Evaluation of Ultrasound for Detecting Hip Impingement

Not Applicable

Withdrawn

• Conditions: Femoroacetabular Impingement
• Interventions: Procedure: Magnetic resonance imaging; Procedure: Ultrasound

• Registration Number: NCT02260726
• Lead Sponsor: Ottawa Hospital Research Institute

Brief Summary

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.

Detailed Description

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.

Basic Information
|
Recruitment & Eligibility
|
Study & Design

Study Timeline

• Study Start: 2014-10
• Study First Submitted: 2014-10-06
• Study First Submitted QC: 2014-10-08
• Study First Posted: 2014-10-09
• Primary Completion: 2015-10
• Study Completion: 2016-10
• Status Verified: 2018-04
• Last Update Submitted: 2018-04-13
• Last Update Posted: 2018-04-17

Recruitment & Eligibility

• Status: WITHDRAWN
• Sex: All
• Target Recruitment: Not specified

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.

Read More

Exclusion Criteria

• Patients who don't meet inclusion criteria
• Control group: subjects with hip pain or with alpha angle > 50 degrees on MRI

Read More

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Control	Ultrasound	Asymptomatic subjects with normal hip morphometry, as determined by MRI. Subjects will undergo magnetic resonance imaging (MRI) and ultrasound imaging.
Surgical group	Magnetic resonance imaging	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.
Surgical group	Ultrasound	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.
Control	Magnetic resonance imaging	Asymptomatic subjects with normal hip morphometry, as determined by MRI. Subjects will undergo magnetic resonance imaging (MRI) and ultrasound imaging.

Primary Outcome Measures

Name	Time	Method
Ultrasound grade	Upon enrollment	Ultrasound grade evaluated on a four point scale following ultrasound imaging session

Secondary Outcome Measures

Name	Time	Method
MRI parameters	Upon enrollment	Standard MRI measures of impingement from images. Used as gold standard for comparative purposes.
Ultrasound parameters	Upon enrollment	Morphometry of hip measured in ultrasound images: alpha angle, clearance angle