American Board of Surgical Assistants (ABSA) Orthopedic Practice Test

What is the surgical procedure performed for torn semilunar cartilage in Mr. C's diagnosis?

1. Arthrotomy and meniscectomy of the knee

2. Open reduction and internal fixation

3. Arthroscopy and repair

4. Joint replacement surgery

The correct answer is: Arthrotomy and meniscectomy of the knee

In the context of a torn semilunar cartilage, the most appropriate surgical procedure is arthrotomy and meniscectomy of the knee. Semilunar cartilage, commonly referred to as meniscus, can sustain tears that may require surgical intervention, especially when conservative treatments fail. Arthrotomy involves opening the joint to provide direct access for the surgeon to visualize and address the damaged cartilage. Meniscectomy specifically refers to the removal of the torn portion of the meniscus, which alleviates pain and restores function. This procedure is often indicated in cases of complete tears or irreparable damage where repair is not feasible. Other surgical options may also exist, but they serve different purposes or are indicated for different conditions. For example, arthroscopy and repair would involve minimally invasive techniques typically suited for certain types of meniscal tears that are amendable to repair rather than complete removal. Open reduction and internal fixation are used for fractures rather than cartilage issues. Joint replacement surgery is generally reserved for advanced degenerative conditions such as osteoarthritis, rather than isolated cartilage tears. Thus, performing an arthrotomy and meniscectomy effectively addresses the specific issue of a torn semilunar cartilage, making it the correct choice in this scenario.