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Comparison of Dynamic and Static Medial Patellofemoral Ligament Operation Technique for Recurrent Patellar Dislocation

RecruitingNAAges 14 Years - anyAllUniversity Hospital, Basel, Switzerland
NCT04849130 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

This study is to evaluate whether the dynamic Medial Patellofemoral Ligament (MPFL) reconstruction as described by Becher is a successful operation technique to prevent patella instability and restore quality of life. It is to assess and compare clinical and functional outcomes of dynamic and static medial patellofemoral ligament reconstruction

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📋 Eligibility rules (as published)
Inclusion Criteria: * Patients treated with isolated dynamic (operation procedure according to Becher et al.using the gracilis tendon) or static MPFL plastic (operation procedure according to Schöttle et al. using the gracilis tendon). MPFL reconstruction will be performed in patients with preceding patella dislocation with: 1) a Patella-Instability-Severity (PIS) score ≤ 3 with concomitant flake fracture or 2) a PIS score ≥ 4 with clinical asymptomatic trochlea dysplasia (patella stability between 30°-60° knee flexion) without other clinically relevant static risk factors. * Closed growth plates Exclusion Criteria: * Combined procedures with trochleoplasty (high grade trochlea dysplasia, type Dejour C,D with clinical instability between 30° and 60° of knee flexion) * combined procedures with cartilage transplantation * High grade patellofemoral arthritis (Kellgren Lawrence score ≥3) * combined procedures with femoral or tibial osteotomy * Clinically eminent valgus axis (\>15° valgus) * Femoral internal rotation \>20°, tibial external rotation \>40° * Instability of the cruciate or collateral ligaments * Known significant musculoskeletal disease * Cognitive impairment
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What it tests

  • Static reconstruction technique according to Schöttle
  • Dynamic reconstruction technique according to Becher
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Where

2 sites
Department of Orthopaedics and Traumatology, University Hospital Basel
Basel, Switzerland
Department of Orthopaedics and Traumatology, Swiss Altius Medical Clinic
Rheinfelden, Switzerland
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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