Rheumatology Medical News about Hip brace, Osteoarthritis, Gait

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Biomechanical analysis of gait in patients with painful osteoarthritis of the hip treated with WISH-type hip brace
Journal of Orthopaedic Science, 08/12/09

Yamaji T et al. – The biomechanical assessments suggest that abnormal gait in hip osteoarthritis (OA) may be closer to normal gait in patients using WISH-type hip brace, although the deceleration and weighing-off effects, which are indicators useful for observing gait recovery, did not reach significance.

Methods

An evaluation of the biomechanical effects of the brace, gait analysis using a force plate in improving hip function scores in pts with painful hip OA
For the gait of 7 pts with this hip brace, characteristic parameters calculated from 3-dimensional (i.e., vertical, forward, and medial) components of the floor reaction force were analyzed using a flat force plate

Results

Gait analyses revealed several tendencies:
- A shorter time for one step
- A stronger step, and
- Shift of the center of gravity of the body to the contralateral side
In particular:
- Stronger vertical reaction force at the first peak in the early stance, and
- Earlier switch from backward to forward reaction force vectors
  were observed as effects of the hip brace, with statistically significant difference

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