Posterior lumbar interbody fusion in treatment of lumbar spondylolithesis

ABSTRACT

This prospective study was conducted to evaluate the results of Posterior Lumbar Interbody Fusion in treatment of Lumbar Spondylolithesis. This study included 20 patients with Lumbar Spondylolithesis [9 Grade I, 8 Grade II and 3 Grade III]. All patients had low back pain and 17 of them had also associated radicular pain. There were 13 females and 7 males. The patients aged between 34 and 55 years with an average 37.5 years. Posterior Lumbar Interbody Fusion with two hallow threaded cylindrical cages filled with cancellous bone graft with the use of transpedicular screws fixation was done in all patients. All patients were followed up for east 2 years. Satisfactory osseous fusion was recorded in 17 patients [85%] after one year. Two patients had Satisfactory osseous fusion at the end of 2 years. Only one patient had no fusion at the end of the follow up. There was significant decrease in pain and significant functional improvement. There was no nerve root affection after operation. So we recommend the posterior Lumbar Interbody Fusion. In treatment of Lumbar Spondylolithesis to increase fusion rate, pain relief and functional improvement