Prospective Study Deltamotion - DAA THA Study

"* Time interval: pre-op - 3m - 6m - 12m~* Assessment of all subjects:~ * XR~ * Gait analysis with surface EMG and trunk markers:~ * Unipodal standing: 3 trials Right and 3 trials Left on FP~ * Level walking: 3 trials Right and 3 trials Left on FP~ * Chair rise: 3 trials, both legs on FP~ * Stair ascent: 3 trials Right and 3 trials Left on first FP~ * Stair descent: 3 trials Right and 3 trials Left on first FP~ * Squat: 3 trials, both legs on FP~ * Bipodal squat: 3 trials Right and 3 trials Left on FP~* Functional scores (HHS, UCLA, HOOS, SF-36)"