scholarly journals Approach-related anatomical differences in patients with lumbo-sacral transitional vertebrae undergoing lumbar fusion surgery at level L4/5

Author(s):  
Luis Becker ◽  
Dominik Adl Amini ◽  
Katharina Ziegeler ◽  
Maximilian Muellner ◽  
Torsten Diekhoff ◽  
...  

Abstract Introduction Lumbo-sacral transitional vertebrae (LSTV) are accompanied by changes in soft tissue anatomy. The aim of our retrospective study was to evaluate the effects of LSTV as well as the number of free lumbar vertebrae on surgical approaches of ALIF, OLIF and LLIF at level L4/5. Material and methods We assessed the CTs of 819 patients. Of these, 53 had LSTV from which 11 had six (6LV) and 9 four free lumbar vertebrae (4LV). We matched them for sex and age to a control group. Results Patients with LSTV had a higher iliac crest and vena cava bifurcation, a greater distance between the common iliac veins and an anterior translation of the psoas muscle at level L4/5. In contrast, patients with 6LV had a lower iliac crest and aortic bifurcation, no differences in vena cava bifurcation and distance between the iliac veins compared to the control group. Conclusions For patients with LSTV and five or four free lumbar vertebrae, the LLIF approach at L4/5 may be hindered due to a high riding iliac crest as well as anterior shift of the psoas muscle. Whereas less mobilization and retraction of the iliac veins may reduce the risk of vascular injury at this segment by ALIF and OLIF. For patients with 6LV, a lower relative height of the iliac crest facilitates lateral approach during LLIF. For ALIF and OLIF, a stronger vessel retraction due to the deeper-seated vascular bifurcation is necessary during ALIF and is therefore potentially at higher risk for vascular injury.

Neurosurgery ◽  
2019 ◽  
Vol 66 (Supplement_1) ◽  
Author(s):  
Yi Lu ◽  
Erica Bertoncini

Abstract INTRODUCTION Spine surgery traditionally relies on opioid analgesics for postoperative pain management. Opioids are associated with prolonged hospital stays and opioid use disorders. Opioid-focused prescribing habits in surgery have partially contributed to the opioid epidemic. METHODS A retrospective analysis was performed comparing patients receiving a multimodal analgesia regimen after lumbar fusion surgery vs control group receiving standard analgesia regimen. The multimodal regimen consisted of Acetaminophen 975 mg TID, Toradol 7.5 mg Q6 hours for 24-ho followed by Celebrex 100 mg BID for 7-d, Robaxin 500 mg Q6 hours prn for muscle spasms, Gabapentin 300 mg/100 mg TID for 4-wk, and prn narcotic. The standard regimen consisted of Acetaminophen 975 mg TID, narcotic prn, and muscle relaxant prn. There were 12 patients in the multimodal group and 26 patients in the control group evaluated over 3-mo and 6-mo time periods respectively. Primary outcomes included hospital length-of-stay, total and IV narcotic requirements in Morphine Milligram Equivalent (MME), and VASS pain scores. RESULTS Study results demonstrate differences between patient populations when focusing on the opioid-naïve participants. Opioid-naïve patients in the multimodal group were found to have significantly lower IV narcotic requirement than the control (0.22+/−0.67 mg/d for multimodal vs 5.36+/−5.56 mg/d for standard group, P-value = .001). These patients also had shorter hospital stays than the control (2.78+/−0.83 d for multimodal vs 3.53+/−1.17 d for standard group) but the difference was just below our threshold for significance (P-value = .066). Including both opioid-naïve and opioid-tolerant patients, no significant differences were found in hospital length-of-stay, MME, IV narcotic requirement nor VASS score between the multimodal group and the control groups (P-values of .46, .81, .36, and .91, respectively). CONCLUSION Overall, the study favors using multimodal analgesia in those undergoing lumbar spinal fusion surgeries as evident by considerably reduced IV narcotic requirement and nearly significant shortened hospital length-of-stay in opioid-naïve patients compared to control.


2014 ◽  
Vol 21 (4) ◽  
pp. 595-600 ◽  
Author(s):  
Stephen M. Pirris ◽  
Eric W. Nottmeier ◽  
Sherri Kimes ◽  
Michael O'Brien ◽  
Gazanfar Rahmathulla

Object Considerable biological research has been performed to aid bone healing in conjunction with lumbar fusion surgery. Iliac crest autograft is often considered the gold standard because it has the vital properties of being osteoconductive, osteoinductive, and osteogenic. However, graft site pain has been widely reported as the most common donor site morbidity. Autograft site pain has led many companies to develop an abundance of bone graft extenders, which have limited proof of efficacy. During the surgical consent process, many patients ask surgeons to avoid harvesting autograft because of the reported pain complications. The authors sought to study postoperative graft site pain by simply asking patients whether they knew which iliac crest was grafted when a single skin incision was made for the fusion operation. Methods Twenty-five patients underwent iliac crest autografting with allograft reconstruction during instrumented lumbar fusion surgery. In all patients the autograft was harvested through the same skin incision but with a separate fascial incision. At various points postoperatively, the patients were asked if they could tell which iliac crest had been harvested, and if so, how much pain did it cause (10-point Numeric Rating Scale). Results Most patients (64%) could not correctly determine which iliac crest had been harvested. Of the 9 patients who correctly identified the side of the autograft, 7 were only able to guess. The 2 patients who confidently identified the side of grafting had no pain at rest and mild pain with activity. One patient who incorrectly guessed the side of autografting did have significant sacroiliac joint degenerative pain bilaterally. Conclusions Results of this study indicate the inability of patients to clearly define their graft site after iliac crest autograft harvest with allograft reconstruction of the bony defect unless they have a separate skin incision. This simple, easily reproducible pilot study can be expanded into a larger, multiinstitutional investigation to provide more definitive answers regarding the ideal, safe, and cost-effective bone graft material to be used in spinal fusions.


2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Doniel Drazin ◽  
Terrence T. Kim ◽  
J. Patrick Johnson

Lumbar fusion surgery involving lateral lumbar interbody graft insertion with posterior instrumentation is traditionally performed in two stages requiring repositioning. We describe a novel technique to complete the circumferential procedure simultaneously without patient repositioning. Twenty patients diagnosed with worsening back pain with/without radiculopathy who failed exhaustive conservative management were retrospectively reviewed. Ten patients with both procedures simultaneously from a single lateral approach and 10 control patients with lateral lumbar interbody fusion followed by repositioning and posterior percutaneous instrumentation were analyzed. Pars fractures, mobile grade 2 spondylolisthesis, and severe one-level degenerative disk disease were matched between the two groups. In the simultaneous group, avoiding repositioning leads to lower mean operative times: 130 minutes (versus control 190 minutes;p=0.009) and lower intraoperative blood loss: 108 mL (versus 93 mL; NS). Nonrepositioned patients were hospitalized for an average of 4.1 days (versus 3.8 days; NS). There was one complication in the control group requiring screw revision. Lateral interbody fusion and percutaneous posterior instrumentation are both readily accomplished in a single lateral decubitus position. In select patients with adequately sized pedicles, performing simultaneous procedures decreases operative time over sequential repositioning. Patient outcomes were excellent in the simultaneous group and comparable to procedures done sequentially.


2016 ◽  
Vol 15 (1) ◽  
pp. 44-47 ◽  
Author(s):  
Jorge Álvaro González Ross ◽  
Alfredo Javier Moheno Gallardo ◽  
Eulalio Elizalde Martínez ◽  
José Manuel Pérez Atanasio ◽  
Ruth Martínez Martínez

ABSTRACT Objective: To identify whether the use of prophylactic intrasite vancomycin as an adjuvant is a protective factor against deep tissue infection of the surgical site. Methods: Retrospective, descriptive, case-control study evaluating 210 patients, of whom 70 received intrasite vancomycin (case group) and 140 were controls. It was made a follow up for at least one year, reviewing the physical and electronic records. Data were tabulated in spreadsheets (Excel) including all variables and the statistical analysis was made with Epi InfoTM 7 to calculate the odds ratio. Results: Seven cases of deep infection occurred in the control group and none was found in the case group (odds ratio [95% confidence interval]: 0.1262 [0.007-2.24], P = 0.1585). Among the predisposing factors, diabetes and surgical time were the most relevant. Conclusions: Intrasite use of vancomycin has a protective effect against deep infection in patients undergoing lumbar fusion surgery without presenting considerable side effects.


2013 ◽  
Vol 35 (v2supplement) ◽  
pp. Video13 ◽  
Author(s):  
Cristian Gragnaniello ◽  
Kevin A. Seex

Lateral interbody cages have proven useful in lumbar fusion surgery. Spanning both lateral cortical rims while sparing the anterior longitudinal ligament, they restore disc height, improve coronal balance and add stability. The standard approach to their insertion is 90 degrees lateral transpsoas which is bloodless compared to other techniques of interbody cage insertion but requires neuro-monitoring and at L4/5 can be difficult because of iliac crest obstruction or an anterior plexus position. The oblique muscle-splitting approach with the patient in a lateral position, remains retroperitoneal, and on the left side enters the disc space through a window between psoas and the common iliac vein. Reports of this approach are few and none previously have described how to use the large lateral-type cages so effective at restoring spinal alignment. In this video we demonstrate our technique of anterior to psoas fusion of the lumbar spine with a retroperitoneal approach and gentle retraction of the psoas muscle.The video can be found here: http://youtu.be/OS2vNcX9JMA.


2021 ◽  
Vol 10 (7) ◽  
pp. 1415
Author(s):  
Hye Jin Kim ◽  
Bora Lee ◽  
Byung Ho Lee ◽  
So Yeon Kim ◽  
Byongnam Jun ◽  
...  

Tranexamic acid (TXA) protects against endothelial glycocalyx injury in vitro. We aimed to evaluate whether TXA could protect against endothelial glycocalyx degradation in patients undergoing posterior lumbar fusion surgery. Patients aged 30–80 years were enrolled. The TXA group was administered a loading dose of 10 mg/kg, followed by a 1 mg/kg/h infusion. Serum syndecan-1 and heparan sulfate concentrations, which are biomarkers of glycocalyx degradation, were measured at preoperative baseline (T0), immediately post-surgery (T1), and 2 h post-surgery (T2). Postoperative complications were assessed, including hypotension, desaturation, and acute kidney injury. Among the 121 patients who completed the study, 60 received TXA. There were no significant differences in the marker concentrations at each time point. However, the postoperative increase in syndecan-1 levels from baseline was significantly attenuated in the TXA group compared with the control group (median (interquartile range); T1 vs. T0: −1.6 (−5.3–2.6) vs. 2.2 (−0.7–4.8), p = 0.001; T2 vs. T0: 0.0 (−3.3–5.5) vs. 3.6 (−0.1–9.3), p = 0.013). Postoperative complications were significantly associated with the magnitude of the change in syndecan-1 levels (for T2 vs. T0: odds ratio: 1.08, 95% confidence interval: 1.02–1.14, p = 0.006). TXA administration was associated with reduced syndecan-1 shedding in patients undergoing posterior lumbar fusion surgery.


2020 ◽  
Author(s):  
Jianjiang Li ◽  
Long Wang ◽  
Tao Bai ◽  
Yanlu Liu ◽  
Yifei Huang

Abstract Purpose: The current study was conducted to assess the efficacy and safety of the intravenous (IV) administration combined with topical administration of tranexamic acid (TXA)in patients (aged over 60) scheduled for 2-level lumbar fusion surgery. Methods: 280 patients scheduled for 2-level lumbar fusion surgery were randomized into four groups, including an IV group, a local group, a combined group, and a control group. Patients in the combined group, in the IV group, in the topical group, and in the control group were administrated with 15 mg/kg of IV-TXA + 2 g TXA in local,15 mg/kg IV-TXA, 2 g TXA in local ,and 100 ml IV, respectively. The results of total blood loss (TBL) , maximum hemoglobin drop, the transfusion rate, and the number of allogeneic blood units were compared. Deep venous thrombosis (DVT) and pulmonary embolism (PE) events were monitored and recorded. Results: The TBL was 635.49 ± 143.60, 892.62 ± 166.85, 901.11 ± 186.25, and 1,225.11 ± 186.25 mL for the combined group, the IV group, the topical group, and the control group, respectively.(p = 0.015, p = 0.001 respectively).The average maximum hemoglobin drop in the four above groups was 2.18 ± 0.24, 2.80 ± 0.37, 2.40 ± 0.64 ,and 3.40 ± 1.32 g/dL, respectively. No PE event was reported during the follow-up. Although asymptomatic DVT events was reported by 1, 2, and 2 patients in the combined group, topical group, and control group, respectively, there is no intergroup difference. Conclusions: The combined use of TXA effectively reduced total blood loss and blood transfusion rate in patients aged over 60 scheduled for 2-level lumbar fusion, without increasing the incidence of DVT and PE formation.


2020 ◽  
Vol 20 (12) ◽  
pp. 1899-1910 ◽  
Author(s):  
Ana García de Frutos ◽  
Pilar González-Tartière ◽  
Ruth Coll Bonet ◽  
Maria Teresa Ubierna Garcés ◽  
Alejandro del Arco Churruca ◽  
...  

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