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

  • End date
    Dec 18, 2022
  • participants needed
  • sponsor
    Medical University of Warsaw
Updated on 18 July 2021
hip arthroplasty
joint reconstruction


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.


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

Condition Ischium, Hip, Arthritis, Osteoarthritis, Arthritis and Arthritic Pain, Arthritis and Arthritic Pain (Pediatric), degenerative arthritis
Treatment Direct Anterior Approach (DAA), Anterolateral approach
Clinical Study IdentifierNCT03850665
SponsorMedical University of Warsaw
Last Modified on18 July 2021


Yes No Not Sure

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
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