint, under various loads and at 0° flexion, using the casting method and special sensor sheets. At a load of 1000N (Newton) the contact area of the knee was 11.5 × lCmm2 with menisci and 5.2 × lCmm2 without menisci, and the menisci occupied 70 per cent of the total contact area. Peak pressure at 1000N was 3MPa (Mega Pascal) with the menisci and 6MPa without them. the high pressure areas were located on the lateral meniscus as well as on the uncovered part of the articular cartilage of the lateral compartment, and on the uncovered cartilage in the medial compartment. After removal of the menisci the contact area decreased to below one half that of the intact knee and the contact pressure considerably increased. These facts imply that the menisci have load bearing and load spreading functions. the contact areas were also measured in two osteoarthrotic knees and they were significantly larger than those in normal knees. in these arthrotic knees the menisci seemed to play a less significant role in transmission of weight than in the normal knees.

AB - Seven knees were studied to determine the contact area and pressure distribution of the tibiofemoral joint, under various loads and at 0° flexion, using the casting method and special sensor sheets. At a load of 1000N (Newton) the contact area of the knee was 11.5 × lCmm2 with menisci and 5.2 × lCmm2 without menisci, and the menisci occupied 70 per cent of the total contact area. Peak pressure at 1000N was 3MPa (Mega Pascal) with the menisci and 6MPa without them. the high pressure areas were located on the lateral meniscus as well as on the uncovered part of the articular cartilage of the lateral compartment, and on the uncovered cartilage in the medial compartment. After removal of the menisci the contact area decreased to below one half that of the intact knee and the contact pressure considerably increased. These facts imply that the menisci have load bearing and load spreading functions. the contact areas were also measured in two osteoarthrotic knees and they were significantly larger than those in normal knees. in these arthrotic knees the menisci seemed to play a less significant role in transmission of weight than in the normal knees.

KW - Contact area

KW - Knee joint

KW - Meniscus

KW - Pressure distribution

UR - http://www.scopus.com/inward/record.url?scp=0019256214&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0019256214&partnerID=8YFLogxK

U2 - 10.3109/17453678008990887

DO - 10.3109/17453678008990887

M3 - Article

C2 - 6894212

AN - SCOPUS:0019256214

VL - 51

SP - 871

EP - 879

JO - Acta Orthopaedica

JF - Acta Orthopaedica

SN - 1745-3674

IS - 1-6

ER -