Movement Pattern in Patients With Hip Dysplasia

Status Completed

Clinical Trial Summary

The purpose of this study is to examine the movement pattern in patients with hip dysplasia preoperative, six and 12 month after minimally invasive approach for Periacetabular osteotomy (PAO). Secondary to examine the movement pattern in patients compared to healthy controls and historical data.

Clinical Trial Description

Congenital hip dysplasia is a disease characterised by pathological changes in the hip joint. Hip dysplasia is a normal disease with a prevalence of 4.3% in men and 3.6 in woman. Untreated hip dysplasia is a known cause of developing osteoarthritis early in life and symptoms as pain, hip instability together with a changed gait pattern are normal. Symptomatic hip dysplasia is seen in patients between 15 and 55 years and can be unilateral as well as bilateral. Causes of hip dysplasia are described as genetic, mechanic or hormonal.

Today patients with hip dysplasia are offered a hip conserving surgery before the osteoarthritis has developed. In 2003 a minimally invasive approach for periacetabular osteotomy (PAO) was introduced at Aarhus University Hospital. An advantage of minimally invasive approach compared to the classical Bernese periacetabular osteotomy is minimal impact of the soft tissues in the hip region.

Hip pain and activity limitations highly affect quality of life and physical function. The gait distance is reduced and patients have to compensate to relieve the pressure on the hip joint. Knowledge about the dynamics of the gait and running pattern in patients with dysplasia is important to understand the consequences of the dysplastic hip joint. Furthermore knowledge about gait compensations is relevant for the clinicians in the management and treatment of patients with hip dysplasia.

Today, gait and running compensation is unknown after minimally invasive approach The purpose of this study is, therefore, to examine the movement pattern in patients with hip dysplasia preoperative, six and 12 month after minimally invasive approach for Peri-acetabular osteotomy (PAO). Secondary to examine the movement pattern in patients compared to healthy controls and historical data. ;

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01344421
Study type	Observational
Source	University of Aarhus
Contact
Status	Completed
Phase	N/A
Start date	March 2011
Completion date	March 2013

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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.