**4. Instruments**

The most important instrument, of course, is the scope. In wrist small arthroscopes, between 1.9 mm and 2.7 mm, with camera angulated at 30°, are usually used Arthroscopes are shorter (60 to 80 mm), too. The second most important tool is a probe which helps to explore the joint and serves as an extension of the surgeon's finger [8]. A variety of differently angled punches, baskets with or without the option of incorporating a suction mechanism and grasping forceps in various sizes are useful for specific manipulations (**Figure 5**). A motor is fitted with abrasive instruments, such as shavers or burrs of appropriate sizes: 2 to 3 mm in diameter and 6 to 8 cm long. Basic instruments also include a shaver for synovial resection and a burr for bony resection. A special electric bipolar diathermy machine is used for efficient tissue resection by vaporization. An irrigation system is used for joint cleaning. The equipment can be completed by different instruments or kits for specific arthroscopic procedures.

**Figure 5.** *Set of manual instruments for wrist arthroscopy.*
