MPFL Reconstruction With or Without Tibial Tubercle Transfer

Not Applicable

Recruiting

• Conditions: Patellar Dislocation
• Interventions: Procedure: MPFL reconstruction; Procedure: tibial tubercle transfer

• Registration Number: NCT02267564
• Lead Sponsor: Yu Jiakuo

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.

Study Timeline

• Study Start: 2014-09
• Study First Submitted: 2014-09-28
• Study First Submitted QC: 2014-10-16
• Study First Posted: 2014-10-17
• Status Verified: 2023-06
• Last Update Submitted: 2023-06-06
• Last Update Posted: 2023-06-08
• Primary Completion: 2025-08
• Study Completion: 2025-08

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 70

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
MPFLR without tibial tubercle transfer	tibial tubercle transfer	Patients with patellar instability undergo MPFL reconstruction without tibial tubercle transfer.
MPFLR without tibial tubercle transfer	MPFL reconstruction	Patients with patellar instability undergo MPFL reconstruction without tibial tubercle transfer.
MPFLR with tibial tubercle transfer	MPFL reconstruction	Patients with patellar instability undergo MPFL reconstruction with tibial tubercle transfer.
MPFLR with tibial tubercle transfer	tibial tubercle transfer	Patients with patellar instability undergo MPFL reconstruction with tibial tubercle transfer.

Primary Outcome Measures

Name	Time	Method
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 Outcome Measures

Name	Time	Method
CT images of the knee	two years	CT was performed immediately after the operation and at follow-up.

Trial Locations

Locations (1)

Peking University Third Hospital; 🇨🇳 Beijing, Beijing, China