Hamstring Versus Quadriceps Tendon Graft for MPFL Reconstruction
21. august 2026 opdateret af: Mahmoud Ahmed El-Desouky, Cairo University
Comparison Between Hamstring Versus Quadriceps Tendon Graft in MPFL Reconstruction for Recurrent Patellar Dislocation
This prospective comparative study compared the clinical and radiological outcomes of medial patellofemoral ligament (MPFL) reconstruction using a hamstring tendon graft versus a quadriceps tendon graft in patients with recurrent patellar dislocation.
The study included 38 patients with 40 affected knees who underwent MPFL reconstruction using either a hamstring tendon graft or a quadriceps tendon graft, according to the treating surgeon's preference.
Patients were prospectively followed in two groups according to the graft used.
Clinical outcomes were assessed using the Kujala, International Knee Documentation Committee (IKDC), and Tegner-Lysholm scores.
Radiological assessment included patellar tilt angle and congruence angle.
Postoperative complications and recurrent patellar instability were also evaluated.
Studieoversigt
Status
Afsluttet
Betingelser
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
38
Kontakter og lokationer
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Studiesteder
-
-
-
Cairo, Egypten
- Cairo University Hospitals (Kasr Al-Ainy)
-
-
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
Tager imod sunde frivillige
Ingen
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
Patients with recurrent patellar instability who underwent medial patellofemoral ligament reconstruction using either a hamstring tendon graft or a quadriceps tendon graft.
Beskrivelse
Inclusion Criteria:
- Patients with recurrent patellar dislocation.
- Age from 18 to 40 years.
- Patients indicated for isolated medial patellofemoral ligament (MPFL) reconstruction.
Exclusion Criteria:
- Patients with trochlear dysplasia (Dejour B-C-D).
- Patients with clinical evidence of mal-alignment (varus, valgus, flat foot and femoral anteversion).
- Patients with congenital pateller dislocation.
- Patella alta and patella baja.
- Previous quadriceps muscles operation.
- Patients with patellofemoral OA.
- Patients with hypermobility syndrome.
- Patients with associated pathology.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
Intervention / Behandling |
|---|---|
|
Hamstring Tendon Graft Group
Patients who underwent MPFL reconstruction using a hamstring tendon graft.
|
Medial patellofemoral ligament reconstruction was performed using an autologous semitendinosus tendon graft.
The graft was fixed to the medial aspect of the patella and passed between layers 2 and 3 of the medial knee structures, followed by femoral fixation at the anatomical MPFL insertion.
|
|
Quadriceps Tendon Graft Group
Patients who underwent MPFL reconstruction using a quadriceps tendon graft.
|
Medial patellofemoral ligament reconstruction was performed using a distally based superficial quadriceps tendon graft.
The graft remained attached to the superior pole of the patella, was passed between layers 2 and 3 of the medial knee structures, and was fixed at the anatomical femoral insertion of the MPFL.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Kujala score
Tidsramme: 12 months postoperatively
|
Functional outcome assessed using the Kujala anterior knee pain scale.
The score ranges from 0 to 100, with higher scores indicating better knee function and fewer patellofemoral symptoms.
|
12 months postoperatively
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
International Knee Documentation Committee (IKDC) Score
Tidsramme: 12 months postoperatively
|
Knee function was assessed using the International Knee Documentation Committee (IKDC) score.
Scores range from 0 to 100, with higher scores indicating better knee function.
|
12 months postoperatively
|
|
Tegner-Lysholm Knee Score
Tidsramme: 12 months postoperatively
|
Knee function was assessed using the Tegner-Lysholm knee score.
Scores range from 0 to 100, with higher scores indicating better knee function.
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12 months postoperatively
|
|
Patellar Tilt Angle
Tidsramme: 12 months postoperatively
|
Patellar tilt angle was measured radiologically to assess patellofemoral alignment before and after MPFL reconstruction.
|
12 months postoperatively
|
|
Congruence Angle
Tidsramme: 12 months postoperatively
|
Congruence angle was measured radiologically to assess patellofemoral alignment before and after MPFL reconstruction.
|
12 months postoperatively
|
|
Incidence of Re-dislocation
Tidsramme: 12 months postoperatively
|
Number of cases who experienced re-dislocation after MPFL reconstruction
|
12 months postoperatively
|
Samarbejdspartnere og efterforskere
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Sponsor
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
1. juni 2018
Primær færdiggørelse (Faktiske)
1. juni 2022
Studieafslutning (Faktiske)
1. juni 2022
Datoer for studieregistrering
Først indsendt
21. august 2026
Først indsendt, der opfyldte QC-kriterier
21. august 2026
Først opslået (Faktiske)
25. august 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
25. august 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
21. august 2026
Sidst verificeret
1. august 2026
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- N-356-2018
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