Three-dimensional dynamic hip contact area and pressure distribution during activities of daily living

H. Yoshida, A. Faust, John H Wilckens, M. Kitagawa, J. Fetto, Edmund Y S Chao

Research output: Contribution to journalArticle

Abstract

Estimation of the hip joint contact area and pressure distribution during activities of daily living is important in predicting joint degeneration mechanism, prosthetic implant wear, providing biomechanical rationales for preoperative planning and postoperative rehabilitation. These biomechanical data were estimated utilizing a generic hip model, the Discrete Element Analysis technique, and the in vivo hip joint contact force data. The three-dimensional joint potential contact area was obtained from the anteroposterior radiograph of a subject and the actual joint contact area and pressure distribution in eight activities of daily living were calculated. During fast, normal, and slow walking, the peak pressure of moderate magnitude was located at the lateral roof of the acetabulum during mid-stance. In standing up and sitting down, and during knee bending, the peak pressures were located at the edge of the posterior horn and the magnitude of the peak pressure during sitting down was 2.8 times that of normal walking. The peak pressure was found at the lateral roof in climbing up stairs which was higher than that in going down stairs. These results can be used to rationalize rehabilitation protocols, functional restrictions after complex acetabular reconstructions, and prosthetic component wear and fatigue test set up. The same model and analysis can provide further insight to soft tissue loading and pathology such as labral injury. When the pressure distribution on the acetabulum is inverted onto the femoral head, prediction of subchondral bone collapse associated with avascular necrosis can be achieved with improved accuracy.

Original languageEnglish (US)
Pages (from-to)1996-2004
Number of pages9
JournalJournal of Biomechanics
Volume39
Issue number11
DOIs
StatePublished - 2006

Fingerprint

Activities of Daily Living
Pressure distribution
Hip
Pressure
Stairs
Patient rehabilitation
Roofs
Wear of materials
Acetabulum
Joints
Hip Joint
Pathology
Walking
Prosthetics
Rehabilitation
Bone
Fatigue of materials
Tissue
Planning
Horns

Keywords

  • Activities of daily living
  • Discrete element analysis
  • Hip contact area
  • Hip contact pressure
  • Hip wear

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Three-dimensional dynamic hip contact area and pressure distribution during activities of daily living. / Yoshida, H.; Faust, A.; Wilckens, John H; Kitagawa, M.; Fetto, J.; Chao, Edmund Y S.

In: Journal of Biomechanics, Vol. 39, No. 11, 2006, p. 1996-2004.

Research output: Contribution to journalArticle

Yoshida, H. ; Faust, A. ; Wilckens, John H ; Kitagawa, M. ; Fetto, J. ; Chao, Edmund Y S. / Three-dimensional dynamic hip contact area and pressure distribution during activities of daily living. In: Journal of Biomechanics. 2006 ; Vol. 39, No. 11. pp. 1996-2004.
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