Anterior Lumbar Interbody Fusion (ALIF) Features & Benefits The comprehensive and versatile Tyber Medical ALIF Interbody Spacer was designed for ease of use. The Anterior Lumbar Interbody Fusion 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 Anterior Lumbar Interbody Fusion Options Lateral, Anterolateral or Anterior Attachment Multiple Lordotic Angles (6 to 8°) Multiple Lengths (28 to 38mm) Width Options (24 and 28mm)