The study consists to evaluate the impact of prosthetic surgery (PTH and RTH) on kinematic and dynamic parameters (joint torques) of the lower limbs during gait initiation in patients with primary coxarthrosis.
Patients included in the study will undergo a three-dimensional gait analysis. Dynamic gait analysis is multidimensional, measuring kinematic parameters (joint amplitudes: ankles, knees, hips, etc.) and dynamic parameters (assessment of joint torque from ankle, knee, hip to lower limb during gait initiation).
Men or women aged 18 and over
With primary coxarthrosis (any stage)
Consulting in the orthopedic departments of participating centers in anticipation of hip surgery (PTH/RTH), or for advice only.
Written consent signed by the patient
Pregnant or breast-feeding
Adults under guardianship, curatorship or safeguard of justice
Cognitive impairment making it impossible to understand the protocol
Approach other than Moore posterolateral (for PTH and RTH groups)