At TRIA (Bloomington), we balance measuring patient outcomes, which can be considered small continuous improvements, with innovative research studies, which are those grand advancements in orthopaedic care. These research studies explore the latest in medical devices, instruments, implants, methods and procedures.

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The TRIA Research Minute is our monthly research newsletter designed to update you on our current research activity.  To receive our monthly news letter delivered to your inbox, you can sign up to the right.  Our archive can be found below.

TRIA Research Minute | February 2016

TRIA Research Minute | March 2016

TRIA Research Minute | April 2016

TRIA Research Minute | May 2016

TRIA Research Minute | July 2016


If you are interested in participating in one of our currently enrolling studies or would like more information, please contact the TRIA Research Institute: | 952-806-5603

Study Name:

Two-year follow-up after ACL reconstruction in adolescent female athletes

Enrollment Status:Current Study

Principle Investigator(s):

Brad Nelson MD


Marc Tompkins MD

Diagnosis Being Studied:

The Anterior Cruciate Ligament (ACL) is one of the four major ligaments that make up your knee. A tear of the ACL may require reconstruction using another tendon or ligament to substitute the torn ligament. Tears of the ACL are increasing in incidence especially in the younger, active population as participation in more intense training and sports are beginning at an earlier age. As the demographic changes in youth sports and more females become involved, it is pertinent to evaluate if this population can be categorized with the general population or if there are differences between female outcomes and their male counterparts.


Evaluate the long-term outcomes of female athletes who have undergone an ACL reconstruction to determine the rate of return to sport and the re-rupture rate of the ACL graft.

Who Should Participate:

  • Female athletes who underwent an ACL reconstruction at TRIA
  • Between the ages of 14-18 at their time of surgery



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