For chiropractors practicing today, Dr. Warren Hammer’s legacy is particularly visible in several areas that have become familiar components of modern musculoskeletal care: his early work with the Graston Technique and instrument-assisted soft-tissue mobilization; his extensive writing and teaching on functional soft-tissue examination and treatment; his role in bringing fascial manipulation to U.S. clinicians; and his decades spent educating chiropractors and other health professionals.
Growth of Managed Care
Managed care enrollment in the United States is growing at an unprecedented rate. The number of Americans enrolled in preferred provider organizations (PPOs) increased by more than 32 percent in 1993. The number enrolled in health maintenance organizations (HMOs) increased by over 9 percent.
HMOs
1992 -- 38.8 million enrollees
1993 -- 42.3 million enrollees
PPOs
1992 -- 58 million eligible enrollees
1993 -- 76.6 million eligible enrollees
SOURCE: 1. InterStudy
2. American Association of PPOs