MPFL Reconstruction With or Without Tibial Tubercle Transfer

Yu Jiakuo

Status: Enrolling

Conditions: Patellar Dislocation

Treatments: Procedure: tibial tubercle transfer; Procedure: MPFL reconstruction

Study type: Interventional

Funder types: Other

Identifiers

NCT02267564

2014099

Details and patient eligibility

About

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

Full 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.

Enrollment: 70 estimated patients

Sex: All

Ages: Under 40 years old

Volunteers: No 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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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70 participants in 2 patient groups

MPFLR without tibial tubercle transfer

Experimental group

Description:

Patients with patellar instability undergo MPFL reconstruction without tibial tubercle transfer.

Treatment:

Procedure: MPFL reconstruction

Procedure: tibial tubercle transfer

MPFLR with tibial tubercle transfer

Active Comparator group

Description:

Patients with patellar instability undergo MPFL reconstruction with tibial tubercle transfer.

Treatment:

Procedure: MPFL reconstruction

Procedure: tibial tubercle transfer