Movement Pattern in Patients With Hip Dysplasia

Hip Dysplasia Clinical Trial

Official title:

Movement Pattern in Patients With Hip Dysplasia Operated With Minimally Invasive Approach in Peri-acetabular Osteotomy (PAO)

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01344421
• Other study ID #: M-20100206
• Status: Completed
• Phase: N/A
• First received: April 27, 2011
• Last updated: April 4, 2013
• Start date: March 2011
• Est. completion date: March 2013

Study information

• Verified date: April 2013
• Source: University of Aarhus
• Contact: n/a
• Is FDA regulated: No
• Health authority: Denmark: Danish Dataprotection Agency
• Study type: Observational

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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 55
• Est. completion date: March 2013
• Est. primary completion date: March 2013
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 18 Years to 60 Years

Eligibility

Inclusion Criteria:

• Patients diagnosed with hip dysplasia

• Patients in the age of 18-60 years

• Patients, who can speak, understand and read Danish

Exclusion Criteria:

• Persons with hip dysplasia secondary to other hip conditions such as Calvé Perthes and epiphysiolysis.

• Persons who have had alloplastic surgery in the hip, knee or ankle.

• Persons with diseases that affect the gait pattern.

• Persons with serious hip, knee, ankle or back pain.

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

• Hip Dislocation
• Hip Dislocation, Congenital
• Hip Dysplasia

Intervention

Procedure:
• Minimally invasive approach for Periacetabular osteotomy
A peri-acetabular osteotomy is a surgery performed to correct the dysplastic acetabulum and reduce joint contact pressures and early osteoarthritis.

Locations

Country	Name	City	State
Denmark	Aarhus University Hospital	Aarhus

Sponsors (1)

Lead Sponsor	Collaborator
Aarhus University Hospital

Country where clinical trial is conducted

Denmark, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Hip flexion's muscle moment in stance evaluated in gait, run and jump test	Examined using 3D Movement Capture System	Preoperative (baseline), 6 and 12 month postoperative	No
Secondary	Hip extension angle evaluated in gait, run and jump test	Examined using 3D Movement Capture Systen	Preoperative (baseline), 6 and 12 month postoperative	No
Secondary	On-set of the hip muscles evaluated in gait, run and jump test	Examined using skin electromyography (EMG)	Preoperative (baseline), 6 and 12 month postoperative	No
Secondary	Function, sports and recreational activities	Evaluated with Hip Dysfunction and Osteoarthritis Outcome Score (HOOS) and The Copenhagen Hip and Groin Outcome Score (HAGOS)	Preoperative (baseline), 6 and 12 month postoperative	No
Secondary	Quality of life	Evaluated with Hip Dysfunction and Osteoarthritis Outcome Score (HOOS) and The Copenhagen Hip and Groin Outcome Score (HAGOS)	preoperative (baseline), 6 and 12 month postoperative	No