Evaluation of Ultrasound for Detecting Hip Impingement

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

NA

Study Classification

INTERVENTIONAL

Study Start Date

2014-10-31

Study Completion Date

2016-10-31

Brief Summary

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Patients are being asked to participate in this study because a previous research MRI of their hips showed that the shape of the head of their thigh bone may indicate FAI of the hip. We have already collected cartilage imaging data and data on how the hip joint moves on people with painful/symptomatic FAI and people with normal hip function. We would now like to compare the motion of the hip joint to those with painful FAI using ultrasound.

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Detailed Description

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Hip impingement is thought to be a leading cause of hip osteoarthritis, and occurs due to deformities in the hip joint. However some individuals have these deformities but do not exhibit symptoms. Using the standard magnetic resonance imaging and clinical tests it is not clear which deformities will cause degeneration, requiring surgical intervention. We propose to evaluate the deformity and impingement between the femur and acetabulum using dynamic ultrasound imaging. Ultrasound does not involve radiation and can acquire video of the hip joint and is thus suitable for such diagnostic purposes. In this pilot study we will evaluate the feasibility of ultrasound in diagnosing hip impingement.

Conditions

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Femoroacetabular Impingement

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SCREENING

Blinding Strategy

NONE

Study Groups

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Surgical group

Subjects already scheduled to undergo surgical correction of a symptomatic cam-type hip impingement deformity. Subjects will undergo magnetic resonance imaging (MRI) and ultrasound investigation prior to surgery.

Group Type EXPERIMENTAL

Magnetic resonance imaging

Intervention Type PROCEDURE

Ultrasound

Intervention Type PROCEDURE

Control

Asymptomatic subjects with normal hip morphometry, as determined by MRI. Subjects will undergo magnetic resonance imaging (MRI) and ultrasound imaging.

Group Type OTHER

Magnetic resonance imaging

Intervention Type PROCEDURE

Ultrasound

Intervention Type PROCEDURE

Interventions

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Magnetic resonance imaging

Intervention Type PROCEDURE

Ultrasound

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

Surgical group:

* Hip pain longer than 6 months referred to the groin/lateral aspect of the hip
* Positive Impingement Sign

Plain radiographs:

* Absence of arthritis (Tonnis Grade 0 or 1)
* Absence of dysplasia (center edge \>25 degrees) on anterior-posterior radiograph
* α-angle greater than 60 degrees on MRI.

* Control group: subjects with hip pain or with alpha angle \> 50 degrees on MRI

Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes