CClinicalTrials.gg
CompletedNCT01993615Updated Aug 14, 2020Results posted

A Physical Therapy Program Versus Surgery for Femoroacetabular Impingement: Randomized Clinical Trial

An interventional study of Arthroscopic Surgery and Physical Therapy in Femoroacetabular Impingement, sponsored by Madigan Army Medical Center. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2020-08-14.

Sponsored by Madigan Army Medical Center · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 7 months after the study started (first participant enrolled Mar 2013, registered Oct 2013).
Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to compare the outcomes for patients that receive two different treatments used for FAI (Femoroacetabular Impingement). The programs are 1) a 6-week supervised physical therapy program and 2) arthroscopic surgery. Enrollment is limited to patients that have already been determined surgical candidates. The study is following patients for a 2-year period.

Read the detailed description

This study plans to enroll a total of 60 Tricare beneficiaries primarily from the Madigan Healthcare System with a diagnosis of FAI that are surgical candidates and have already failed at least six weeks of conservative treatment.

This is a randomized controlled study comparing outcomes for the standard treatment for FAI and/or acetabular labral pathology (arthroscopy with or without labral repair) versus physical therapy. For subjects in the arthroscopy group, the surgery will be performed by the Orthopedic Surgical Service at Madigan Army Medical Center.

Subjects randomized to the physical therapy group will follow a treatment plan implemented by a physical therapist within the Madigan Army Healthcare System.

After consent, subjects will be randomized into one of two arms (Group I = hip arthroscopy, Group II = physical therapy). Group I will undergo hip arthroscopy with or without labral repair. Group II will follow a FAI-based physical therapy program x 12 sessions (6 weeks).

The arthroscopy group will complete outcome measures at time of consent and following surgery at 6 months, 1 year and 2 year time periods. Subjects in this group will follow a standardized post-operative rehabilitation protocol.

The physical therapy group will complete outcomes measures at time of consent and at 6 month, 1 year and 2 year time periods following the initial physical therapy evaluation. Subjects in this group will complete 6 weeks of an impairment-based physical therapy program.

In addition to the outcome measures taken, healthcare utilization and associated costs for hip-related care during this 2-year period will also calculated for comparison between the 2 groups.

02

Conditions studied

  • Femoroacetabular Impingement

Keywords

  • FAI
  • femoroacetabular impingement
  • hip pain
  • hip arthroscopy
  • physical therapy
03

In context

Femoracetabular Impingement

108 studies on the registry are indexed under Femoracetabular Impingement; 35 are open to participants now.

This study's enrollment of 80 is close to the median of 75 across 63 interventional studies indexed under Femoracetabular Impingement.

Browse Femoracetabular Impingement studies →

Lead sponsor

Madigan Army Medical Center is the lead sponsor of 25 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Tricare beneficiaries between the ages of 18 and 65
  • Diagnosis of FAI and/or labral pathology confirmed by a combination of the following:

    • Pain at the anterior hip or groin
    • Pain with hip flexion
    • Positive FADIR test
    • Patient report relief of pain after intra-articular injection
  • Surgical candidate for hip arthroscopy defined by (must have both):

    • No less than 2 mm of joint space based on imaging (CT scan, radiographs and MR arthrogram)
    • Positive crossover sign and/or alpha angle >50 deg based on imaging (CT scan, radiographs and MR arthrogram)
  • Failed 6 weeks of conservative management

Exclusion criteria

Exclusion Criteria:

  • Pregnancy
  • Has other concurrent systemic disease that may affect the condition (cancer, rheumatoid arthritis, or other systemic arthralgia/arthritis)
  • Has had surgery on the same hip that will be analyzed in the study
  • Diagnosis of hip osteoarthritis is more likely
  • Clearing the lumbar spine reproduces the patient's hip symptoms
  • Plans to move/relocate out of the local area within 6 months
  • Pending litigation for their hip condition
  • Unable to give informed consent to participate in the study
  • Unable to speak or read or write in English (due to inability to fill out outcome measures)
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
80 participants (actual)

Study arms

  • Active comparator
    Arthroscopic Surgery

    Arthroscopic surgery at the femoroacetabular joint, followed by a standardized post-operative rehabilitation protocol in physical therapy.

    Procedure: Arthroscopic Surgery

  • Active comparator
    Physical Therapy

    An impairment-based supervised in-clinic physical therapy program.

    Procedure: Physical Therapy

Interventions

  • ProcedureArthroscopic Surgery

    The hip arthroscopy will consist of acetabular rim trimming, labral repair or debridement and femoroplasty, all as indicated based on the surgeon's clinical judgment with input from pre-operative imaging, exam findings and intra-operative findings.

  • ProcedurePhysical Therapy

    Subjects will participate in two 45-minute sessions for six weeks (total of 12 sessions). The physical therapy treatment plan will be based on individual impairments identified during the initial evaluation, and include manual therapy to the hip, lumbar spine, and pelvis, as well as therapeutic exercise all tailored to individual patient impairments.

06

What researchers measure

Primary outcomes

  1. Hip Outcome Score - ADL Subscale at 24 Months

    The Hip Outcome Score is designed to assess higher-level activities (i.e. those required in athletics) and has demonstrated validity in a study of patients at a mean of three years following hip arthroscopy. Additionally, a 2011 study states that the HOS has the greatest amount of clinimetric evidence (rigor of rating scales and indexes for the description of clinical phenomena). Only three published patient-reported outcome instruments utilized to assess FAI and labral pathology use clinimetric evidence and the HOS was identified as the most proven instrument. The HOS ADL Subscale consisted of 19 questions, each scored on a 5-point scale from 0 (unable to do) to 4 (no difficulty). The final score is calculated by taking the raw score, dividing it by the number of total questions answered multipled by 4 x 100 for a final score that ranges from 0 to 100%, with lower scores associated with greater limitation in Activities of Daily Living (ADL).

    Time frame: 24 months

  2. Hip Outcome Score - Sport Subscale at 24 Months

    The Hip Outcome Score is designed to assess higher level activities (i.e. those required in athletics) and has demonstrated validity in a study of patients at a mean of three years following hip arthroscopy. Additionally, a 2011 study states that the HOS has the greatest amount of clinimetric evidence (rigor of rating scales and indexes for the description of clinical phenomena). Only three published patient-reported outcome instruments utilized to assess FAI and labral pathology use clinimetric evidence and the HOS was identified as the most proven instrument. The HOS Sport Subscale consists of 9 questions, each scored on a 5-point scale from 0 (unable to do) to 4 (no difficulty). The final score is calculated by taking the raw score, dividing it by the number of total questions answered multipled by 4 x 100 for a final score that ranges from 0 to 100%, with lower scores associated with greater limitations in Sports-related activities.

    Time frame: 24 months

Secondary outcomes

  1. Group Differences in International Hip Outcome Score (IHOT33) to 24 Months

    The iHOT33 is a quality-of-life patient-reported outcome measure that uses a visual analog scale response format for young, active patients with hip pathology. This 33-item questionnaire includes four sections: symptoms and functional limitations, sports and recreational activities, job related concerns and social, emotional and lifestyle concerns. This outcome measure has shown to be reliable; shows face, content and contrast validity and is highly responsive to clinical change. It uses a visual analog scale with the verbal anchors "no problems at all" on the far right and "significantly impaired" on the left. The total score is calculated as a simple mean of the responses ranging from 0 to 100, with 100 representing the best possible quality-of-life score.

    Time frame: 24 months

  2. Global Rating of Change Score of 3+ or Higher (Minimum Clinically Important Change)

    The GROC will be administered to patients at the 6 months, one year and two year time points. The GROC questionnaire is a common, feasible, and useful method for assessing short term outcomes and overall changes in quality of life and is a valid measurement of change in patient status in a variety of pain populations. The GROC has a 15-point scale with a change of positive three points or higher (3+) demonstrating clinically significant improvement in a patient's perception of quality of life. Scores of -1 to -7 indicate negative perception of improvement (worsening of condition), a 0 indicates no change, and scores of +1 through +7 indicate a positive perceived improvement in the patients condition.

    Time frame: 24 months

Other outcomes

  1. Self-Motivation Inventory

    The Self-Motivation Inventory is an outcome measure that was developed to determine level of motivation. The Self-Motivation Inventory is a 40-item tool that has been found to measure an individual's tendency to persevere independent of situational reinforcement. It has also been used to predict successful weight loss and may correlate with number of sessions attended in weight loss program \[29\]. This tool underwent refinement in 1980 with the original 60-item tool being tested in undergraduate male and females. Items correlating less than 0.30 were deleted. The final 40-item scale yielded an exceptionally high internal reliability (α = 0.91) suggesting that a unitary common concept is evident for the obtained factor structure. The tool is widely used and has been tested in weight loss and therapeutic exercise studies

    Time frame: Baseline

  2. Changes From Baseline Pain Catastrophizing Scale at 24 Months

    The PCS is a 13-item patient-report scale developed to measure the extent to which people catastrophize in response to pain. Each item is scored from 0 ('not at all') to 4 ('all the time'). The PCS is reported as a total score, with higher scores indicating greater catastrophizing, and is composed of three sub-scales: Rumination (four items; e.g. 'When I am in pain, I keep thinking about how badly I want the pain to stop'), Magnification (three items; e.g. 'When I am in pain, I become afraid that the pain will get worse'), and Helplessness (six items; e.g. 'When I am in pain, I feel I can't go on'). The PCS has been shown to have high levels of internal consistency and construct validity.

    Time frame: 24 months

07

Results

Posted Aug 14, 2020

Participant flow

Recruitment occurred from the orthopaedic clinic at Madigan Army Medical Center

Participant flow — Overall Study
MilestoneArthroscopic SurgeryPhysical Therapy
Started4040
Completed3940
Not completed10
Withdrew: Death10

Outcome measures

PrimaryHip Outcome Score - ADL Subscale at 24 Months

The Hip Outcome Score is designed to assess higher-level activities (i.e. those required in athletics) and has demonstrated validity in a study of patients at a mean of three years following hip arthroscopy. Additionally, a 2011 study states that the HOS has the greatest amount of clinimetric evidence (rigor of rating scales and indexes for the description of clinical phenomena). Only three published patient-reported outcome instruments utilized to assess FAI and labral pathology use clinimetric evidence and the HOS was identified as the most proven instrument. The HOS ADL Subscale consisted of 19 questions, each scored on a 5-point scale from 0 (unable to do) to 4 (no difficulty). The final score is calculated by taking the raw score, dividing it by the number of total questions answered multipled by 4 x 100 for a final score that ranges from 0 to 100%, with lower scores associated with greater limitation in Activities of Daily Living (ADL).

Time frame:
24 months
Reported as:
Least squares mean · score on a scale
Hip Outcome Score - ADL Subscale at 24 Months
score on a scaleArthroscopic SurgeryPhysical Therapy
Hip Outcome Score - ADL Subscale at 24 Months69.3 (62.5 to 76.2)73.1 (66.1 to 80.3)
PrimaryHip Outcome Score - Sport Subscale at 24 Months

The Hip Outcome Score is designed to assess higher level activities (i.e. those required in athletics) and has demonstrated validity in a study of patients at a mean of three years following hip arthroscopy. Additionally, a 2011 study states that the HOS has the greatest amount of clinimetric evidence (rigor of rating scales and indexes for the description of clinical phenomena). Only three published patient-reported outcome instruments utilized to assess FAI and labral pathology use clinimetric evidence and the HOS was identified as the most proven instrument. The HOS Sport Subscale consists of 9 questions, each scored on a 5-point scale from 0 (unable to do) to 4 (no difficulty). The final score is calculated by taking the raw score, dividing it by the number of total questions answered multipled by 4 x 100 for a final score that ranges from 0 to 100%, with lower scores associated with greater limitations in Sports-related activities.

Time frame:
24 months
Reported as:
Least squares mean · score on a scale
Hip Outcome Score - Sport Subscale at 24 Months
score on a scaleArthroscopic SurgeryPhysical Therapy
Hip Outcome Score - Sport Subscale at 24 Months55.3 (46.2 to 64.4)57.1 (47.8 to 66.3)
SecondaryGroup Differences in International Hip Outcome Score (IHOT33) to 24 Months

The iHOT33 is a quality-of-life patient-reported outcome measure that uses a visual analog scale response format for young, active patients with hip pathology. This 33-item questionnaire includes four sections: symptoms and functional limitations, sports and recreational activities, job related concerns and social, emotional and lifestyle concerns. This outcome measure has shown to be reliable; shows face, content and contrast validity and is highly responsive to clinical change. It uses a visual analog scale with the verbal anchors "no problems at all" on the far right and "significantly impaired" on the left. The total score is calculated as a simple mean of the responses ranging from 0 to 100, with 100 representing the best possible quality-of-life score.

Time frame:
24 months
Reported as:
Least squares mean · score on a scale
Group Differences in International Hip Outcome Score (IHOT33) to 24 Months
score on a scaleArthroscopic SurgeryPhysical Therapy
Group Differences in International Hip Outcome Score (IHOT33) to 24 Months51.2 (42.5 to 59.9)44.9 (35.9 to 53.9)
SecondaryGlobal Rating of Change Score of 3+ or Higher (Minimum Clinically Important Change)

The GROC will be administered to patients at the 6 months, one year and two year time points. The GROC questionnaire is a common, feasible, and useful method for assessing short term outcomes and overall changes in quality of life and is a valid measurement of change in patient status in a variety of pain populations. The GROC has a 15-point scale with a change of positive three points or higher (3+) demonstrating clinically significant improvement in a patient's perception of quality of life. Scores of -1 to -7 indicate negative perception of improvement (worsening of condition), a 0 indicates no change, and scores of +1 through +7 indicate a positive perceived improvement in the patients condition.

Time frame:
24 months
Reported as:
Count of participants · Participants
Global Rating of Change Score of 3+ or Higher (Minimum Clinically Important Change)
ParticipantsArthroscopic SurgeryPhysical Therapy
Global Rating of Change Score of 3+ or Higher (Minimum Clinically Important Change)1615
Other pre-specifiedSelf-Motivation Inventory

The Self-Motivation Inventory is an outcome measure that was developed to determine level of motivation. The Self-Motivation Inventory is a 40-item tool that has been found to measure an individual's tendency to persevere independent of situational reinforcement. It has also been used to predict successful weight loss and may correlate with number of sessions attended in weight loss program \[29\]. This tool underwent refinement in 1980 with the original 60-item tool being tested in undergraduate male and females. Items correlating less than 0.30 were deleted. The final 40-item scale yielded an exceptionally high internal reliability (α = 0.91) suggesting that a unitary common concept is evident for the obtained factor structure. The tool is widely used and has been tested in weight loss and therapeutic exercise studies

Time frame:
Baseline

Results for this outcome have not been posted.

Other pre-specifiedChanges From Baseline Pain Catastrophizing Scale at 24 Months

The PCS is a 13-item patient-report scale developed to measure the extent to which people catastrophize in response to pain. Each item is scored from 0 ('not at all') to 4 ('all the time'). The PCS is reported as a total score, with higher scores indicating greater catastrophizing, and is composed of three sub-scales: Rumination (four items; e.g. 'When I am in pain, I keep thinking about how badly I want the pain to stop'), Magnification (three items; e.g. 'When I am in pain, I become afraid that the pain will get worse'), and Helplessness (six items; e.g. 'When I am in pain, I feel I can't go on'). The PCS has been shown to have high levels of internal consistency and construct validity.

Time frame:
24 months

Results for this outcome have not been posted.

Adverse events

Collected over 2 years. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Arthroscopic Surgery1/40 (2.5%)0/40 (0%)2/40 (5%)
Physical Therapy0/40 (0%)0/40 (0%)2/40 (5%)
Most frequent other events
Most frequent other events
EventArthroscopic SurgeryPhysical Therapy
Surgical complicationInjury, poisoning and procedural complications2/402/40

Baseline characteristics

Age, Continuous
Age, Continuous(years)Arthroscopic SurgeryPhysical TherapyTotal
Mean29.7 ± 7.430.6 ± 7.430.1 ± 7.4
Sex: Female, Male
Sex: Female, Male(Participants)Arthroscopic SurgeryPhysical TherapyTotal
Female191433
Male212647
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Arthroscopic SurgeryPhysical TherapyTotal
American Indian or Alaska Native101
Asian246
Native Hawaiian or Other Pacific Islander213
Black or African American549
White302858
More than one race000
Unknown or Not Reported033
08

Study locations

1 site
  • Madigan Army Medical Center
    Tacoma, Washington 98431, United States
09

References and documents

Publications

  • Mansell NS, Rhon DI, Meyer J, Slevin JM, Marchant BG. Arthroscopic Surgery or Physical Therapy for Patients With Femoroacetabular Impingement Syndrome: A Randomized Controlled Trial With 2-Year Follow-up. Am J Sports Med. 2018 May;46(6):1306-1314. doi: 10.1177/0363546517751912. Epub 2018 Feb 14. PubMed 29443538 ↗
  • Mansell NS, Rhon DI, Marchant BG, Slevin JM, Meyer JL. Two-year outcomes after arthroscopic surgery compared to physical therapy for femoracetabular impingement: A protocol for a randomized clinical trial. BMC Musculoskelet Disord. 2016 Feb 4;17:60. doi: 10.1186/s12891-016-0914-1. PubMed 26846934 ↗

Individual participant data

Plan to share: Yes — Any data sharing must go through a Data Sharing Agreement approved by the US Defense Health Agency

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 14, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01993615
Lead sponsor
Madigan Army Medical Center
Responsible party
Dan Rhon (Director of Physical Therapy, Department of PM&R, Madigan Army Medical Center) — Principal investigator
First posted
Nov 25, 2013
Start date
Mar 2013
Primary completion
Jul 2016
Completion
Oct 2016
Results posted
Aug 14, 2020
Last update
Aug 14, 2020

Study contacts

Nancy Mansell, PT, DPT
principal investigator · Madigan Army Medical Center
Daniel Rhon, DPT, DSc
study chair · Madigan Army Medical Center

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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