Endoscopic decompression for the treatment of lumbar spinal stenosis: an updated systematic review and meta-analysis

2021 ◽  
pp. 1-9
Author(s):  
Roberto J. Perez-Roman ◽  
Wendy Gaztanaga ◽  
Victor M. Lu ◽  
Michael Y. Wang

OBJECTIVE Lumbar stenosis treatment has evolved with the introduction of minimally invasive surgery (MIS) techniques. Endoscopic methods take the concepts applied to MIS a step further, with multiple studies showing that endoscopic techniques have outcomes that are similar to those of more traditional approaches. The aim of this study was to perform an updated meta-analysis and systematic review of studies comparing the outcomes between endoscopic (uni- and biportal) and microscopic techniques for the treatment of lumbar stenosis. METHODS Following PRISMA guidelines, a systematic search was performed using the Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, Ovid Embase, and PubMed databases from their dates of inception to December 14, 2020. All identified articles were then systematically screened against the following inclusion criteria: 1) studies comparing endoscopic (either uniportal or biportal) with minimally invasive approaches, 2) patient age ≥ 18 years, and 3) diagnosis of lumbar spinal stenosis. Bias was assessed using quality assessment criteria and funnel plots. Meta-analysis using a random-effects model was used to synthesize the metadata. RESULTS From a total of 470 studies, 14 underwent full-text assessment. Of these 14 studies, 13 comparative studies were included for quantitative analysis, totaling 1406 procedures satisfying all criteria for selection. Regarding postoperative back pain, 9 studies showed that endoscopic methods resulted in significantly lower pain scores compared with MIS (mean difference [MD] −1.0, 95% CI −1.6 to −0.4, p < 0.01). The length of stay data were reported by 7 studies, with endoscopic methods associated with a significantly shorter length of stay versus the MIS technique (MD −2.1 days, 95% CI −2.7 to −1.4, p < 0.01). There was no significant difference with respect to leg visual analog scale scores, Oswestry Disability Index scores, blood loss, surgical time, and complications, and there were not any significant quality or bias concerns. CONCLUSIONS Both endoscopic and MIS techniques are safe and effective methods for treating patients with symptomatic lumbar stenosis. Patients who undergo endoscopic surgery seem to report less postoperative low-back pain and significantly reduced hospital stay with a trend toward less perioperative blood loss. Future large prospective randomized trials are needed to confirm the findings in this study.

Neurosurgery ◽  
2017 ◽  
Vol 80 (3) ◽  
pp. 355-367 ◽  
Author(s):  
Karsten Schöller ◽  
Marjan Alimi ◽  
Guang-Ting Cong ◽  
Paul Christos ◽  
Roger Härtl

Abstract BACKGROUND: Decompression without fusion is a treatment option in patients with lumbar spinal stenosis (LSS) associated with stable low-grade degenerative spondylolisthesis (DS). A minimally invasive unilateral laminotomy (MIL) for “over the top” decompression might be a less destabilizing alternative to traditional open laminectomy (OL). OBJECTIVE: To review secondary fusion rates after open vs minimally invasive decompression surgery. METHODS: We performed a literature search in Pubmed/MEDLINE using the keywords “lumbar spondylolisthesis” and “decompression surgery.” All studies that separately reported the outcome of patients with LSS+DS that were treated by OL or MIL (transmuscular or subperiosteal route) were included in our systematic review and meta-analysis. The primary end point was secondary fusion rate. Secondary end points were total reoperation rate, postoperative progression of listhetic slip, and patient satisfaction. RESULTS: We identified 37 studies (19 with OL, 18 with MIL), with a total of 1156 patients, that were published between 1983 and 2015. The studies’ evidence was mostly level 3 or 4. Secondary fusion rates were 12.8% after OL and 3.3% after MIL; the total reoperation rates were 16.3% after OL and 5.8% after MIL. In the OL cohort, 72% of the studies reported a slip progression compared to 0% in the MIL cohort, respectively. After OL, satisfactory outcome was 62.7% compared to 76% after MIL. CONCLUSION: In patients with LSS and DS, minimally invasive decompression is associated with lower reoperation and fusion rates, less slip progression, and greater patient satisfaction than open surgery.


2021 ◽  
pp. 13
Author(s):  
Kalpesh Hathi

Introduction: This study was aimed at comparing outcomes of minimally invasive (MIS) versus OPEN surgery for lumbar spinal stenosis (LSS) in patients with diabetes. Methodology: This retrospective cohort study included patients with diabetes who underwent spinal decompression alone or with fusion for LSS within the Canadian Spine Outcomes and Research Network (CSORN) database. Outcomes of MIS and OPEN approaches were compared for two cohorts: (i) patients with diabetes who underwent decompression alone (N = 116; MIS, n = 58, OPEN, n = 58) and (ii) patients with diabetes who underwent decompression with fusion (N = 108; MIS, n = 54, OPEN, n = 54). Mixed measures analyses of covariance compared modified Oswestry Disability Index (mODI) and back and leg pain at one-year post operation. The number of patients meeting minimum clinically important difference (MCID) or minimum pain/disability at one year were compared. Result: MIS approaches had less blood loss (decompression alone difference 99.66 mL, p = 0.002; with fusion difference 244.23, p < 0.001) and shorter LOS (decompression alone difference 1.15 days, p = 0.008; with fusion difference 1.23 days, p = 0.026). MIS compared to OPEN decompression with fusion had less patients experience an adverse event (difference, 13 patients, p = 0.007). The MIS decompression with fusion group had lower one-year mODI (difference, 14.25, p < 0.001) and back pain (difference, 1.64, p = 0.002) compared to OPEN. More patients in the MIS decompression with fusion group exceeded MCID at one year for mODI (MIS 75.9% vs OPEN 53.7%, p = 0.028) and back pain (MIS 85.2% vs OPEN 70.4%, p = 0.017). Conclusion: MIS approaches were associated with more favorable outcomes for patients with diabetes undergoing decompression with fusion for LSS.


2021 ◽  
Vol 85 ◽  
pp. 19-28 ◽  
Author(s):  
Fei-Long Wei ◽  
Cheng-Pei Zhou ◽  
Rui Liu ◽  
Kai-Long Zhu ◽  
Ming-Rui Du ◽  
...  

Neurosurgery ◽  
2015 ◽  
Vol 77 (6) ◽  
pp. 847-874 ◽  
Author(s):  
Nickalus R. Khan ◽  
Aaron J. Clark ◽  
Siang Liao Lee ◽  
Garrett T. Venable ◽  
Nicholas B. Rossi ◽  
...  

BACKGROUND: Minimally invasive transforaminal lumbar interbody fusion (TLIF)—or MI-TLIF—has been increasing in prevalence compared with open TLIF (O-TLIF) procedures. The use of MI-TLIF is an evolving technique with conflicting reports in the literature about outcomes. OBJECTIVE: To investigate the impact of MI-TLIF in comparison with O-TLIF for early and late outcomes by using the Visual Analog Scale for back pain (VAS-back) and the Oswestry Disability Index (ODI). Secondary end points include blood loss, operative time, radiation exposure, length of stay, fusion rates, and complications between the 2 procedures. METHODS: During August 2014, a systematic literature search was performed identifying 987 articles. Of these, 30 met inclusion criteria. A random-effects meta-analysis was performed by using both pooled and subset analyses based on study type. RESULTS: Our meta-analysis demonstrated that MI-TLIF reduced blood loss (P &lt; .001), length of stay (P &lt; .001), and complications (P = .001) but increased radiation exposure (P &lt; .001). No differences were found in fusion rate (P = .61) and operative time (P = .34). A decrease in late VAS-back scores was demonstrated for MI TLIF (P &lt; .001), but no differences were found in early VAS-back, early ODI, and late ODI. CONCLUSION: MI-TLIF is associated with reduced blood loss, decreased length of stay, decreased complication rates, and increased radiation exposure. The rates of fusion and operative time are similar between MI-TLIF and O-TLIF. Differences in long-term outcomes in MI-TLIF vs O-TLIF are inconclusive and require more research, particularly in the form of large, multi-institutional prospective randomized controlled trials.


2021 ◽  
Vol 108 (Supplement_6) ◽  
Author(s):  
J Varma ◽  
R Donovan ◽  
M Whitehouse ◽  
S Kunutsor ◽  
A Blom

Abstract Tranexamic acid (TXA) is an inexpensive, commonly used antifibrinolytic agent that has been shown to significantly reduce perioperative blood loss and transfusion requirements after total hip and knee replacement. We conducted a systematic review and meta-analysis to synthesise the latest evidence regarding the effects of TXA on blood loss in total shoulder replacement (TSR) and total elbow replacement (TER). We systematically searched MEDLINE, EMBASE and CENTRAL from inception to 03 September 2020 for randomised controlled trial (RCTs) and observational studies. Our primary outcome was blood loss, and secondary outcomes included the need for blood transfusion and venous thromboembolic (VTE) complications. Four RCTs and five retrospective cohort studies (RCS) met eligibility criteria for TSRs, but none for TERs. RCT data determined that TXA administration significantly decreased estimated total blood loss, postoperative blood loss, change in haemoglobin (Hb) and total Hb loss when compared to placebo. RCS data demonstrated significant association between TXA administration and decreased in postoperative blood loss, change in Hb, change in Hct and length of stay. This meta-analysis demonstrates that TXA administration in primary TSR significantly decreases blood loss compared with placebo and is associated with lower blood loss and shorter length of stay compared with no treatment with no increase in VTE complications. TXA administration should be part of a wider blood management strategy to minimise perioperative blood loss and blood transfusion requirements in patients undergoing TSR. Further research is needed to demonstrate if a similar treatment benefit exists in patients undergoing TER.


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