B737-700
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 300; Flight Crew Type 12000
ATC Issue All Types; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Requested ATC Assistance / Clarification; Flight Crew Took Evasive Action; General Physical Injury / Incapacitation
Procedure
We were enroute to LAX and beginning our descent on the STAR when we encountered wake turbulence from an Airbus 380; 16 miles ahead of us. I was the Pilot Flying (PF). I immediately maintained control of the aircraft while disengaging automation and reducing AOA and thrust. Roll was unstable until we descended below the wake; where we stabilized the roll and recovered to the desired flight path. I don't recall how much AOB we encountered but at least 20 degrees. We split up our duties and the Pilot Monitoring (First Officer) reported the encounter to ATC and then talked with the Flight Attendants (F/A's) and informed the passengers as to what had happened. The B F/A said she 'may have' scraped her knee; the A and C were fine. After landing and passenger deplaning; we spoke with them to determine if she was hurt. She said she was fine; she looked fine and both the First Officer and I looked at her and her knees and there was nothing; they went on to their next flight.  My biggest concern was if she was injured but she insisted she was ok; and wanted to operate the next flight. I think she was ok; or else I would have taken a different course of action with her. ATC did not inform us that we were following an A380; they had vectored us off course and slowed us but did not say why. Had we known; we would have sat the F/A's down.
B737 Captain reported a Flight Attendant was slightly injured during a wake turbulence encounter on arrival into LAX following an A380.