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Completed

NCT Number: NCT05031390

the Horsens Aarhus FemoroAcetabular Impingement Syndrome Training Pilot Study

The aim of the study is to investigate the feasibility of a training intervention in patients with femoroacetabular impingement syndrome (FAIS).

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Key information

Conditions

Femoroacetabular Impingement Femoracetabular Impingement Joint Diseases Musculoskeletal Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms

Age range

18 year–50 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Signe Kierkegaard

Horsens, Danmark, DK-8700, Denmark

About this study

The aim of this study is to investigate the feasibility of a 12-weeks (progressive) exercise program in patients with FAIS. Feasibility is evaluated on the recruitment strategy, patient adherence to the exercises and their experiences with and motivation for performing exercises. Furthermore, the investigators wish to investigate the variation of data before and after the exercise program to help estimate a suitable sample size for a future randomized controlled trial.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients aged 18-50 years old
  • Diagnosed with FAIS according to the Warwick agreement
  • Patients having cam morphology should have an alpha angle of > 55 degrees on an anterior-posterior radiograph.
  • Patients having pincer should have a lateral centre edge angle of >39 degrees on an anterior-posterior radiograph.
  • Lateral joint space width should be >3 mm.
  • Body mass index is below 30.
  • Motivated for participation in a 12 week training program with 8 physical attendances.

Exclusion criteria

  • Received physiotherapist-led treatment in the past 3 months,
  • Previous hip surgery in included hip or other major hip injury,
  • Systemic conditions e.g. rheumatoid arthritis, cancer,
  • Chronical pain syndromes,
  • Unable to perform testing procedures,
  • Unable to attend a 12-week treatment program or baseline and follow-up assessments
  • Contraindications to radiographs (e.g. pregnancy)
  • Unable to read or understand questionnaires and/or instructions

Treatment and study plan

Physiotherapist-led training

Procedure

Patients will undergo a 12-week physiotherapist-led training program consisting of 8 supervised sessions and home-based training in between

Primary outcomes

  1. Number of completed exercise sessions

    Time frame: 0-12 weeks

    Number of completed exercise sessions. A high adherence is defined as attendance of > 75% of planned sessions

  2. Completion of training program

    Time frame: 0-12 weeks

    The training program is considered completed if patients are not dropping out of the study before the end of the 12 weeks. Completion rate will be calculated as % patients who completed the study

Secondary outcomes

  1. The Copenhagen Hip and Groin Outcome Score (HAGOS)

    Time frame: Change from 0-12 weeks

    HAGOS is a questionnaire developed for young, active persons experiencing hip and/or groin pain. It consists of 6 subscales: Pain, Symptoms, Activities of Daily Living, Sport, Participation in Sport and Hip-related quality of life. The main subscales used in this study are HAGOS pain and sport.

  2. The International Hip Outcome Tool (iHOT-33)

    Time frame: Change from 0-12 weeks

    iHOT-33 is a questionnaire focussing at patients' hip related quality of life in 33 questions. Both a total score and sub scales: "Symptoms and functional limitations", "Sports and recreational activities", "Job related concerns" and "Social, emotional and lifestyle concerns", are extracted from the questionnaire.

  3. The Hip Sports Activity Scale (HSAS)

    Time frame: Change from 0-12 weeks

    Current physical activity measured from 0 to 8 points, 0 being no activity and 8 being an athlete

  4. Maximal hip muscle strength

    Time frame: Change from 0-12 weeks

    Change (Nm/kg) in maximal hip flexion, extension, abduction and adduction from 0-12 weeks

  5. One-legged hop for distance

    Time frame: 0-12 weeks

    Change (cm) i hop distance from 0-12 weeks

  6. Y-balance board

    Time frame: 0-12 weeks

    Change (cm) in ability to perform on the y balance board from 0-12 weeks

  7. Patient Acceptable Symptom State

    Time frame: 0-12 weeks

    Patient Acceptable Symptom State (yes/no): Change in number of patients reporting yes vs. no from baseline to 12 weeks

Sponsors and collaborators

Lead sponsor

Horsens Hospital

Other

Collaborators

  • La Trobe University
  • University of Aarhus

Registry information

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
Sep 1, 2021
Registry last updated
Aug 3, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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