What is Osteoarthritis?
Osteoarthritis is the most common form of arthritis, characterized by the gradual breakdown of cartilage in joints, leading to pain, stiffness, and reduced mobility. This degenerative joint disease primarily affects weight-bearing joints such as the knees, hips, and spine, as well as frequently used joints like those in the hands. While often considered a natural part of aging, osteoarthritis affects people of all ages and is a leading cause of disability worldwide. The condition impacts over 500 million people globally and is more common in women than men, particularly after menopause.
Key statistics
| Global prevalence | Over 500 million people affected worldwide |
| Age of onset | Most common after age 50, but can occur earlier |
| Gender distribution | 60% female, 40% male in those over 65 |
| Disability impact | Leading cause of disability in adults over 65 |
Symptoms
Common symptoms include: Joint pain, stiffness, swelling, reduced range of motion, grinding sensation (crepitus), joint tenderness, and morning stiffness lasting less than 30 minutes.
Early symptoms typically begin with mild joint discomfort after activity or periods of inactivity. Patients often notice stiffness when getting up in the morning or after sitting for extended periods, which usually improves with gentle movement.
Progressive symptoms include worsening pain that may occur even at rest, increased joint swelling, and noticeable reduction in joint flexibility. The affected joints may feel warm to the touch, and a grinding or crackling sensation may be felt during movement.
Advanced symptoms can include severe pain that interferes with daily activities, significant joint deformity, muscle weakness around affected joints, and complete loss of cartilage leading to bone-on-bone contact. Sleep disturbances due to pain are common in advanced stages.
Causes and risk factors
Osteoarthritis results from a complex interplay of mechanical, biological, and genetic factors that lead to cartilage breakdown and joint damage. While previously thought to be purely “wear and tear,” research shows it involves active inflammatory processes and metabolic changes within joint tissues.
Primary risk factors include advancing age (the strongest predictor), female gender, genetic predisposition, and obesity. Family history plays a significant role, with genetic factors accounting for approximately 40-60% of osteoarthritis risk in the hands and knees.
Mechanical factors include previous joint injuries, repetitive stress from occupational activities, joint malalignment, and muscle weakness. Athletes and workers who perform repetitive joint motions have increased risk.
Metabolic factors such as diabetes, metabolic syndrome, and hormonal changes (particularly estrogen deficiency in postmenopausal women) contribute to cartilage degradation. Certain inflammatory conditions and crystal arthropathies can also predispose to secondary osteoarthritis.
Prevention
Evidence-based prevention strategies focus on maintaining healthy joints throughout life. Regular physical activity, particularly low-impact exercises like swimming, cycling, and walking, helps maintain joint mobility and strengthen supporting muscles while avoiding excessive joint stress.
Weight management is crucial, as every pound of excess weight places additional stress on weight-bearing joints. Studies show that losing just 10-15 pounds can significantly reduce knee osteoarthritis progression in overweight individuals.
Injury prevention through proper exercise techniques, appropriate protective equipment during sports, and workplace ergonomics can reduce the risk of joint damage that leads to secondary osteoarthritis. Muscle strengthening exercises, particularly for the quadriceps and core muscles, help support and protect joints.
Early treatment of inflammatory joint conditions and correction of joint alignment problems can prevent secondary osteoarthritis development.
Complications
Without proper management, osteoarthritis can lead to progressive joint destruction, chronic pain, and significant functional disability. Advanced osteoarthritis may result in complete cartilage loss, bone spurs (osteophytes), and joint deformity that severely limits mobility.
Chronic pain can lead to decreased physical activity, muscle atrophy, and cardiovascular deconditioning. This creates a cycle where reduced activity worsens joint stiffness and muscle weakness, further accelerating functional decline.
Secondary complications include increased fall risk due to joint instability, chronic pain syndrome, depression and anxiety related to functional limitations, and social isolation due to mobility restrictions. Sleep disorders are common due to pain, affecting overall health and quality of life.
Diagnosis
Osteoarthritis diagnosis is primarily clinical, based on patient history, physical examination, and imaging studies. Healthcare providers assess symptom patterns, joint examination findings, and functional limitations.
Clinical criteria include joint pain that worsens with activity and improves with rest, morning stiffness lasting less than 30 minutes, and reduced range of motion. Physical examination may reveal joint tenderness, swelling, crepitus, and muscle weakness.
Imaging studies include X-rays showing joint space narrowing, osteophyte formation, subchondral bone sclerosis, and bone cysts. Magnetic resonance imaging (MRI) provides detailed visualization of cartilage, menisci, and soft tissues but is not routinely required for diagnosis.
Laboratory tests are typically normal in osteoarthritis but may be used to exclude inflammatory arthritis. Synovial fluid analysis can help differentiate osteoarthritis from other joint conditions when joint effusion is present.
Treatment
Treatment focuses on pain management, maintaining joint function, and slowing disease progression through a combination of non-pharmacological and pharmacological approaches.
Non-pharmacological treatments form the foundation of osteoarthritis management. Physical therapy helps maintain joint mobility and strengthen supporting muscles. Occupational therapy provides adaptive strategies and assistive devices for daily activities. Weight loss and regular exercise are essential for long-term management.
Pharmacological treatments begin with acetaminophen for mild pain. Topical NSAIDs like diclofenac gel provide localized pain relief with fewer systemic side effects. Oral NSAIDs including ibuprofen, naproxen, and celecoxib are used for moderate pain but require monitoring for cardiovascular and gastrointestinal risks.
Intra-articular treatments include corticosteroid injections for acute flares and hyaluronic acid injections for knee osteoarthritis, though evidence for the latter remains mixed.
Surgical interventions are considered when conservative treatments fail. Options include arthroscopy for loose body removal, osteotomy for joint realignment, and joint replacement surgery for end-stage disease.
Prognosis
Osteoarthritis prognosis varies widely depending on joints affected, disease severity at diagnosis, and individual factors. While generally progressive, the rate of progression can be significantly slowed with appropriate management.
With early intervention and comprehensive treatment, many patients maintain good functional capacity and quality of life for years. Regular exercise, weight management, and proper medical care can substantially slow disease progression and preserve joint function.
Without treatment, osteoarthritis typically progresses, leading to increasing pain, functional limitation, and potential need for joint replacement surgery. However, the disease progression is often slow, occurring over years to decades rather than months.
Life expectancy is generally not affected by osteoarthritis itself, though associated complications such as reduced mobility and increased fall risk may impact overall health outcomes.
Quality of life
Living well with osteoarthritis requires active self-management and lifestyle adaptations. Regular low-impact exercise such as swimming, water aerobics, tai chi, and yoga helps maintain joint flexibility while strengthening supporting muscles.
Dietary considerations focus on maintaining healthy weight and reducing inflammation. An anti-inflammatory diet rich in omega-3 fatty acids, fruits, vegetables, and whole grains may help manage symptoms. Adequate calcium and vitamin D support bone health.
Daily living adaptations include using ergonomic tools, wearing supportive shoes, applying heat or cold therapy for symptom relief, and pacing activities to avoid overexertion. Joint protection techniques learned through occupational therapy can prevent further damage.
Mental health support is crucial, as chronic pain can lead to depression and anxiety. Cognitive-behavioral therapy, support groups, and mindfulness techniques help patients cope with the emotional aspects of chronic illness.
Sleep hygiene is important since pain can disrupt sleep patterns. Creating a comfortable sleep environment and establishing consistent bedtime routines can improve rest quality.
Pregnancy and fertility
Osteoarthritis typically does not directly affect fertility or pregnancy outcomes. However, pregnancy-related weight gain and hormonal changes may worsen joint symptoms, particularly in the spine and weight-bearing joints.
Medication management during pregnancy requires careful consideration. Acetaminophen is generally safe throughout pregnancy, while NSAIDs should be avoided, especially in the third trimester due to risks of premature closure of the ductus arteriosus and other complications.
Physical therapy and non-pharmacological pain management techniques become particularly important during pregnancy. Prenatal exercise programs can help maintain joint function while preparing for delivery.
Children
Primary osteoarthritis is rare in children, but secondary osteoarthritis can develop following joint injuries, infections, or congenital joint abnormalities. Juvenile idiopathic arthritis can lead to secondary osteoarthritis if not properly managed.
When osteoarthritis occurs in children, treatment focuses heavily on maintaining growth and development while managing symptoms. Physical therapy and activity modification are preferred over medications when possible.
School accommodations may include modified physical education activities, ergonomic seating, and allowances for movement breaks during long periods of sitting.
Transition planning to adult rheumatology care typically begins in the mid-to-late teenage years to ensure continuity of care.
When to see a doctor
Seek routine medical evaluation for persistent joint pain lasting more than a few weeks, morning stiffness, or gradual reduction in joint mobility that interferes with daily activities.
Urgent medical attention is needed for sudden severe joint pain, signs of joint infection (fever, severe swelling, warmth, redness), or significant trauma to a joint. Locked joints or sudden inability to bear weight also require immediate evaluation.
Red flag symptoms include severe pain that doesn’t respond to over-the-counter medications, signs of infection, or neurological symptoms such as numbness or tingling that might indicate nerve compression.
Regular follow-up visits allow monitoring of disease progression and treatment effectiveness, typically every 3-6 months for active disease management.
Regional context
GMJ welcomes contributions from regional researchers to build the evidence base for osteoarthritis in the Caucasus. Limited data suggests that osteoarthritis prevalence in the region may be influenced by genetic factors, traditional occupational activities, and dietary patterns unique to Georgian, Armenian, and Azerbaijani populations.
Research and clinical trials
Current research focuses on disease-modifying osteoarthritis drugs (DMOADs) that could slow or halt cartilage degradation. Promising areas include anti-inflammatory biologics, cartilage regeneration techniques, and gene therapy approaches.
Stem cell therapy and platelet-rich plasma injections are under investigation, though evidence remains limited. Advances in joint replacement materials and techniques continue to improve surgical outcomes.
Biomarker research aims to identify individuals at risk for rapid progression, enabling earlier intervention. Patients interested in clinical trials can search ClinicalTrials.gov for relevant studies.
Frequently asked questions
Will exercise make my osteoarthritis worse?
No, appropriate exercise actually helps osteoarthritis by strengthening muscles, maintaining joint flexibility, and reducing pain. Low-impact activities like swimming, walking, and cycling are particularly beneficial.
Is osteoarthritis hereditary?
Genetics play a significant role, accounting for 40-60% of osteoarthritis risk, particularly in hand and knee osteoarthritis. However, lifestyle factors also significantly influence disease development and progression.
Do supplements like glucosamine and chondroitin help?
Evidence for these supplements is mixed, with some studies showing modest benefits while others show no effect. They are generally safe but should be discussed with healthcare providers.
When is joint replacement surgery necessary?
Joint replacement is considered when conservative treatments fail to provide adequate pain relief or function, and quality of life is significantly impacted. Age alone is not a determining factor.
Can diet affect osteoarthritis symptoms?
While no specific diet cures osteoarthritis, maintaining healthy weight and following an anti-inflammatory diet may help reduce symptoms and slow progression.
Support and resources
International organizations:
– Arthritis Foundation: https://www.arthritis.org
– Osteoarthritis Research Society International (OARSI): https://www.oarsi.org
– European League Against Rheumatism (EULAR): https://www.eular.org
– World Health Organization (WHO): https://www.who.int
– International Association for the Study of Pain: https://www.iasp-pain.org
Patient support groups provide valuable peer connections and practical advice for daily management challenges.
Related conditions
Rheumatoid arthritis – An autoimmune inflammatory arthritis that affects multiple joints symmetrically and can cause joint deformity if untreated.
Fibromyalgia – A chronic pain condition characterized by widespread musculoskeletal pain, often coexisting with osteoarthritis.
Gout – A crystal arthropathy causing sudden, severe joint pain, most commonly affecting the big toe, which can lead to secondary osteoarthritis.
Psoriatic arthritis – An inflammatory arthritis associated with psoriasis that can mimic osteoarthritis but requires different treatment approaches.
Spinal stenosis – Narrowing of the spinal canal often associated with spinal osteoarthritis, causing back pain and leg symptoms.
Sources: Orphanet (orpha.net), OMIM, GeneReviews (NCBI), WHO ICD-11, UpToDate, relevant EULAR/ACR/WHO guidelines. This article is for informational purposes only and does not constitute medical advice. Content licensed under CC BY 4.0.
Cite this page
GMJ News Desk. “Osteoarthritis.” GMJ News — Georgian Medical Journal, 1 June 2026. https://news.gmj.ge/condition/osteoarthritis/
Licensed under CC BY 4.0. Free to share with attribution to GMJ News.Sources: Orphanet (orpha.net), OMIM, GeneReviews (NCBI), WHO ICD-11, EULAR/ACR guidelines. Schema.org MedicalCondition structured data included.
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