Supplementary Table 2. Excluded studies based on the PRISMA literature search process,
and reason for exclusion
Author
Wang et al,
2012[1]
Wang et al,
2010 [2]
Parker et al,
2011 [3]
McGirt et al,
2011 [4]
Reason for exclusion
Reported acute costs after minimally invasive approach for multiple
types of fusion surgery, including transforaminal and posterior lumbar
interbody fusion. Therefore, does not satisfy inclusion criteria of this
review.
Reported acute hospitalization charges for minimally invasive vesus
open posterior lumbar interbody fusion, which may include but is not
exclusive to transforaminal lumbar body fusion. Furthermore, charge is
defined different to cost, since charge reflects not only wholesale cost
associated with any goods or services, but also an additional markup
which varies among hospitals.
Differences in costs were reported in the form of cost difference per
number of surgical site infection, instead of sum of raw direct hospital
costs.
Differences in costs were reported in the form of cost difference per
number of surgical site infection, instead of sum of raw direct hospital
costs.
1. Wang MY, Lerner J, Lesko J, McGirt MJ (2012) Acute hospital costs after minimally
invasive versus open lumbar interbody fusion: data from a US national database with 6106
patients. Journal of spinal disorders & techniques 25:324-328. doi:
10.1097/BSD.0b013e318220be32
2. Wang MY, Cummock MD, Yu Y, Trivedi RA (2010) An analysis of the differences in the
acute hospitalization charges following minimally invasive versus open posterior lumbar
interbody fusion. Journal of neurosurgery Spine 12:694-699. doi:
10.3171/2009.12.SPINE09621
3. Parker SL, Adogwa O, Witham TF, Aaronson OS, Cheng J, McGirt MJ (2011) Postoperative infection after minimally invasive versus open transforaminal lumbar interbody
fusion (TLIF): literature review and cost analysis. Minimally invasive neurosurgery : MIN
54:33-37. doi: 10.1055/s-0030-1269904
4. McGirt MJ, Parker SL, Lerner J, Engelhart L, Knight T, Wang MY (2011) Comparative
analysis of perioperative surgical site infection after minimally invasive versus open
posterior/transforaminal lumbar interbody fusion: analysis of hospital billing and discharge
data from 5170 patients. Journal of neurosurgery Spine 14:771-778. doi:
10.3171/2011.1.SPINE10571