I received a response from Dr. Zeegers after sending him the referenced document / marketing of the M6 disc. Before I post his response I wanted to add that I completely agree with his initial assessment as I too have concluded what he asserts. The M6 is not a bad disc, it is just not superior to other choices out there. It appears that Dr. Zeegers really likes the Activ-L. But, there is the LP-ESP, the Freedom and the Baguera-L that are excellent choices as well.
"
HAVE TO STUDY all 64 pages pdf doc, but in a glimpse i do not see any superiority of M6L over Activ L
- the so called compression=damping effect has never been proved as significant.
- cannot find really custom sizes of M6 implant, 2 sizes medium 35mm W x 27mm and large 39x30 only! (undersizing risk !)
- no special M6 implant design for L5S1 (remnant L5S1 problems !)
- the instrumentation tools from M6 are absolutely inferior to Activ L (no oblique approach, no reliable revision tools)
+ for example see superior size offer in Activ L discs in brochure pdf
+ for example see superior instrumentation offer in Activ L brochure pdf
regards zeegers
"
Regards,
Nathan
Note:
This hour of suffering... Part 32 - The End in Sight