Ankle Osteoarthritis Clinical Trial
Official title:
Efficacity of a Rigid Ankle Foot Orthosis for Persons With Ankle Osteoarthritis
Ankle osteoarthritis (AOA) is a typical long-term complication of an ankle injury. Pain
during walking is the main symptom that limits walking distance. Non-surgical treatments
could be used to decrease pain. The gold standard treatment for end-stage OA is definitive
surgical ankle arthrodesis.
The purpose of this study was to assess the effectiveness of a rigid ankle-foot orthosis
(R-AFO) for walking pain in a population suffering from AOA.
This study used the SCED introduction/withdrawal methodology to assess the efficacy of R-AFO
on pain and walking distance in the 2-minute walk test (2MWT). Each patient is his or her own
comparator. During phase A, considered as the baseline, the patient performs the 2MWT without
R-AFO. During phases B, considered as the introduction phases, the patient performs the tests
with R-AFO. These tests are performed repeatedly and at regular intervals. The time of
transition between phases has been randomized to have a minimum of 3 trials per phase.
At the end of each test, an visual analogue scale for the pain and the walking distance
travelled during the 2MWT were recorded.
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