**10. Osstell**

Starting in 2001, the first commercially available RFA device was released for clinical use. Over the years the Osstell family of devices has evolved to become more accurate and ultimately smaller (**Figure 7**). The features available to the clinician are broad with the large library of clinically backed literature available at www.osstell.com, and clinical tracking ability through www.osstellconnect.com.

The newest Osstell device is the Beacon which is smaller than previous iterations and lights up with either red, yellow or green to correspond to the values on the ISQ scale (**Figure 8**).

**Figure 7.** *The evolution of the Osstell device.*

**Figure 8.** *The Osstell Beacon.*
