Abstract
Object The transforaminal lumbar interbody fusion (TLIF) procedure was developed to provide the surgeon with a fusion procedure that may reduce many of the risks and limitations associated with posterior lumbar interbody fusion, yet produce similar stability in the spine. There are few large series with long-term follow-up data regarding instrumented TLIF and placement of 1 diagonal polyetheretherketone (PEEK) cage. The authors performed a prospective study to evaluate the outcome and safety of instrumented TLIF with 1 diagonal PEEK cage for degenerative spondylolisthesis in the Han nationality in China. Methods Between May 2001 and April 2006, 60 patients (35 men and 25 women; mean age 55.5 years, range 45–70 years) with symptomatic degenerative spondylolisthesis underwent the TLIF procedure with 1 diagonal PEEK cage and additional pedicle screw internal fixation at the authors' institution. The inclusion criteria involved degenerative spondylolisthesis (Grades I and II) in patients with chronic low-back...