- Section 1 Patients and their treatment
- Section 2 Background to medicine
- Section 3 Cell biology
- Section 4 Immunological mechanisms
- Section 5 Principles of clinical oncology
- Section 6 Old age medicine
- Section 7 Pain and palliative care
- Section 8 Infectious diseases
- Section 9 Sexually transmitted diseases
- Section 10 Environmental medicine, occupational medicine, and poisoning
- Section 11 Nutrition
- Section 12 Metabolic disorders
- Section 13 Endocrine disorders
- Section 14 Medical disorders in pregnancy
- Section 15 Gastroenterological disorders
- Section 16 Cardiovascular disorders
- Section 17 Critical care medicine
- Section 18 Respiratory disorders
- Section 19 Rheumatological disorders
- 19.1 Joints and connective tissue—structure and function
- 19.2 Clinical presentation and diagnosis of rheumatological disorders
- 19.3 Clinical investigation
- 19.4 Back pain and regional disorders
- 19.5 Rheumatoid arthritis
- 19.6 Spondyloarthritis and related conditions
- 19.7 Infection and arthritis
- 19.8 Reactive arthritis
- 19.9 Osteoarthritis
- 19.10 Crystal-related arthropathies
- 19.11 Autoimmune rheumatic disorders and vasculitides
- 19.12 Miscellaneous conditions presenting to the rheumatologist
- Section 20 Disorders of the skeleton
- Section 21 Disorders of the kidney and urinary tract
- Section 22 Haematological disorders
- Section 23 Disorders of the skin
- Section 24 Neurological disorders
- Section 25 Disorders of the eye
- Section 26 Psychiatric and drug-related disorders
- Section 27 Forensic medicine
- Section 28 Sport and exercise medicine
- Section 29 Biochemistry in medicine
- Section 30 Acute medicine
(p. 4470) Osteoarthritis
- Chapter:
- (p. 4470) Osteoarthritis
- Author(s):
Andrew J. Barr
, and Philip G. Conaghan
- DOI:
- 10.1093/med/9780198746690.003.0450
Clinical osteoarthritis (OA) is a syndrome of joint pain associated with structural deterioration of synovial joints that over time involves the whole joint organ. It is the most common form of arthritis and a leading cause of chronic pain, disability, and socioeconomic burden. Affected individuals report pain (especially on weight bearing) and joint stiffness leading to loss of muscle strength and poor joint function. This results in reduced participation in valued activities, low mood, sleep disturbance, and poor quality of life. The aetiology of joint deterioration, pain, and the interaction of the two remains unclear. OA is associated with a variety of both modifiable and non-modifiable risk factors including obesity, age, gender, occupational injury, trauma, and genetic predisposition. Obesity is the strongest potentially modifiable risk factor.
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- Section 1 Patients and their treatment
- Section 2 Background to medicine
- Section 3 Cell biology
- Section 4 Immunological mechanisms
- Section 5 Principles of clinical oncology
- Section 6 Old age medicine
- Section 7 Pain and palliative care
- Section 8 Infectious diseases
- Section 9 Sexually transmitted diseases
- Section 10 Environmental medicine, occupational medicine, and poisoning
- Section 11 Nutrition
- Section 12 Metabolic disorders
- Section 13 Endocrine disorders
- Section 14 Medical disorders in pregnancy
- Section 15 Gastroenterological disorders
- Section 16 Cardiovascular disorders
- Section 17 Critical care medicine
- Section 18 Respiratory disorders
- Section 19 Rheumatological disorders
- 19.1 Joints and connective tissue—structure and function
- 19.2 Clinical presentation and diagnosis of rheumatological disorders
- 19.3 Clinical investigation
- 19.4 Back pain and regional disorders
- 19.5 Rheumatoid arthritis
- 19.6 Spondyloarthritis and related conditions
- 19.7 Infection and arthritis
- 19.8 Reactive arthritis
- 19.9 Osteoarthritis
- 19.10 Crystal-related arthropathies
- 19.11 Autoimmune rheumatic disorders and vasculitides
- 19.12 Miscellaneous conditions presenting to the rheumatologist
- Section 20 Disorders of the skeleton
- Section 21 Disorders of the kidney and urinary tract
- Section 22 Haematological disorders
- Section 23 Disorders of the skin
- Section 24 Neurological disorders
- Section 25 Disorders of the eye
- Section 26 Psychiatric and drug-related disorders
- Section 27 Forensic medicine
- Section 28 Sport and exercise medicine
- Section 29 Biochemistry in medicine
- Section 30 Acute medicine