Major indication (s) for arthroplasty -a) Osteoarthritis of hipb) Ankylosis of elbowc) Ununited tibial fractured) Ununited femoral neck fracturee) TB spine
**Core Concept**
Arthroplasty is a surgical procedure that involves the replacement or removal of a joint with an artificial joint. It is primarily used to alleviate pain and restore function in severely damaged or arthritic joints. The major indications for arthroplasty include severe degenerative joint diseases, traumatic joint injuries, and certain types of infections.
**Why the Correct Answer is Right**
The correct answer is related to the indication of arthroplasty for severe degenerative joint diseases. Osteoarthritis of the hip (option a) is a common indication for hip replacement surgery, which is a type of arthroplasty. This is because the hip joint is subjected to significant stress and wear and tear over time, leading to cartilage degeneration and bone-on-bone contact. Arthroplasty helps to alleviate pain, improve mobility, and restore function in patients with severe osteoarthritis of the hip. The procedure involves replacing the damaged joint with an artificial prosthesis, which is designed to mimic the natural movement and function of the joint.
**Why Each Wrong Option is Incorrect**
**Option B:** Ankylosis of the elbow (option b) is a condition characterized by the fusion of the bones in the elbow joint, leading to stiffness and loss of movement. While arthroplasty may be used in some cases to restore movement in the elbow, ankylosis is not a common indication for this procedure. Instead, arthroplasty may be used to treat conditions such as osteoarthritis or rheumatoid arthritis that have caused joint damage.
**Option C:** Ununited tibial fracture (option c) is a type of fracture that does not heal properly, leading to persistent pain and disability. While arthroplasty may be used in some cases to treat ununited fractures, it is not a common indication for this procedure. Instead, other surgical options such as bone grafting or internal fixation may be used to promote healing and restore function.
**Option D:** Ununited femoral neck fracture (option d) is a type of fracture that occurs in the neck of the femur and does not heal properly. While arthroplasty may be used in some cases to treat ununited fractures, it is not a common indication for this procedure. Instead, other surgical options such as hip replacement or internal fixation may be used to promote healing and restore function.
**Option E:** TB spine (option e) is a type of infection that affects the spine and can cause significant pain, stiffness, and disability. While arthroplasty may be used in some cases to treat spinal infections, it is not a common indication for this procedure. Instead, other surgical options such as spinal fusion or debridement may be used to promote healing and restore function.
**Clinical Pearl / High-Yield Fact**
Arthroplasty is a highly effective treatment option for severe degenerative joint diseases, such as osteoarthritis of the hip. It is essential to identify patients who would benefit from this procedure, as it can significantly improve their quality of life and restore function.
**Correct Answer:** A. Osteoarthritis of the hip.