Which step involves the scrub person holding the dissector rotation wheel?

The involvement of the scrub person holding the dissector rotation wheel during surgery specifically aligns with a critical part of the procedure's workflow. In the third step, the scrub person actively engages with the instruments to facilitate surgical movements, such as rotating the dissector for optimal positioning. This step is crucial as it allows the surgeon to have both hands free to focus on the dissection while the scrub person ensures that the dissector is properly oriented and controlled. The coordination between the surgeon and the scrub person is vital for success, particularly during intricate parts of the operation, where precision and timing are necessary.