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CompletedNCT05706363Updated Oct 28, 2026

Comparison of Two Graft Choices in Mediale Patellofemoral Ligament Reconstruction (MPFL)

An interventional study of Quadriceps graft in Patellar Dislocation, sponsored by Aarhus University Hospital. Completed at 1 site in Denmark. Open to participants aged 15 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-28.

Sponsored by Aarhus University Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 5 years 6 months after the study started (first participant enrolled Jul 2017, registered Jan 2023).
Updated Oct 28, 2026Now CompletedPrimary completion moved+1 moreGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
90
Allocation
Randomized
Ages
15 Years to 40 Years
Sex
All
01

Study summary

The purpose of this study is to elucidate surgical techniques for reconstructing MPFL in the treatment of chronic patella instability. The two techniques are conventional technique with the gracillis and screw fixation in the femur which is compared with new technique where the QT tendons and anchor fixation in the femur are used.

It would be investigated which technique provides the best stability with the least postoperative pain from the reconstruction and the lowest frequency of patellar reluxation.

02

Conditions studied

  • Patellar Dislocation

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03

In context

Patellar Dislocation

41 studies on the registry are indexed under Patellar Dislocation; 9 are open to participants now.

This study's enrollment of 90 is above the median of 50 across 22 interventional studies indexed under Patellar Dislocation.

Browse Patellar Dislocation studies →

Lead sponsor

Aarhus University Hospital is the lead sponsor of 298 studies on the registry; 80 are open to participants now.

Browse Aarhus University Hospital studies →

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
15 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients between 15 and 40 years of age with chronic tendency to lateral patellar dislocation (defined as 2 or more verified dislocation cases)
  • The growth zones must be found closed - verified by MRI scan

Exclusion criteria

Exclusion Criteria:

  • Patients with known rheumatoid arthritis.
  • Patients with arthroscopically detected osteoarthritis (grade 3 cartilage lesion)
  • Inability to follow a normal rehabilitation regime.
  • Previous ligament surgery in injured knees.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
90 participants (actual)

Study arms

  • Active comparator
    MPFL reconstruction with gracillis graft

    MPFL reconstructrion with gracillis graft and screw fixation in femur

    Procedure: Quadriceps graft

  • Experimental
    MPFL reconstruction with quadriceps graft

    MPFL reconstructrion with quadriceps graft and suture anchor fixation in femur

    Procedure: Quadriceps graft

Interventions

  • ProcedureQuadriceps graft

    Using quadriceps graft as new medial patellofemoral ligament graft. Fixated with suture anchor

06

What researchers measure

Primary outcomes

  1. Kujala (Anterior Knee Pain Scale)

    Patient reported outcome score, 0=worst and 100=best

    Time frame: 24 month

Secondary outcomes

  1. Donor site morbidity score, 0=worst and 100=best

    Patient reported outcome score

    Time frame: 24 month

  2. Knee injury and Osteoarthritis Outcome Score (KOOS)

    Patient reported outcome score, 0=worst and 100=best

    Time frame: 24 month

  3. Lysholm-Tegner (Activity Score)

    Patient reported outcome score, 0=worst and 100=best

    Time frame: 24 month

  4. Numerical Rating Scale (NRS-pain score)

    Patient reported outcome score, 0=Best and 10=worst

    Time frame: 24 month

  5. Knee pain

    Palpatory pain in relation to graft fixation in femur on a four-point likert scale (no pain, mild pain, moderate pain, severe pain)

    Time frame: 24 month

  6. Patella Re-luxation sensation

    Question about how often the patella has dislocated after the surgery. (no dislocation, 1-2 dislocation/md, more dislocation).

    Time frame: 24 month

07

Study locations

1 site
  • Division of Sports Trauma, Palle Juul-Jensens Boulevard 99
    Aarhus N, 8200, Denmark
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedDate before it movedWhere the date was before it moved

Ran from Jul 2017 to primary completion in Jul 2024, 84 months.

Primary completion moved once since we started tracking on Sep 25, 2026: Jun 2024 → Jul 2024, on Oct 28, 2026.

Earlier changes are on the record history on ClinicalTrials.gov ↗

How these figures are worked out, and which studies are left out of them.

Registered
Jan 5, 2023
First posted
Jan 31, 2023
StartActual
Jul 1, 2017
Primary completionActual
Jul 5, 2024was Jun 2024
CompletionActual
Jul 30, 2026
Last update
Oct 28, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Status
Active, not recruiting→Completed
changed Oct 28, 2026
Primary completion
Jun 5, 2024→Jul 5, 2024
Oct 28, 2026
Show all 1 update
  1. Oct 28, 2026
    Active, not recruiting→Completed
    Primary completion Jun 5, 2024→Jul 5, 2024
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT05706363
Lead sponsor
Aarhus University Hospital
Responsible party
Martin Lind (Professor, Aarhus University Hospital) — Principal investigator
First posted
Jan 31, 2023
Start date
Jul 1, 2017
Primary completion
Jul 5, 2024
Completion
Jul 30, 2026
Last update
Oct 28, 2026

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

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