Certified Surgical Technologist (CST) Practice Exam

Which of the following instruments creates the trough on the anterior glenoid rim during a Bankart procedure?

1. Periosteal elevator

2. Bone cutting forceps

3. Shaver with abrader tip

4. Reciprocating saw

The correct answer is: Shaver with abrader tip

The shaver with abrader tip is used to create the trough on the anterior glenoid rim during a Bankart procedure because its design allows for precise and controlled resection of bone and soft tissue. The shaver's abrader tip effectively removes the thin layer of bone while minimizing damage to the surrounding structures, which is crucial in this procedure aimed at repairing a Bankart lesion associated with shoulder instability. In a Bankart repair, the creation of a well-defined trough is essential for proper engagement of the surgical anchors that will later hold the labrum and glenoid together. The shaver with abrader tip is specifically designed to handle such delicate tasks where control and precision are paramount, making it the ideal choice for this step in the surgical procedure. Other instruments, while useful in various surgical contexts, do not perform this specific function as effectively. For instance, a periosteal elevator is geared more towards dissecting soft tissue and lifting periosteum rather than creating bone cavities. Bone cutting forceps are typically utilized for cutting through denser structures and not for detailed surface modifications on the bone. The reciprocating saw, while effective for larger cuts or in more extensive bone surgeries, is too aggressive for the delicate work required on the anterior glenoid rim