A study compared the effectiveness of manual therapy (performed by a Chiropractor), physical therapy (performed by a Physical Therapist), and medical care (delivered by a Medical Physician) for patients with neck pain. The success rate at 7 weeks was twice as high for the manual therapy group (68.3%) compared to the medical care group. Patients receiving manual therapy had fewer absences from work than patients receiving physical therapy or medical care for their neck pain. Manual therapy and physical therapy also resulted in statistically significant less analgesic (pain relief medication) use.
Annals of Internal Medicine, 2002