Cantilever TLIF with structural allograft and RhBMP2 for correction and maintenance of segmental sagittal lordosis: long-term clinical, radiographic, and functional outcome.

Study Design/setting: Prospective cohort study in a tertiary care spine center.

Objective: The effectiveness of the cantilever transforaminal lumbar interbody fusion (C-TLIF) technique in creating and maintaining lordosis, avoiding nerve problems, and obtaining fusion was studied.

Summary Of Background Data: C-TLIF is a microscope-assisted transforaminal lumbar interbody fusion technique, emphasizing no dural retraction with placement of structural allograft and RhBMP2 anteriorly under the cortical apophyseal ring, followed by middle column cancellous autograft placed under compression with posterior pedicle spinal instrumentation.