joimax has launched a 3D-printed titanium alloy – the EndoLIF on-cage – and its iLESSYS Delta interlaminar system, at the 30th annual North American Spine Society (NASS) meeting in Chicago.
The EndoLIF on-cage is manufactured utilising a special electron beam melting (EBM) technology. Joimax claims that the porous surface with a diamond cell structure displayed by the cage provides an optimal base for cell proliferation and bone growth. Two large implant graft windows, which are filled with autogenous bone, allow for bridging bone to further support fusion. Similar to a mini-TLIF approach, the EndoLIF on-cage implant allows surgeons to utilise a mini-open or an inter-muscular approach into the intervertebral disc space facilitating endoscopic-assisted fusion.
Ralf Wagner, Ligamenta Spine Center, Frankfurt, and Bernd Illerhaus, ONZ Spine Center, Recklinghausen, are two German spine specialists who have performed more than 200 of the 800 EndoLIF on-cage procedures in Europe. “The access is dura and nerve-gentle, preserves better dorsal bony structures and limits scar tissue formation because of the stepwise tissue dilation,” says Wagner.
iLESSYS Delta, an advanced development of the joimax iLESSYS standard technology, is suitable for dorsal and dorso-lateral treatment of central spinal canal stenosis. The iLESSYS Delta system enables a large area to be decompressed by means of a more widened interlaminar approach, guided by a full endoscopic direct visualisation technique. The new and specific instrument set includes specially developed tools that joimax claims can permit an extensive, yet gentle, tissue-sparing decompression. A new endoscope with a 6mm working channel allows the use of large shaver blades designed for bone and tissue resection, along with a range of instruments to be applied under full endoscopic view.
“We are impressed by the new endoscope which delivers outstanding image quality. With the specialised instrument set, it is finally possible to achieve decompression of central spinal canal stenosis,” says Albert E Telfeian, Department of Neurosurgery, Rhode Island Hospital, Providence, USA, and Jian Shen, of Mohawk Valley Orthopedics, P.C., New York, USA concurs. The two surgeons gained experience with the new system during a meeting at the Anatomy Department of the University of Mainz, Germany, earlier this year, and during the cadaveric training course at Vitruvian lab in Baltimore, Maryland, held last week.