[Biodegradable devices for annulus fibrosus defect closure after lumbar discectomy].

Objective: To study the properties of materials and select the most suitable one for appropriate device covering annulus fibrosus defect after lumbar discectomy.

Material And Methods: Prototype devices made of poly(L-)lactide, polycaprolactone (PLC) and copolymers of(L-)lactide and ε-caprolactone (LCL) without prior purification were used. Sponge materials were prepared using 1.

[Interbody cage implantation in cadaveric model of the ram spine: biomechanical tests].

Objective: To evaluate the mechanical properties of poly(L-lactide) cage prototypes on cadaveric models of the lumbar spine ram model.

Material And Methods: Prototypes of neck devices were developed on the Ender 2v2 3D printer («Shenzhen Creality 3D Technology Co., Ltd.