The objective is to observe the evolution of walking parameters during the surgery process and find which of all calculated walking parameters represent the best indicators of functional disabilities and postoperative recovery for patient with lumbar spinal stenosis.
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Change from baseline French-Canadian adaptation of Swiss Spinal Stenosis Questionnaires (FC-SSSQ)
Timeframe: Baseline, 6 weeks post-surgery, 6 months post-surgery
Change from baseline Quality of life (EuroQol - 5D)
Timeframe: Baseline, 6 weeks post-surgery, 6 months post-surgery
Change from baseline International Physical Activity Questionnaire (IPAQ)
Timeframe: Baseline, 6 weeks post-surgery, 6 months post-surgery
Change from baseline Walking time
Timeframe: Baseline, 6 weeks post-surgery
Change from baseline Walking speed
Timeframe: Baseline, 6 weeks post-surgery
Change from baseline Gait cycle
Timeframe: Baseline, 6 weeks post-surgery
Change from baseline Stride length
Timeframe: Baseline, 6 weeks post-surgery