Outcomes of Meniscus Root Repair Using a Transtibial Pullout Technique

Study Overview
=================
Brief Summary
-----------------
The results of this study will optimize the care for patients with a meniscus root tear. Surgeons will be able to determine if MRR (meniscus root repair) with transtibial pullout technique is an effective treatment and will identify potential risk factors for poor clinical outcomes. In addition, investigators will determine if MRR is successful in delaying the radiographic progression of arthritis in the involved compartment.

Detailed Description
-----------------
The loss of attachment at the root of the meniscus impairs the ability to maintain hoop strain when the tibiofemoral joint is loaded. This loss of hoop strain is responsible for the increased pressure on the articular cartilage. This new awareness has prompted surgeons to consider surgical repair for treatment of meniscal root avulsions. Despite this recent focus on results of surgical repair, prospective studies are lacking, and the optimal surgical indications and technique have not been optimized.

Official Title
-----------------
Multi-Center Prospective Clinical and Radiographic Outcomes of Meniscus Root Repair Using a Transtibial Pullout Technique

Conditions
-----------------
Meniscus Tear

Intervention / Treatment
-----------------
* Procedure: Transtibial pullout technique


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Meniscus root avulsion tear (defined as meniscus posterior horn root avulsion or full thickness tear within 9 mm of the root attachment) Age 18-65 Ligament injury with concomitant reconstruction is acceptable Malalignment with corrective osteotomy is acceptable Exclusion Criteria: Subchondral collapse on pre-op MRI Extrusion greater than 3 mm Intra-op Outerbridge grade 3 or greater chondromalacia Intra-op poor quality meniscus tissue Mal-alignment greater than 5 degrees without corrective osteotomy Obesity with BMI over 40 Kellgren Lawrence > grade 2 Worker's compensation status

Ages Eligible for Study
-----------------
Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Transtibial pullout technique<br>Evaluation of the clinical and radiographic outcomes for patients undergoing a meniscus root repair (MRR) using a transtibial pullout technique. | Procedure: Transtibial pullout technique<br>* Evaluating radographs<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Tegner activity score | Tegner activity level scale is a graduated list of activities of daily living, recreation, and competitive sports. The patient is asked to select the level of participation that best describes their current level of activity and that before injury. The score varies from 0-10. A score of 0 represents sick leave or disability pension because of knee problems, whereas a score of 10 corresponds to participation in national and international elite competitive sports >6 score can only be achieved if the person participates in recreational or competitive sport. | baseline, 2 years |