About JRSI

The Joint Replacement Surgeons of Indiana (JRSI) Foundation is a 501(c)3 not-for-profit medical research organization based at the Center for Hip & Knee Surgery at Franciscan St. Francis Hospital in Mooresville, Indiana.  The organizational mission of the JRSI Foundation is: To foster the advancement of hip and knee replacement surgical procedures, implants, and survivorship in order to improve the long-term function and well-being of the patients who suffer from debilitating arthritis and associated disorders.

JRSI Logo

The JRSI Foundation was incorporated in 2002 under the direction of Merrill A. Ritter, MD in order to establish an organization focused on the long-term clinical success of hip and knee replacement surgeries.  Two primary organizational focuses exist: (1) To discern the effective treatment of hip and knee arthritis; sharing data through peer-reviewed manuscripts to ultimately improve patient care and outcomes.  (2) To educate undergraduate, graduate, medical students, fellows and surgeons in the investigation and application of the current best practices in total joint replacement.

In addition to its collaboration with Rose-Hulman in biomedical engineering research, JRSI Foundation actively evaluates surgical technique and clinical practices through clinical trials and through clinical records of greater than 25,000 knee and hip replacement surgeries conducted by our orthopaedic surgeons over the past 30 years.  At the main offices in Mooresville, Indiana, the JRSI Foundation maintains an active summer student research internship program, sponsors surgical fellowships, and hosts an annual orthopaedic research symposium each May.


Full-time JRSI Foundation research staff include:

Merrill Ritter, MD; Executive Director Kenneth Davis, MS; Lead Statistician
Amy Robertson, RN; Research Director Matthew Brunsman, MS; Statistician
Scott Small, MS; Engineering Director Carol Cope; Database Manager
Ellen Taylor; Patient Follow-up