Comparison of Functional Outcome in Patients After Hip Arthroplasty Depending on Surgical Approach

Medical University of Warsaw

Status: Completed

Conditions: Osteoarthritis; Hip

Treatments: Procedure: Anterolateral approach; Procedure: Direct Anterior Approach (DAA)

Study type: Interventional

Funder types: Other

Identifiers

NCT03850665

THA/ Warsaw MU

Details and patient eligibility

About

The aim of the study will be to compare functional outcomes of the two surgical hip approaches in total hip arthroplasty: anterior, posterolateral and anterolateral. Surgical approach may have influence on patients functional outcome.

Full description

Patients with primary hip osteoarthritis will be included in a randomized controlled trial and assigned to total hip arthroplasty using one the of hip approaches: anterior or anterolateral. Subjects will be assessed preoperative and 3 and 12 moths postoperative.

Biomechanical gait parameters will be collected using tree-dimensional motion analysis system "BTS SMART".

Evaluation of the function of the middle gluteal muscle with superficial EMG (sEMG) percutaneous surface electromyography. Fatigue assessment (mean frequency and amplitude) of the gluteus medius muscle during isometric muscle contraction.

Balance and coordination as well as fall risk will be assessed with use of dynamometric Biodex Balance platform. The study will determine the values of individual indicators: general stability index (OWS), anterior-posterior stability index (APW), the median lateral stability index (MLW) and the fall risk index (RU).

Subjective assessment will be conducted with use of Visual Analogue Scale, WOMAC Index, Oxford Hip Score, The Short Form-36 (SF-36) and Harris Hip Score

Enrollment: 140 patients

Sex: All

Ages: 50 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• patient's consent for anticipation in the study
• BMI less than 35
• ability to walk the distance of 10m and stand up from the chair
• arthroplasty in one hip

Exclusion criteria

• patient's lack of consent for anticipation in the study
• neurological diseases
• balance disorders
• reoperations in the area of endoprosthesis
• muscles diseases
• rheumatic diseases (rheumatoid arthritis, ankylosing spondylitis)
• dizziness, vasovagal syncope

Trial design

Primary purpose: Diagnostic

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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140 participants in 3 patient groups

Direct Anterior Approach (DAA)

Active Comparator group

Description:

Direct Anterior Approach surgery to replace the hip.

Treatment:

Procedure: Direct Anterior Approach (DAA)

Procedure: Anterolateral approach

Anterolateral approach

Active Comparator group

Description:

Anterolateral Approach surgery to replace the hip.

Treatment:

Procedure: Direct Anterior Approach (DAA)

Procedure: Anterolateral approach

Posterolateral approach

Active Comparator group

Description:

Posterolateral Approach surgery to replace the hip.

Treatment:

Procedure: Direct Anterior Approach (DAA)

Procedure: Anterolateral approach