[The evaluation of preliminary results of spondylolisthesis treatment in adults by Kluger's transpedicular stabilization].

There were 13 adults with spondylolisthesis treated operatively from 1994 to 1997 in University Orthopaedics Department in Lublin. The surgical procedures consisted of displacement reduction by transpedicular device and stabilization with Kluger's system. Patient's age ranged from 39 to 60 years. The follow-up examination took place 1 to 4 years from surgery. In 10 cases isthmal spondylolisthesis and in additional 3 iatrogenic (because of previous operations) were diagnosed. There was pathology on level L4/L5 in 6 and L5/S1 in other 7 patients. The first grade of displacement had 7 persons and the second one other 6. The vertebral body displacement ranged from 15% to 35%. All patients 3-6 months before admission had had pain intensification because of instability and nerve's roots irritation. Wide laminectomy with osteophytes removal from anterior wall od spinal canal gave chance to decompress neural structures. There were 3 patients who had posterior spondylodesis between transverse processes, 2 who had ALIF two weeks after operation from posterior approach. In 7 cases posterior intervertebral spondylodesis (PLIF) was performed during the same procedure with displacement reduction. Follow-up examination found full reduction and sufficient interbody fusion in all cases. In 1 patient there was transpedicular screw loosening because ALIF as the second step of procedure wasn't done. There was one deep infection and necessity of fixateur removal 9 months postop. The others hadn't symptoms of screw loosening and it suggests sufficient spondylodesis. Ten patients returned to their previous occupation.