M81.2: Osteoporosis of disuse

Osteoporosis of disuse is a condition that affects the density and structure of the bones, causing them to become frail and more susceptible to fractures. This particular type of osteoporosis develops when a person is not physically active or a limb is immobilized for a long period of time. Disuse osteoporosis usually develops rapidly and major reasons for its occurrence can be prolonged bed rest, spinal cord injury, or a limb in a cast. Lack of mobility limits the stress and strain on the bones that is typically required for maintaining bone strength. Symptoms may not be prominent but could include mild aches and pains along with a higher likelihood of fractures. Progressive loss of bone mass usually happens silently and without symptoms until the condition is quite advanced. It’s important to understand that bone is a living tissue that remodels throughout life in response to physical activity. Hence, lack of such activity can lead to this condition.