In the following video, Motley Fool health care bureau chief Brenton Flynn takes a look at two medical robotics stocks: MAKO Surgical (UNKNOWN:MAKO.DL) and Intuitive Surgical. Brenton keys investors in on a metric they need to be watching and what those numbers mean in the context of each company's strategy.

Brenton Flynn has no position in any stocks mentioned. The Motley Fool recommends Intuitive Surgical and MAKO Surgical. The Motley Fool owns shares of Intuitive Surgical. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.