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)

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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 arthroscopic procedures compared to sham surgery on patient-reported outcomes for patients with FAIS (HIP ARThroscopy International [HIPARTI] Study). The secondary objective will be to evaluate prognostic factors for long-term outcome after arthroscopic surgical interventions in patients with FAIS (Hip ARthroscopy Prospective [HARP] Study). METHODS: The HIPARTI Study will include 140 patients and the HARP Study will include 100 patients. The international Hip Outcome Tool-33 will be the primary outcome measure at 1 year. Secondary outcome measures will be the Hip disability and Osteoarthritis Outcome Score, Arthritis Self-Efficacy Scale, fear of movement (Tampa Scale of Kinesiophobia), Patient-Specific Functional Scale, global rating of change score, and expectations. Other outcomes will include active hip range of motion, hip muscle strength tests, functional performance tests, as well as radiological assessments using radiographs and magnetic resonance imaging. CONCLUSION: To determine the true effect of surgery, beyond that of placebo, double-blinded placebo-controlled trials including sham surgery are needed. The HIPARTI Study will direct future evidence-based treatment of FAIS. Predictors for long-term development and progression of degenrative changes in the hip are also needed for this young patient group with FAIS; hence, responders and nonresponders to treatment could be determined.


  • May Arna Risberg
  • Eva Ageberg
  • Agnethe Nilstad
  • Bent Lund
  • Lars Nordsletten
  • Sverre LØken
  • Tom Ludvigsen
  • Signe Kierkegaard
  • Sasha Carsen
  • Ioannis Kostogiannis
  • Kay M. Crossley
  • Sion Glyn-Jones
  • Joanne L. Kemp
Enheter & grupper
Externa organisationer
  • Oslo university hospital
  • Norwegian School of Sport Sciences
  • University of Oslo
  • Children's Hospital of Eastern Ontario
  • La Trobe University
  • University of Oxford
  • Horsens Sygehus
  • Skåne University Hospital

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Idrottsvetenskap
  • Ortopedi


Sidor (från-till)325-335
Antal sidor11
TidskriftJournal of Orthopaedic and Sports Physical Therapy
Utgåva nummer4
StatusPublished - 2018 apr 1
Peer review utfördJa

Related projects

Eva Ageberg, Ioannis Kostogiannis, Anders Pålsson, May Arna Risberg, Joanne Kemp, Agnethe Nilstad, Lars Nordsletten, Sverre Løken, Tom Ludvigsen & Kay M Crossley


Projekt: ForskningInternationellt samarbete

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