Biomechanical Assessment of Femoroacetabular Impingement

NCT01575964 | Enrolling By Invitation

• 1 other identifier: 51053
• Study Type: observational
• Target: 36
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to determine the influence of FAI abnormalities on hip joint biomechanics.

Conditions

Femoro Acetabular Impingement

Outcome Measures

Primary Outcomes (1)

• Data Collection

  We will calculate hip joint kinematics. Statistical analysis of the results will allow comparisons between normal and FAI subjects.

  Follow-up Visit

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Normal subjects and subjects with femoroacetabular impingement.

You may qualify if:

• Patients who present with hip pain subsequently diagnosed as femoroacetabular impingement
• Subjects who meet the following radiographic criterion of cam or pincer FAI, will be given the opportunity to volunteer in this study.
• Subjects that demonstrate a cross-over-sign or a lateral center edge angle (LCEA) without an alpha angle, will be classified as having pincer FAI.
• Subjects with an alpha angle, without a cross-over sign or LCEA, will be categorized as having cam type FAI.
• Finally, with at least one cam (alpha angle) and pincer sign "cross-over-sign or a lateral center edge angle (LCEA)" will be classified as mixed FAI.
• controls will consist of volunteers in the same age range as the subject groups (18-35 years).
• Control hips will be screened with a standard AP radiograph. Normal volunteers who have radiographic evidence of FAI, dysplasia or other joint deformities will be excluded.

You may not qualify if:

• Subjects who have radiographic evidence of osteoarthritis (Tonnis Grade III or IV) will be excluded as this study focuses on the mechanics of hips before prominent cartilage damage.
• Subjects who have had prior procedures to correct FAI or other hip conditions will be excluded (exploratory procedures will be included).
• Minors (under age 18), mentally disabled, persons incarcerated, on parole, probation awaiting trial, or pregnant women are excluded from this study.
• A human Chorionic Gondaotropin (hCG) urine pregnancy test will be performed on all women prior to the study.
• To limit the annual radiation exposure to any participating volunteers, we will exclude anyone who has had a CT scan or participated in a research study involving ionizing radiation in the past 12 months.
• Subjects who are unwilling or unable to perform the proposed activities of daily living or undergo the clinical exams will be dismissed.
• Subjects with a BMI less than 30 (www.nhlbisupport.com/bmi/) or those with dense hip musculature/wide hips (maximum of 42 cm of circumferential hip length) will be excluded.
• Subjects who are unwilling or unable to remain still.
• Subjects who are allergic to contrast agent and/or lidocaine will be dismissed.

Sponsors & Collaborators

• University of Utah: lead

Study Sites (1)

University of Utah Orthopaedic Center

Salt Lake City, Utah, 84108, United States

Location

MeSH Terms

Conditions

Femoracetabular Impingement

Condition Hierarchy (Ancestors)

Joint Diseases; Musculoskeletal Diseases; Pathologic Processes; Pathological Conditions, Signs and Symptoms

Study Officials

• Andrew Anderson

  Orthopedic Surgery Operations

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: March 6, 2012
• First Posted: April 12, 2012
• Study Start: January 1, 2012
• Primary Completion (Estimated): December 1, 2028
• Study Completion (Estimated): December 1, 2028
• Last Updated: January 9, 2026

Record last verified: 2026-01

Locations

US (1)