MPFL Reconstruction With or Without Tibial Tubercle Transfer

Medial Patellofemoral Ligament (MPFL) Reconstruction With or Without Tibial Tubercle Transfer for Recurrent Patellar Instability

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02267564

Enrollment

Registered

2014-10-17

Start date

2014-09-30

Completion date

2025-08-31

Last updated

2023-06-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patellar Dislocation

Keywords

patellar dislocation, medial patellofemoral ligament, tibial tubercle transfer

Brief summary

This study aims to compare the clinical outcome of Medial PatelloFemoral Ligament (MPFL) reconstruction with and without tibial tubercle transfer for recurrent patellar dislocation.

Detailed description

70 patients with recurrent patellar instability were randomly assigned to undergo MPFL reconstruction with or without tibial tubercle transfer. Follow-ups were performed at 12 and 24 months postoperatively, and computed tomography (CT) was performed immediately after the operation and at follow-up. The knee function was evaluated preoperatively and at 2 years postoperatively using Lysholm,Tegner and Kujala scales. Redislocation or multiple episodes of patellar instability were considered failures.

Interventions

PROCEDUREMPFL reconstruction

to correct patellar dislocation with medial patellofemoral ligament reconstruction

PROCEDUREtibial tubercle transfer

to correct patellar dislocation with tibial tubercle medial transfer

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

No minimum to 40 Years

Healthy volunteers

Inclusion criteria

* recurrent patellar dislocation or instability,patients with TT-TG value equal to or greater than 20 mm,patients with closed epiphyseal plate TT-TG：Two lines drawn perpendicular to posterior bicondylar line, one line through middle of the trochlear groove(TG) and the second through tibial tuberosity (TT). Distance between the lines is measured.

Exclusion criteria

* bilateral patellar dislocation, a previous surgery in the involved leg,patients with open epiphyseal plate,patients with severe trochlear dysplasia

Design outcomes

Primary

Measure	Time frame	Description
Lysholm score of the knee	two years	Lysholm score of the knee was evaluated preoperatively and at 2 years post operation . Scale name:score
Tegner score of the knee	two years	Tegner score of the knee was evaluated preoperatively and at 2 years post operation . Scale name:score
Kujala score of the knee	two years	Kujala score of the knee was evaluated preoperatively and at 2 years post operation .

Secondary

Measure	Time frame	Description
CT images of the knee	two years	CT was performed immediately after the operation and at follow-up.

Countries

China

Contacts

Primary ContactJia-Kuo Yu, Doctor

yujiakuo@126.com861082267392

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026