M81.6: Localized osteoporosis [Lequesne]

Localized osteoporosis, also known as Lequesne's disease, is a specific type of osteoporosis that primarily affects one particular region of your body. Unlike general osteoporosis, which weakens the entire skeletal system, localized osteoporosis impacts a specific set of bones or even a single bone. This condition results in reduced bone mineral density, leading to fragile bones that are more susceptible to fractures. The cause of localized osteoporosis isn't entirely known, but it can occur as a result of other factors such as disuse or immobilization of a specific area, certain types of arthritis, or following an injury. Symptoms usually aren't noticeable until a fracture occurs. However, some people may experience pain or tenderness in the affected area, as well as a decrease in physical function, dependent on the location of the osteoporosis. While it can occur in any bone, it's more commonly observed in hip and knee joints.