In each condition, doctors use different kinds of equipment, so you need to ensure that you have all instruments for Orthopedic Surgery. If something is missing or damaged, you need to purchase a new surgical tool as soon as possible. But, when it comes to choosing a product, there are many things to keep in your mind. As you know that most major brands release new machines every 3 to 5 years. So, when shopping for a new power instrument be sure to inquire with your sales rep about when the next generation will be released.