Evaluation of an ambulatory system for gait analysis in hip osteoarthritis and after total hip replacement

K. Aminian, C. Trevisan, Bijan Najafi, H. Dejnabadi, C. Frigo, E. Pavan, A. Telonio, F. Cerati, E. C. Marinoni, Ph Robert, P. F. Leyvraz

Research output: Contribution to journalArticle

108 Citations (Scopus)

Abstract

Spatial and temporal parameters of gait have clinical relevance in the assessment of motor pathologies, particularly in orthopaedics. A new gait analysis system is proposed which consists of (a) an ambulatory device (Physilog®) including a set of miniature gyroscopes and a portable datalogger, and (b) an algorithm for gait analysis. The aim of this study was the validation of this system, for accuracy and clinical applicability. Eleven patients with coxarthrosis, eight patients with total hip arthroplasty and nine control subjects were studied using this portable system and also a reference motion analyzer and force plate. The small differences in the stance period (19±31 ms), stride length and velocity (0.4±9.6 cm and 2.5±8.3 cm/s, respectively), as well as thigh and shank rotations (2.4±4.3° and 0.3±3.3°, respectively), confirmed good agreement of the proposed system with the reference system. In addition, nearly the same accuracy was obtained for all three groups. Gait analysis based on Physilog® was also in agreement with their Harris Hip Scores (HHS): the subjects with lower scores had a greater limp, a slower walking speed and a shorter stride. This ambulatory gait analysis system provides an easy, reproducible and objective method of quantifying changes in gait after joint replacement surgery for coxarthrosis.

Original languageEnglish (US)
Pages (from-to)102-107
Number of pages6
JournalGait and Posture
Volume20
Issue number1
DOIs
StatePublished - Aug 2004
Externally publishedYes

Fingerprint

Hip Osteoarthritis
Hip Replacement Arthroplasties
Gait
Hip
Replacement Arthroplasties
Validation Studies
Thigh
Arthroplasty
Orthopedics
Pathology
Equipment and Supplies

Keywords

  • Ambulatory system
  • Force plate
  • Gait analysis
  • Gyroscope
  • Hip osteoarthritis

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Evaluation of an ambulatory system for gait analysis in hip osteoarthritis and after total hip replacement. / Aminian, K.; Trevisan, C.; Najafi, Bijan; Dejnabadi, H.; Frigo, C.; Pavan, E.; Telonio, A.; Cerati, F.; Marinoni, E. C.; Robert, Ph; Leyvraz, P. F.

In: Gait and Posture, Vol. 20, No. 1, 08.2004, p. 102-107.

Research output: Contribution to journalArticle

Aminian, K, Trevisan, C, Najafi, B, Dejnabadi, H, Frigo, C, Pavan, E, Telonio, A, Cerati, F, Marinoni, EC, Robert, P & Leyvraz, PF 2004, 'Evaluation of an ambulatory system for gait analysis in hip osteoarthritis and after total hip replacement', Gait and Posture, vol. 20, no. 1, pp. 102-107. https://doi.org/10.1016/S0966-6362(03)00093-6
Aminian, K. ; Trevisan, C. ; Najafi, Bijan ; Dejnabadi, H. ; Frigo, C. ; Pavan, E. ; Telonio, A. ; Cerati, F. ; Marinoni, E. C. ; Robert, Ph ; Leyvraz, P. F. / Evaluation of an ambulatory system for gait analysis in hip osteoarthritis and after total hip replacement. In: Gait and Posture. 2004 ; Vol. 20, No. 1. pp. 102-107.
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