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Active, not recruitingNCT03076008TT-TG OutcomeUpdated Jul 14, 2026

The Impact of Tibial Tubercle-trochlear Groove Distance and Patellar Height on the Outcome of Isolated Medial Patellofemoral Ligament Reconstruction

An observational study in Patellar Dislocation, sponsored by University of Minnesota. Active, not recruiting at 1 site in United States. Open to participants aged 13 Years to 90 Years. Per ClinicalTrials.gov, last updated 2026-07-14.

Sponsored by University of Minnesota · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
201
Ages
13 Years to 90 Years
Sex
All
01

Study summary

The investigators plan to perform a prospective observational cohort study of patients undergoing MPFL reconstruction for the treatment of episodic patellar instability in the absence of significant degenerative disease. The investigators will follow these study subjects for a minimum of two years to monitor their functional and clinical outcome.

02

Conditions studied

  • Patellar Dislocation

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03

Who can participate

Ages eligible
13 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients undergoing MPFL reconstruction for patella instability

Inclusion criteria

  • MPFL Reconstruction

Exclusion criteria

Exclusion Criteria:

  • Trochleoplasty Required
  • Prior ipsilateral knee surgery
  • Iwano grade 2+
  • CHondral injury requiring surgical treatment beyond debridement
  • Major ligamentous injury to the knee
04

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
201 participants (actual)
Patient registry
No

Groups and cohorts

  • MPFL Reconstruction

    Subjects undergoing MPFL Reconstruction

    Other: Observational

Interventions

  • OtherObservational

    No intervention

05

What researchers measure

Primary outcomes

  1. Recurrent Dislocation

    Recurrent Dislocation

    Time frame: 2 years

06

Study locations

1 site
  • University of Minnesota
    Minneapolis, Minnesota 55454, United States
07

References and documents

Individual participant data

Plan to share: Undecided — We are currently undecided

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT03076008
Lead sponsor
University of Minnesota
Collaborators
International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine, Ohio State University, OrthoSport Victoria
Responsible party
Sponsor
First posted
Mar 9, 2017
Start date
Oct 1, 2016
Primary completion
Mar 31, 2023
Completion
Sep 30, 2026 (estimated)
Last update
Jul 14, 2026

Study contacts

Elizabeth Arendt
principal investigator · University of Minnesota

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

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