Drew, I recall talking to Zeegers years ago about the customization attributes of the Activ L. At the same show, I also talked to the mfrs -- I liked the myriad configurations for surgeons to choose the best sizes and footprints to the individual patient. Zeegers had a huge influence on that design if I recall correctly.
That highly flexible config option was born out of necessity to minimize complications like subsidence and HO.
Dieter, danke für die Referenz. Ich hoffe, dass alles gut ist.