2019
DOI: 10.1093/ons/opz240
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Retrospective Review of Immediate Restoration of Lordosis in Single-Level Minimally Invasive Transforaminal Lumbar Interbody Fusion: A Comparison of Static and Expandable Interbody Cages

Abstract: BACKGROUND Sagittal alignment is an important consideration in spine surgery. The literature is conflicted regarding the effect of minimally invasive transforaminal lumbar interbody fusion (MI-TLIF) on sagittal parameters and the role of expandable cage technology. OBJECTIVE To compare lordosis generated by static and expandable cages and to determine what factors affect postoperative sagittal parameters. … Show more

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Cited by 57 publications
(70 citation statements)
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“…7 Dorward et al 31 observed that patients who had TLIF performed in the L3-S1 region actually lost lordosis postoperatively. This is a problem also observed in MIS TLIF, [8][9][10][11] leading some to believe "TLIF is kyphosing." 32 However, open TLIF with bilateral facetectomies, when done appropriately, is a common way of restoring LL and sagittal balance.…”
Section: Discussionmentioning
confidence: 96%
See 3 more Smart Citations
“…7 Dorward et al 31 observed that patients who had TLIF performed in the L3-S1 region actually lost lordosis postoperatively. This is a problem also observed in MIS TLIF, [8][9][10][11] leading some to believe "TLIF is kyphosing." 32 However, open TLIF with bilateral facetectomies, when done appropriately, is a common way of restoring LL and sagittal balance.…”
Section: Discussionmentioning
confidence: 96%
“…Although this study demonstrates the similarities and differences between MIS and open TLIF, it does not directly compare MIS TLIF with unilateral versus bilateral facetectomies. In fact, other factors may influence the change in lordosis after TLIF, including the type of cage used 11 and where the cage is placed. 35 Future studies should focus on directly comparing unilateral versus bilateral MIS TLIF to determine the significance of bilateral facetectomies on clinical and radiographic outcomes.…”
Section: Discussionmentioning
confidence: 99%
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“…Previous studies have cited varying degrees of lordosis correction following TLIFs. These widely range from 2.1 -27.3 degrees, depending on factors such as the use of lordotic cages, the number of levels instrumented, and whether the TLIF was performed in an open versus minimally invasive fashion [8,9,[18][19][20][21][22][23][24][25][26][27][28][29]. Traditionally, radiographic factors, such as bridging osteophytes or the presence of intradiscal vacuum phenomenon, have been used to predict the capacity to restore SL [30].…”
Section: Introductionmentioning
confidence: 99%