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Minimally Invasive Transforaminal Lumbar Interbody Fusion at L5-S1 through a Unilateral Approach: Technical Feasibility and Outcomes.

Choi WS, Kim JS, Ryu KS, Hur JW, Seong JH - Biomed Res Int (2016)

Bottom Line: The mean VAS scores for back and leg pain mean ODI scores improved significantly at the final follow-up.PSR was 88%.Conclusions.

View Article: PubMed Central - PubMed

Affiliation: Department of Neurosurgery, Seoul St. Mary's Hospital, Catholic University, Seoul 06591, Republic of Korea.

ABSTRACT
Background. Minimally invasive spinal transforaminal lumbar interbody fusion (MIS-TLIF) at L5-S1 is technically more demanding than it is at other levels because of the anatomical and biomechanical traits. Objective. To determine the clinical and radiological outcomes of MIS-TLIF for treatment of single-level spinal stenosis low-grade isthmic or degenerative spondylolisthesis at L5-S1. Methods. Radiological data and electronic medical records of patients who underwent MIS-TLIF between May 2012 and December 2014 were reviewed. Fusion rate, cage position, disc height (DH), disc angle (DA), disc slope angle, segmental lordotic angle (SLA), lumbar lordotic angle (LLA), and pelvic parameters were assessed. For functional assessment, the visual analogue scale (VAS), Oswestry disability index (ODI), and patient satisfaction rate (PSR) were utilized. Results. A total of 21 levels in 21 patients were studied. DH, DA, SLA, and LLA had increased from their preoperative measures at the final follow-up. Fusion rate was 86.7% (18/21) at 12 months' follow-up. The most common cage position was anteromedial (15/21). The mean VAS scores for back and leg pain mean ODI scores improved significantly at the final follow-up. PSR was 88%. Cage subsidence was observed in 33.3% (7/21). Conclusions. The clinical and radiologic outcomes after MIS-TLIF at L5-S1 in patients with spinal stenosis or spondylolisthesis are generally favorable.

No MeSH data available.


Related in: MedlinePlus

VAS for back and leg pain.
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fig5: VAS for back and leg pain.

Mentions: Patients were ambulated 6~8 hours postoperatively to assess their postoperative day functional outcomes. The mean VAS scores for back and leg pain decreased from 5.9 and 6.2 at baseline to 1.8 and 1.2 at the final follow-up, respectively (Figure 5), and mean ODI scores improved from 38.3% to 16.5% at final follow-up (Figure 6). PSR at final follow-up was 88%, 19.0% (4/21) had additional nerve blocks, and 1 patient underwent reoperation to reposition a malpositioned screw.


Minimally Invasive Transforaminal Lumbar Interbody Fusion at L5-S1 through a Unilateral Approach: Technical Feasibility and Outcomes.

Choi WS, Kim JS, Ryu KS, Hur JW, Seong JH - Biomed Res Int (2016)

VAS for back and leg pain.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4940521&req=5

fig5: VAS for back and leg pain.
Mentions: Patients were ambulated 6~8 hours postoperatively to assess their postoperative day functional outcomes. The mean VAS scores for back and leg pain decreased from 5.9 and 6.2 at baseline to 1.8 and 1.2 at the final follow-up, respectively (Figure 5), and mean ODI scores improved from 38.3% to 16.5% at final follow-up (Figure 6). PSR at final follow-up was 88%, 19.0% (4/21) had additional nerve blocks, and 1 patient underwent reoperation to reposition a malpositioned screw.

Bottom Line: The mean VAS scores for back and leg pain mean ODI scores improved significantly at the final follow-up.PSR was 88%.Conclusions.

View Article: PubMed Central - PubMed

Affiliation: Department of Neurosurgery, Seoul St. Mary's Hospital, Catholic University, Seoul 06591, Republic of Korea.

ABSTRACT
Background. Minimally invasive spinal transforaminal lumbar interbody fusion (MIS-TLIF) at L5-S1 is technically more demanding than it is at other levels because of the anatomical and biomechanical traits. Objective. To determine the clinical and radiological outcomes of MIS-TLIF for treatment of single-level spinal stenosis low-grade isthmic or degenerative spondylolisthesis at L5-S1. Methods. Radiological data and electronic medical records of patients who underwent MIS-TLIF between May 2012 and December 2014 were reviewed. Fusion rate, cage position, disc height (DH), disc angle (DA), disc slope angle, segmental lordotic angle (SLA), lumbar lordotic angle (LLA), and pelvic parameters were assessed. For functional assessment, the visual analogue scale (VAS), Oswestry disability index (ODI), and patient satisfaction rate (PSR) were utilized. Results. A total of 21 levels in 21 patients were studied. DH, DA, SLA, and LLA had increased from their preoperative measures at the final follow-up. Fusion rate was 86.7% (18/21) at 12 months' follow-up. The most common cage position was anteromedial (15/21). The mean VAS scores for back and leg pain mean ODI scores improved significantly at the final follow-up. PSR was 88%. Cage subsidence was observed in 33.3% (7/21). Conclusions. The clinical and radiologic outcomes after MIS-TLIF at L5-S1 in patients with spinal stenosis or spondylolisthesis are generally favorable.

No MeSH data available.


Related in: MedlinePlus