In an attempt to remain unprejudiced and consider the other options I've thrown heavy caution to the idea of Zimmer involvement. Mainly due to it being an unknown. The idea I stumbled upon of AMDA using Omni liners in clinical studies involving the infinia hip then Omni exiting the picture. Then a new hip study involving a Zimmer liner produced in Indiana with the unknown strategic partner wears heavily in my analysis here. The only words of caution in the spirit of critical thinking I can throw out now, based on these given facts is:...well, look at what happened with Omni. nothing came to fruition.
I also question any clinical data revealed in South Africa. Based on the fact it occurred in the medical fields of South Africa. The lack of quality medical care adds a variable too great here to take any data seriously directly related to the facts of the quality of medical care found in South Africa.