Posterior lumbar interbody fusion in spondylilytic sponydlolisthesis

ABSTRACT

Stabilization after decompression of spondylolytic spondylolisthesis is difficult because of a lack of fusional bone mass, gap between the transverse process bases and incompetent anterior disc support. Adding posterior lumbar interbody fusion [PLIF] to the procedure offers anterior support, reduction and a broad fusion base. Eleven female patients, with spondylolytic spondylolisthesis were treated by posterior decompression, pedicle screw fixation and PLIF using 2 pieces of iliac tricortical bone grafts. The patients were followed for a mean of 1 year, and were evaluated both clinically and radiologically. All 11 patients were improved except one who is still complaining of back pain due to graft collapse and non-union