Medial Retinacular Plication Versus Medial Patellofemoral Ligament Reconstruction for Recurrent Patellar Instability

  • STATUS
    Recruiting
  • End date
    Dec 24, 2022
  • participants needed
    30
  • sponsor
    Meir Medical Center
Updated on 24 January 2021
Investigator
Iftach Hetsroni, M.D.
Primary Contact
Meir Medical Center (0.0 mi away) Contact

Summary

The purpose of this study is to determine whether medial patellofemoral ligament reconstruction results in superior functional outcomes compared to medial retinacular plication surgery in cases of recurrent patellar instability.

Description

Patients with recurrent lateral patellar instability will be assigned to undergo one of two surgical approaches aimed to prevent recurrent patellar instability and result in improvement in function. One surgical approach will be medial retinacular plication with multiple stitches while the other surgical approach will include medial patellofemoral ligament reconstruction using a hamstring tendon graft. Prior to surgery, and then during follow-up after surgery as well as at the completion of minimum two years follow-up after surgery, patients will be asked to complete subjective functional questionaires that will rate their knee function, and to undergo detailed physical examination and objective functional tests that will quantify the success of surgery. The outcomes of the surgical treatment options will be compared to determine whether medial patellofemoral ligament reconstruction results in superior function and patient subjective satisfaction compared to medial retinacular plication only.

Details
Condition Patella, Familial Recurrent Dislocation Of, Patella, Familial Recurrent Dislocation Of, Patella, Familial Recurrent Dislocation Of, Patella, Familial Recurrent Dislocation Of
Treatment Surgical treatment for recurrent patellar instability
Clinical Study IdentifierNCT02480959
SponsorMeir Medical Center
Last Modified on24 January 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Recurrent lateral patellar instability has been described by the patient
Imaging criteria include
TT-TG distance (on CT or MRI) is between 10-20 mm
Insall-Salvati Index is between 0.9 - 1.2
Trochlea angle is lower than 145 degrees

Exclusion Criteria

Only a single event of lateral patellar instability occured
Imaging criteria include
TT-TG distance (on CT or MRI) is below 10 mm or above 20 mm
Insall-Salvati Index is below 0.9 or above 1.2
Trochlea angle is above 145 degrees
Other concomitant intra-articular patholgies, injuries, and surgeries, besides the patella instability, with were recorded at the lower limbs and did not uneventfuly healed, and as a result cause dysfunction of the lower limbs
Significant ligamentous injuries of the knees, including cruciate and collateral injuries, as well as meniscal injuries that interfere with function
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