The Association of Vitamin D Status and Pre-operative Physical Activity in Patients with Hip or Knee Osteoarthritis
Osteoarthritis (OA) afflicts over 12 million elderly Americans and is one of the leading causes of disability amongst non-institutionalized adults. It often leads to decreased mobility, lower functional status, and reduced quality-of-life (QoL). Conservative management of OA includes avoidance of high-impact activities, weight loss, non-steroidal anti-inflammatory drugs (NSAIDs), glucosamine/chondroitin supplements, and physical therapy. When such management is no longer effective, joint replacement surgery may be offered to patients to alleviate pain, optimize function, and improve QoL.