What to Do About Knee Pain in Middle-Aged and Older Adults

Chronic knee pain is a common complaint among middle-aged and older adults, often stemming from degenerative joint changes, overuse injuries, or underlying systemic conditions. The most frequent cause is osteoarthritis—a progressive disorder characterized by cartilage breakdown, synovial inflammation, subchondral bone remodeling, and eventual joint space narrowing. Other potential contributors include meniscal tears, patellofemoral pain syndrome, tendinopathies (such as patellar tendinopathy), gout or pseudogout, rheumatoid arthritis, and less commonly, infection or tumor.

Accurate diagnosis requires a thorough clinical evaluation—including detailed history taking, physical examination, and targeted imaging. Radiographs remain the first-line imaging modality to assess joint space narrowing, osteophyte formation, and subchondral sclerosis. Magnetic resonance imaging (MRI) may be indicated when soft-tissue pathology—such as meniscal or ligamentous injury—is suspected, or when symptoms are atypical or refractory to initial management. Laboratory testing, including serum uric acid, inflammatory markers (e.g., ESR, CRP), and autoimmune serologies (e.g., RF, anti-CCP), helps differentiate inflammatory or metabolic arthropathies.

Management follows a stepwise, multimodal approach grounded in evidence-based guidelines. First-line interventions emphasize nonpharmacologic strategies: structured exercise programs focusing on quadriceps and hip abductor strengthening, low-impact aerobic activity (e.g., swimming, cycling), weight optimization for overweight individuals, and patient education regarding joint protection and activity pacing. Topical NSAIDs are preferred over oral agents for localized pain due to superior safety profiles; oral NSAIDs should be used cautiously—especially in older adults—with attention to gastrointestinal, renal, and cardiovascular risks. Intra-articular corticosteroid injections provide short-term symptomatic relief in flare-ups, while hyaluronic acid injections remain controversial and are not routinely recommended outside of specific clinical trial contexts.

For patients with persistent, disabling pain unresponsive to conservative measures—and confirmed structural disease on imaging—surgical consultation is warranted. Total knee arthroplasty demonstrates robust long-term efficacy and functional improvement in appropriately selected candidates with advanced osteoarthritis. Emerging therapies, including regenerative approaches like platelet-rich plasma (PRP) injections, show modest benefit in select populations but lack conclusive evidence for routine use. Ultimately, shared decision-making—integrating clinical findings, patient preferences, functional goals, and comorbidities—is essential to optimizing outcomes and preserving quality of life.