Operation Walk

Founded by Lawrence D. Dorr, M.D. | est. 1996


What is Operation Walk?

Operation Walk is an all-volunteer medical humanitarian organization that provides the gift of mobility through life-changing joint replacement surgeries that are provided both globally and in the USA at no cost to the patient. The organization was founded in 1996 by Dr. Lawrence Dorr after a teaching trip to Russia. Dr. Dorr recognized the suffering of impoverished people disabled from joint-related conditions, and committed to helping them. To learn more, click here.



Operation Walk Chapters

London Ontario, Canada

Operation Walk Canada is a not-for profit volunteer medical services organization whose purpose is to restore pain free mobility and improve the quality of life of disadvantaged patients in Ecuador and Guatemala by providing hip and knee replacement surgery.

These patients suffer from debilitating bone and joint disease and have little or no access to medical care. For more information on the London Ontario, Canada chapter, click here.

Alexandria, Virginia

Dr. Gerard Engh of Anderson Orthopedic Clinic and Inova Health System founded Operation Walk Virginia chapter in 2006 and has led teams on surgical missions to Nicaragua and Ecuador. Dr. Engh’s unique vision is to bring doctors   from the host country to the United States to learn by observing the surgical techniques involved in knee and hip  replacement.

For more information on the Alexandria, Virginia chapter, click here.

Baltimore, Maryland

We are a private, not-for-profit, volunteer medical service organization that provides free surgical treatment for patients in developing countries and in the United States. We treat those suffering from disabling arthritis and other debilitating bone and joint conditions.

For more information on the Baltimore, Maryland chapter, please click here.

Denver, Colorado

Operation Walk Denver is the dream of a group of healthcare providers committed to providing free surgical care for those with debilitating arthritis in developing countries. Our missions have provided us with great personal satisfaction and the ability to give back to those in need.

For more information on the Denver, Colorado chapter, please click here. 

Charleston, South Carolina

Walk Nicaragua is a joint venture between OneWorld Health and, Dr. H. Del Schutte of the Charleston Institute of Advanced Orthopedics (CIAO) to provide Total Joint Arthroplasty and other orthopedic surgical services to the citizens of Nicaragua.

For more information on the Charleston, South Carolina chapter, please click here. 

Charlotte, North Carolina

The mission of Operation Walk Carolinas is to provide access to people around the world with the same care that we have in the United States. For more information on the Charlotte, North Carolina chapter, please click here

Chicago, Illinois

The mission of Operation Walk Chicago is to improve the quality of  life of disadvantaged patients around the world through reducing disability from advanced joint disease. Operation Walk Chicago commits to ongoing education and patient care in these impoverished communities, to ensure its contribution will have a long lasting effect.

For more information on the Chicago, Illinois chapter, please click here. 


Operation Walk Idaho is affiliated with Operation Walk International, a private, not-for-profit, volunteer medical services organization that provides free surgical treatment for patients in developing countries, who otherwise have no access to life-improving care for arthritis or other debilitating bone and joint conditions.

For more information on the Idaho chapter, please click here.


Operation Walk Ireland is at ground level working to educate Vietnamese surgeons, anaesthetists, nurses and physiotherapists in Vietnam about joint replacement. We leverage our strong connections with colleagues in the United States to grow our organization. For more information on the Ireland chapter, please click here

Pittsburgh, Pennsylvania

Information about chapter Pittsburgh, Pennsylvania. Our mission at Operation Walk Pittsburgh is to provide life changing education, service and surgery completely free of cost, to patients in need in Pittsburgh and around the world.

For more information on the Pittsburgh, Pennsylvania chapter, please click here. 

Portland, Oregon

Operation Walk Freedom to Move carries out missions with a singular purpose: create movement.

For more information on the Portland, Oregon chapter, please click here. 

Salt Lake City, Utah

When Dr. Aaron Hofmann started the Utah chapter of Operation Walk in 2007, he imagined doing free surgeries in third-world countries with a team of volunteers. That hope became a reality when in just three days in May, Dr. Hofmann performed 44 joint surgeries on disadvantaged patients in San Salvador, El Salvador.

For more information on the Salt Lake City, Utah chapter, please click here.

Syracuse, New York

Operation Walk New York is a non-profit organization that allows severely arthritic patients in countries with underdeveloped health care systems to receive total-joint replacements at no cost. Operation Walk New York, the 13th branch of the organization, opened its doors in November 2010.

For more information on the Syracuse, New York chapter, please click here. 

Winnipeg, Canada

The mission of Operation Walk Manitoba is carried out in partnership with the physicians, surgeons and staff of the Roberto Calderon Hospital in Managua,  Nicaragua. This publicly-funded hospital performs approximately two joint replacements per week for indigent patients that are so impoverished that they cannot afford to pay for medical care.

For more information on the Winnipeg, Canada chapter, please click here.

WOGO (Women Orthopedist Global Outreach)

WOGO provides free life-altering orthopaedic surgery that eliminates debilitating arthritis and restores disabled joints so that women can reclaim their ability to care for themselves, their families and communities. 

For more information on the WOGO chapter, please click here.