Clinical trial NCT00605969: Dynamic Imaging of the Hip for Pre-operative Planning
Official title: Hip Reconstruction and Modeling for Surgical Pre-Operative Planning
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Femoroacetabular, Impingement
Keywords: femoroacetabular, impingement
Lead sponsor: Ottawa Hospital Research Institute
Sponsor class: OTHER
First posted: 2008-02-01
Enrollment: 30
Sex: ALL
Minimum age (years): 18
Maximum age (years): 55
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: NON_RANDOMIZED
Intervention model: PARALLEL
Primary purpose: OTHER

Brief summary: One of the leading causes of hip arthritis is femoro-acetabular impingement which means the hip joint is deformed such that the hip joint jams in the front when the hip is bent all the way forward. This can lead to significant damage to the hip joint and may result in the need for a total hip replacement. However, if detected early, this deformity can be treated surgically by reshaping the hip joint. If the hip joint could be better visualized before surgery, then surgeons would be able to develop less invasive surgical techniques to correct this deformity.

Detailed description: In this study, we are trying to develop a way to help surgeons visualize the hip joint before surgery in order to assist with pre-operative planning. This will be done by comparing the dynamic hip images in patients with femoroacetabular impingement to the hip images of healthy volunteers with no hip problems.

Eligibility criteria: Inclusion Criteria:

* All participants (patients and controls) must be between the ages of 18 and 55, with a BMI less than 35.

The patients must have a probable diagnosis of femoro-acetabular impingement (FAI). Their hip pain must have been ongoing for at least 3 months. The controls must have a normal hip as defined by AP pelvis radiographs.

Exclusion Criteria:

* Participants (patients and controls) will be excluded if they are pregnant, have a knee injury or replacement, or history of childhood hip disease. Patients will be excluded if have they have arthritis, previous fracture or trauma to the hip, previous hip surgery, dysplasia, or avascular necrosis. Controls will be excluded if they have hip pain.

Primary outcomes:
measure: Validation of kinematic model of hip joint
timeFrame: Within 6 months of recruitment
Secondary outcomes:
measure: Joint Kinetics
timeFrame: 24 months
measure: Muscle Activity
timeFrame: 24 months
Other outcomes:
Locations:
city: Ottawa
country: Canada
facility: The Ottawa Hospital
state: Ontario
Study officials:
affiliation: University of Ottawa / The Ottawa Hospital
name: Paul E Beaule, MD, FRCSC
role: PRINCIPAL_INVESTIGATOR
References:
citation: Ng KC, Lamontagne M, Adamczyk AP, Rakhra KS, Beaule PE. Patient-specific anatomical and functional parameters provide new insights into the pathomechanism of cam FAI. Clin Orthop Relat Res. 2015 Apr;473(4):1289-96. doi: 10.1007/s11999-014-3797-1.
citation: Kennedy MJ, Lamontagne M, Beaule PE. Femoroacetabular impingement alters hip and pelvic biomechanics during gait Walking biomechanics of FAI. Gait Posture. 2009 Jul;30(1):41-4. doi: 10.1016/j.gaitpost.2009.02.008.
citation: Lamontagne M, Kennedy MJ, Beaule PE. The effect of cam FAI on hip and pelvic motion during maximum squat. Clin Orthop Relat Res. 2009 Mar;467(3):645-50. doi: 10.1007/s11999-008-0620-x. Epub 2008 Nov 26.
citation: Lamontagne M, Brisson N, Kennedy MJ, Beaule PE. Preoperative and postoperative lower-extremity joint and pelvic kinematics during maximal squatting of patients with cam femoro-acetabular impingement. J Bone Joint Surg Am. 2011 May;93 Suppl 2:40-5. doi: 10.2106/JBJS.J.01809.
citation: Brisson N, Lamontagne M, Kennedy MJ, Beaule PE. The effects of cam femoroacetabular impingement corrective surgery on lower-extremity gait biomechanics. Gait Posture. 2013 Feb;37(2):258-63. doi: 10.1016/j.gaitpost.2012.07.016. Epub 2012 Aug 28.