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Patellar Stability After MPFL Reconstruction With Fascia Lata Allograft: Conventional CT vs Under Weight-bearing CT

NCT04242732 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2024-05-29

No results posted yet for this study

Summary

The objective of the present study is to compare the stability and alignment of the patella in patients with previous recurrent dislocation treated with medial patellar femoral ligament reconstruction with fascia lata allograft, 5 years after surgery by conventional CT and by CT under weight-bearing.

Conventional CT will be performed with the patient supine, the knee fully extended and with the muscles of the thigh and leg completely relaxed. On the same day, the patient will undergo a CT scan of the knee under weight-bearing with the Cone Beam Computed Tomography (CBCT) scanner system.

The CT images will be viewed through the PACS system by two independently expert radiologists who will measure the tilt, congruence angles and the TT-TG with the methodical notes described in the literature.

The use of a CT under weight-bearing allows for the first time to evaluate in a realistic way the stability and tracking of the patella, with the knee flexed and therefore with the activation of the quadriceps muscle.

Conditions

  • Patellofemoral Dislocation

Interventions

DIAGNOSTIC_TEST

CT scan of the knee under weight-bearing with the Cone Beam Computed Tomography (CBCT) scanner system.

The patient will be evaluated under weight-bearing, with knee flexed at 30 ° and therefore with contracted thigh muscles. The measurement and maintenance of the 30 ° of flexion will be controlled by a goniometer applied laterally to the knee and fixed by means of an elastic band.

DIAGNOSTIC_TEST

Conventional CT scan

The patient will be evaluated in supine position, with the muscles relaxed and the knee in full extension by conventional CT scan

Sponsors & Collaborators

  • Istituto Ortopedico Rizzoli

    lead OTHER

Principal Investigators

  • Giada Lullini, MD · IRCCS Istituto Ortopedico Rizzoli

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-02-26
Primary Completion
2019-05-26
Completion
2020-02-26

Countries

  • Italy

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04242732 on ClinicalTrials.gov