According to the company, in addition to the advantages it shares with the Wallis implant, the UniWallis implant offers surgeons the ability to perform surgery from a unilateral approach, preserving the supraspinous ligament.

The UniWallis System has not received clearance from the Food and Drug Administration and is not available for sale in the US.

Zimmer Spine president Steve Healy said the launch of the new UniWallis System offers surgeons a redesigned and reinforced approach to increasing patient mobility.

"The broad array of implant sizes available with the UniWallis System allows us to improve the lives of an even wider range of patients," Healy said.