Bursitis is commonly associated with which of the following?

Bursitis is a condition characterized by inflammation of the bursae, which are small, fluid-filled sacs that cushion the bones, tendons, and muscles near joints. The primary function of bursae is to reduce friction and allow for smooth movement of these structures. When bursitis occurs, it leads to fluid accumulation and inflammation around the affected joints, which can cause pain and limit range of motion.

The correct answer highlights this key aspect of bursitis, emphasizing the role of fluid accumulation and inflammation. In contrast, other conditions listed may encompass symptoms that are somewhat related but are not specific to bursitis. For example, joint stiffness after injury can occur with various injuries and conditions, not just bursitis. Tendon degeneration refers to a different process affecting the tendons rather than the bursae, and bone fracture healing involves the restoration of bone integrity, which is unrelated to the inflammation of the bursae. Thus, fluid accumulation and inflammation are central to understanding bursitis, making this the most accurate choice.