Arthroscopic surgical procedures versus sham surgery for patients with femoroacetabular impingement and/or labral tears : Study protocol for a randomized controlled trial (HIPARTI) and a prospective cohort study (HARP)
STUDY DESIGN: Study protocol for a randomized controlled trial and a prospective cohort. BACKGROUND: The number of arthroscopic surgical procedures for patients with femoroacetabular impingement syndrome (FAIS) has significantly increased worldwide, but high-quality evidence of the effect of such interventions is lacking. OBJECTIVES: The primary objective will be to determine the efficacy of hip a