1.Comparative Outcomes of Percutaneous and Conventional Open Pedicle Screw Fixation for Single-level Thoracolumbar Spine Injury: Randomised Controlled Trial
Choovongkomol K ; Piyapromdee U ; Thepjung S ; Tanaviriyachai T ; Jongkittanakul S ; Sudprasert W
Malaysian Orthopaedic Journal 2024;18(No.1):106-115
Introduction: To compare post-operative outcomes of
percutaneous pedicle screw fixation (PPSF) vs open pedicle
screw fixation (OPSF) in patients with thoracolumbar spine
fractures with no neurological deficits.
Materials and methods: In a randomised controlled trial,
patients received short-segment fixation with intermediate
screws. We assessed post-operative back pain (Visual Analog
Scale or VAS), blood loss, operative/fluoroscopy times,
radiographic parameters, and oswestry disability index
(ODI) scores at 1, 2, 3, 6, 9, and 12 months.
Results: Between January 2018 and October 2019, 31
patients received PPSF and 30 OPSF. Mean intra-operative
blood loss was 66.45 (±44.29) ml for PPSF vs 184.83
(±128.36) ml for OPSF (p<0.001). Fluoroscopy time
averaged 2.36 (±0.76) minutes for PPSF vs 0.58 (±0.51)
minutes for OPSF (p<0.001). No significant differences
existed in operative time or post-operative VAS scores.
Radiographic parameters (kyphosis angle and vertebral
height ratios) didn't significantly differ post-operatively or at
12 months. However, ODI scores differed significantly at 6
months (p=0.025), with no difference at 12 months.
Conclusion: In this trial, PPSF was comparable to OPSF in
improving ODI scores at 12 months but showed earlier
improvement at 6 months and reduced blood loss.
Radiographic outcomes remained similar between groups
over 12 months.


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