Hip Impingement - Understanding Cartilage Damage

Status Active, not recruiting

Clinical Trial Summary

Femoro-acetabular impingement (FAI) is a known cause of hip pain and possibly a major cause of adult hip osteoarthritis. The relationship between cam-type FAI deformity characteristics and joint degradation to better identify 'at-risk' patients requiring corrective surgery will be scrutinized to gain a better understanding of the condition's natural history. The influence of certain morphologies (e.g. size and location of the deformity) will be analyzed to determine if this leads to aberrant loading of regions of the cartilage and subchondral bone, resulting in cartilage damage and joint degradation. Additionally, this research will determine if changes in the subchondral bone precede cartilage degeneration. The methodology for establishing the morphology/cartilage degeneration relationship includes Magnetic Resonance Image (MRI) analysis, three-dimensional motion analysis and computer simulation/finite element analysis. The outcomes of this research may lead to a reduction in total hip replacement cases by as much as 70%, saving many Canadians from a painful and debilitating condition and reducing costs to the Canadian health care system by as much as $290 million annually.

Clinical Trial Description

The research objectives are: 1. To determine the factors of cam deformities, including morphological, functional and bone quality, that are associated with cartilage degeneration through shape analysis, kinematic analysis, MRI imaging and bone densitometry. 2. To determine whether subchondral bone changes occur before detectable cartilage degeneration by examining magnetic resonance images of asymptomatic subjects who have an identifiable deformity. 3. To use 3D motion and finite element analysis to examine differences in mechanical stimuli in the subchondral bone and cartilage that are associated with FAI, thus expanding our understanding of the pathomechanisms of associated degeneration. Three subject cohorts will be recruited: subjects with bilateral cam deformity and unilateral symptoms (Group I, 'active cartilage damage stage'), asymptomatic subjects with cam deformity (Group II, 'early stage') and asymptomatic control subjects with no deformity (Group III). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01546493
Study type	Interventional
Source	Ottawa Hospital Research Institute
Contact
Status	Active, not recruiting
Phase	N/A
Start date	August 4, 2010
Completion date	April 28, 2024

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See also
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Completed	`NCT04980209` - The Feasibility and Application of Intraoperative Ultrasound to Evaluate Femoral Head Shaping
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Active, not recruiting	`NCT04822571` - Investigating the Reliability of Highly Dynamic 3D Motion Analysis Protocol in Adolescence and Adult Males	N/A
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Completed	`NCT01993615` - A Physical Therapy Program Versus Surgery for Femoroacetabular Impingement: Randomized Clinical Trial	N/A
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.