International Society of Arthoscopy, Knee Surgery, and Orthopaedic Sports Medicine
International organization of surgeons, established to develop, support and promote charitable, scientific and literary works that disseminate and further the increased knowledge of arthroscopy, knee surgery and orthopaedic sports medicine. Links to membership, meetings, awards, publications, and teaching centers.

Internet Society of Orthopaedic Surgery and Trauma
The mission of the Society is to improve the quality of orthopaedic information on the Internet by providing a gateway, at all levels, to patient information, teaching material, CME, current research and discussion, by posting high quality orthopaedic content, by attracting onto the Internet a wider range of material and by setting standards for content quality.

Jaw Joints & Allied Musculo-Skeletal Disorders Foundation, Inc. (JJAMDED / JJAMSDF)
Promotes education about healthy jaw joints and prevention of TMJ disorders. Conducts and sponsors relevant research. Links to events, news items, newsletter, and some online patient education materials.

Mid-America Orthopaedic Association
Formed in 1982 to serve orthopaedic surgeons in a twenty state area to extend the art and science of orthopedic surgery. Meeting information and meeting abstracts.Links to information about regional meetings and educational grants.

National Association of Orthopaedic Technologists
Certififies Orthopaedic Technologists. Links to membership information, information about the association's journal, recognized school listing, employment opportunities, and message board.

National Osteoporosis Foundation (NOF)
The basics about osteoporosis, including treatment, prevention, and risk factors. Links to find a doctor, advocacy, and support groups. Includes resources for professionals.

North American Institute of Orthopaedic Manual Therapy
Founded in the United States by Canadian physiotherapists, manual therapy instructors and examiners to advance orthopaedic manual therapy. The Web site provides information on the organisation including mission and objectives, courses, faculty, news, and full-text access in PDF to the NAIOMT newsletter from 1998 onwards.

North American Spine Society (NASS)
Provides information on meetings, publications, and CME opportunities. Includes information for spine care providers and spine patients.

Orthopaedic Trauma Association
Educational & scientific society regarding the care & treatment of injuries to the musculoskeletal system. Links to calendar, news items, discussion forums, education resources, meetings/courses, membership, and research.

Orthopedic Research Society (ORS)
Provides an overview of the society, including announcements, membership information, the current Board of Directors and calls for papers.

Osteogenesis Imperfecta Foundation
Basic information for consumers and health professionals about this \"brittle bone\" disorder\". Links to medical treatments and grant information for health researchers.

Pediatric Orthopaedic Society of North America
Includes links to fellowships and awards and membership information.

Ruth Jackson Orthopaedic Society
A support and networking group for women orthopaedic surgeons. Include link to award, fellowship, and scholarship information. Links to meeting and membeship information.