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. 2012 Aug;3(3):43–49. doi: 10.1055/s-0032-1327809

Table 1. Characteristics of included studies.

Study (y) Study design Population Diagnosis Treatment Follow-up
Wang et al5 (2010) Retrospective cohort study N = 38
Minimally invasive surgery (MIS; Sextant percutaneous pedicle screw fixation)
n = 17
Mean age: 41.6 (range, 28–54) y
Male: 76.5%
Open surgery (open pedicle screw fixation)
n = 21
Mean age: 45.0 (range, 37–61) y
Male: 85.7%		 MIS (Sextant percutaneous pedicle screw fixation)
Mechanism of injury

  • Falling: 41.2% (7/17 patients)

  • Traffic injuries: 41.2% (7/17 patients)

  • Tumble: 17.6% (3/17 patients)

AO fracture classification

  • A1: 35.3% (6/17 patients)

  • A2: 23.5% (4/17 patients)

  • A3: 41.2% (7/17 patients)

ASIA score

  • Incomplete injury (grade D): 29.4% (5/17 patients)

  • Neurologically intact (grade E): 70.6% (12/17 patients)

Open surgery (open pedicle screw fixation)
Mechanism of injury

  • Falling: 71.4% (15/21 patients)

  • Traffic injuries: 9.5% (2/21 patients)

  • Tumble: 14.3% (3/21 patients)

  • Strike by dropping heavy object: 4.8% (1/21 patient)

AO fracture classification

  • A1: 52.4% (11/21 patients)

  • A2: 42.9% (9/21 patients)

  • A3: 4.8% (1/21 patients)

ASIA score

  • Incomplete injury (grade D): 57.1% (12/21 patients)

  • Neurologically intact (grade E): 42.9% (9/21 patients)

 MIS (Sextant percutaneous pedicle screw fixation)
Injury segments

  • T12: 17.6% (3/17 patients)

  • L1: 58.8% (10/17 patients)

  • L2: 23.5% (4/17 patients)

Open surgery (open pedicle screw fixation)
Injury segments

  • T12: 33.3%(7/21 patients)

  • L1: 28.6%(6/21 patients)

  • L2: 38.1%(8/21 patients)

 Mean f/u: 11.6 (range, 8–24) mo
100% f/u
Wild et al4 (2006) Retrospective cohort study N = 23
MIS (percutaneous pedicle fixation)
n = 10
Mean age: 49.1 y*
Male: 90%*
Open surgery (conventionally open posterior surgery with pedicle fixation)
n = 11
Mean age: 33.5 y*
Male: 63.6%* 		AO fracture classification:

  • 100% (21/21) type A fracture

 Both groups used Synthes universal spine system's fixateur interne Mean f/u: 25.5 and 67.9 mo for both groups
91.3% f/u
*

After loss to follow-up (f/u).