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Comparison of Clinical Outcomes after the Three Different Techniques of

Transpedicular Screw Fixation (TPSF) in Lumbar Spondylisthesis (LS):

Results of a Therapeutic Cohort Study

Ueaungkun Sitthimongkon MD, Prasert Iampreechakul MD, Teera Tangviriyapaiboon MD,

Kullapat Veerasan MD, Porn Narischat MD, Sawing Punjaisee MD, Wuttipong Tirakotai MD

Prasat Neurological Institute, Department of Neurosurgery Services,

Ministry of Public Health, Bangkok, Thailand.

Background: Clinical outcomes in the treatment of LS have been continually

studied in different procedures of convention, navigation-assisted and mini-

open technique. However, which technique providing the better outcomes is in

dispute.

Objective: To compare the peri- and postoperative outcomes of different

surgical treatments of patients diagnosed with LS nonresponsive to

conservative method.

Methods: A prospective cohort study of 60 patients was conducted according

to LS undergoing conventional TPSF or navigation-assisted TPSF or mini-open

TPSF with a 12-month follow up period. This study obtained the data from

Prasat Neurological Institute in 2010. Comparatively, pre-op and postoperative

neurological status, pain and functional outcomes were estimated using

Macnab. Further outcomes were additinally evaluated in duration of

procedure, estimated blood loss (EBL) and time of hospital stay. Statistical

analysis with a P- value was carried out.

2015 Annual Academic Research Study Presentations