What is the meaning of "ankylosis"?

The term "ankylosis" refers to the abnormal stiffening and immobility of a joint due to the fusion of bones. This condition often results from various arthritic conditions where inflammation leads to the hardening and eventual fusion of the joint surfaces, resulting in a significant loss of function. The process of fusion may occur as a response to chronic inflammation or injury, which causes the joint structures to become rigid and fixed in place. Understanding this term is important in medical contexts, particularly in rheumatology and orthopedics, as it describes a significant limitation in mobility and can affect a patient's quality of life.

The other choices, while related to joint and tissue conditions, do not accurately define ankylosis. For instance, "condition of crooked" pertains to abnormal joint alignment or deformity, "drooping" refers to the sagging or weakness of body parts, and "cartilage inflammation" describes a specific inflammatory condition but does not encompass the fusion characteristic of ankylosis.