I had my L4-5 disc replaced with a Spinal Kinetics M6-L on July 13, 2011.  My status at 3 months is here.

M6-L, Large, 10mm, 6 degree lordosis.

Post-Op Physio Routine:

3 weeks (very gently):

6 weeks:

9 weeks:

11 weeks:

17 Weeks: