Direct Lateral Interbody Fusion (DLIF) Direct Lateral Interbody Fusion (DLIF) Features & Benefits The comprehensive and versatile Tyber Medical Direct Lateral Interbody Fusion DLIF Interbody Spacer was designed for ease of use. The spacer offers the following features and benefits: Optional TyPEEK™ Titanium Plasma Spray Anatomical Endplate Contact Large Graft Window PEEK-Optima™ Core Simple Instrumentation Non-sterile and Sterile Packaging Options Multiple Height Options (7-17mm) Multiple Lordotic Angles (0° to 8°) Multiple Lengths (40 to 60mm) Width Options (18 and 22mm) Retractor System Angled Instruments for Hard to Reach Levels