Comparison of Surgical Outcomes Between Short-Segment Open and Percutaneous Pedicle Screw Fixation Techniques for Thoracolumbar Fractures

Sep 8, 2016Medical science monitor : international medical journal of experimental and clinical research

Surgical Results Comparing Short-Segment Open and Minimally Invasive Screw Fixation for Mid-Back Fractures

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Abstract

Blood loss was significantly less in the PPSF-4 and PPSF-6 groups compared to the OPSF-4 and OPSF-6 groups (P<0.05).

The OPSF-6 group showed a significantly higher immediate postoperative correction percentage of anterior column height compared to the other three groups (P<0.05).
Significant improvements in the correction of the sagittal regional Cobb angle and kyphotic angle were observed in the OPSF-6 group compared to the PPSF-4 and PPSF-6 groups (P<0.05).
No significant differences were found in the correction loss of anterior column height percentage or the sagittal Cobb and kyphotic angles at the final follow-up among all groups (P>0.05).
OPSF with 6 screws may provide better correction of injured vertebral height and kyphosis.
PPSF may lead to reduced intraoperative blood loss.

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BACKGROUND This study aimed to compare the surgical outcomes between open pedicle screw fixation (OPSF) and percutaneous pedicle screw fixation (PPSF) for the treatment of thoracolumbar fractures, which has received scant research attention to date. MATERIAL AND METHODS Eight-four patients with acute and subacute thoracolumbar fractures who were treated with SSPSF from January 2013 to June 2014 at the Changzhou Hospital of Traditional Chinese Medicine (Changzhou, China) were retrospectively reviewed. The patients were divided into 4 groups: the OPSF with 4 basic screws (OPSF-4) group, the OPSF with 4 basic and 2 additional screws (OPSF-6) group, the PPSF with 4 basic screws (PPSF-4) group, and the PPSF with 4 basic and 2 additional screws (PPSF-6) group. The intraoperative, immediate postoperative, and over 1-year follow-up outcomes were evaluated and compared among these groups. RESULTS Blood loss in the PPSF-4 group and the PPSF-6 group was significantly less than in the OPSF-4 group and the OPSF-6 group (P<0.05). The OPSF-6 group exhibited significantly higher immediate postoperative correction percentage of anterior column height of fractured vertebra than the other 3 groups (P<0.05), and higher correction of sagittal regional Cobb angle and kyphotic angle of injured vertebra than in the PPSF-4 and -6 groups (P<0.05). In addition, there was no significant difference in the correction loss of percentage of anterior column height, and loss of sagittal Cobb angle and kyphotic angle of fractured vertebrae at final follow-up among the 4 groups (P>0.05). CONCLUSIONS OPSF with 6 screws had an advantage in the correction of injured vertebral height and kyphosis, and PPSF reduced the intraoperative blood loss of patients.

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Comparison of Surgical Outcomes Between Short-Segment Open and Percutaneous Pedicle Screw Fixation Techniques for Thoracolumbar Fractures

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