Mako files for $86m initial offering:

Developer of implants used in minimally-invasive knee surgery Mako Surgical is looking to raise around $86m via an initial public offering on the Nasdaq stock exchange. The company will be looking to use the proceeds of the offering to drive sales of its Makoplasty technology, which includes its robotic Haptic guidance system, implants and disposable knee surgery devices. The second-generation of the Haptic guidance system is expected to be launched in the first half of 2009, into the knee replacement and resurfacing market, which Mako claims was worth more than $2.7bn in 2006. The Fort Lauderdale, Florida-based firm expects to float under the symbol "MAKO".