Lumbar spine disease constitutes the most common condition affecting the spine. Degeneration among all other pathologies frequently impairs the normal functioning of the lumbar spine. Lumbar interbody fusion (LIF) surgery is, thus, the most common surgery performed by spine surgeons, neuro, and orthopaedic surgeons. LIF techniques have evolved and been modified over decades for the best clinical outcomes. The advent of newer technologies and instrumentation have further minimized tissue damages. Spine surgeons, who need to be versatile, need to have sufficient knowledge about pros and cons of each approach to get the best clinical outcomes. This book is a reference resource to fulfil that purpose. Salient Features: The discussion elaborates on different LIF procedures. Provides an overview algorithm to use different available procedures in various clinical scenarios based on the advantages of each procedure. Eminent international and national experts have shared their expertise and experiences in their chapters.