The overlap between venous disease and arthritis in the clinical presentation of older patients creates a diagnostic challenge that vascular specialists encounter regularly. Both conditions produce leg pain, both are common in the older adult population, both worsen with activity and improve with rest to varying degrees, and both can coexist in the same patient — making it genuinely difficult to attribute symptoms correctly without careful assessment. Mistaking venous disease for arthritis, however, leads to treatments that may manage the arthritis component while leaving the venous disease untreated and progressive.
Osteoarthritis of the knee and hip is extremely prevalent in older adults, and its symptoms — joint pain, stiffness, reduced range of motion, and activity limitation — frequently motivate patients to reduce their physical activity. This reduction in activity, while understandable from an arthritis management perspective, removes the calf muscle pump activity that is essential for venous return, worsening any underlying venous insufficiency. The result is a patient whose leg swelling and discomfort has two contributing causes — venous and arthritic — both of which need to be addressed for optimal management.
The distinguishing features of venous versus arthritic pain require careful clinical assessment. Arthritic pain is typically localized to specific joints, associated with palpable joint tenderness and crepitus on movement, and worsened by the specific movements that load the affected joint. Venous pain is more diffuse, not joint-specific, worsened by prolonged standing or sitting rather than specific movements, and associated with swelling that is not confined to the joint. In practice, many older patients have both conditions simultaneously, and the contributions of each to the overall symptom burden can be difficult to disentangle.
The diagnostic key is to ensure that venous disease is not overlooked in older patients presenting with leg pain and swelling attributable to arthritis. This requires that any patient with leg swelling — even in the context of known arthritis — undergo venous assessment to exclude significant venous insufficiency as a contributing factor. The simple addition of duplex ultrasound evaluation to the assessment of an older patient with leg swelling and pain provides information that guides treatment decisions for both conditions simultaneously.
Vascular specialists advocate for a multidisciplinary approach to the management of older patients with coexisting arthritis and venous disease, involving both rheumatological and vascular management aimed at each condition’s specific needs. Physiotherapy interventions that maintain calf muscle strength and walking capacity within the limits of arthritic pain support venous health while managing the arthritic components of the condition. This integrated approach produces better outcomes than siloed management of each condition in isolation.