Will the FDA take back ReGen Biologics 510(k) clearance?

The entire orthopedic industry is watching this unprecedented FDA relook?
 
Does the FDA have the authority to take back a 510(k)?   If so, on what basis?   What impact will this have on your 510(k) cleared products?   Read recent publications below…

• FDA Agenda and Meeting Materials   FDA.gov
• FDA Wrestles With Undoing Decision  WSJ (Mar 22)
• UPDATE: FDA:Not Enough Data From ReGen To Show Knee Device Safe WSJ (Mar 19)
• ReGen: Resurrection or Final Nail  OrthopedicsThisWeek (Mar 4)
•  FDA: Menaflex Clearance Shows “Definite Threats” to the 510(k) Process  HealthPointCapital (Sept 24)
• FDA Reports Political Pressure Over Implant  Washington Post (Sept 25)