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Malham GM, Hamer RP, Biddau DT, Munday NR. Do evoked potentials matter? Pre-pathologic signal change and clinical outcomes with expandable cages in lateral lumbar interbody fusion surgery. J Clin Neurosci 2022; 98:248-253. [PMID: 35220141 DOI: 10.1016/j.jocn.2022.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 10/19/2022]
Abstract
Minimally Invasive Lateral Lumbar Interbody Fusion (MIS LLIF) is a reliable technique for treatment of degenerative disk disease, foraminal stenosis and spinal deformity. The retroperitoneal transpsoas approach risks lumbar plexus injury that may result in anterior thigh pain, sensory loss and weakness. A prospective study of 64 consecutive patients undergoing MIS LLIF with expandable cages (23 standalone, 41 integrated with lateral plate) using multimodal electrophysiological monitoring was performed. We measured sequential retraction times, complications, patient reported outcome scores and electrophysiologic findings with a minimum 12-month follow-up. Incidence of evoked potential and electromyographic signal change was moderate, and rarely resulted in post-operative neurologic deficit. Evoked potential signal changes were frequently resolved by the un-breaking of the surgical table or repositioning of the retractor. Average retraction times were 24 (15-41) minutes for standalone cages and 30 (15-41) minutes for integrated cages. At follow-up, the vast majority (97%) of patients reported significant clinical improvement post-operatively with only 2 patients reporting postoperative neurologic symptoms and subsequent recovery at 12-months. The present study shows that evoked potentials combined with electromyography is a more sensitive measure of pre-pathologic lumbar plexopathy in LLIF compared to electromyography alone, especially at L3/4 and L4/5 levels. Based on our findings, there is limited clinical indication for routine neural monitoring at rostral lumbar levels. The routine inclusion of multimodal electrophysiological monitoring in lateral transpsoas surgery is recommended to minimise the risk of neural injury by enabling optimal patient and retractor positioning and continued surveillance throughout the procedure.
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Affiliation(s)
- Gregory M Malham
- Neuroscience Institute, Epworth Hospital, Melbourne, VIC, Australia; Swinburne Institute of Technology, Melbourne, VIC, Australia.
| | - Ryan P Hamer
- Faculty of Medicine & Health, University of Sydney, Sydney, NSW, Australia
| | - Dean T Biddau
- Swinburne Institute of Technology, Melbourne, VIC, Australia
| | - Nigel R Munday
- Neuroscience Institute, Epworth Hospital, Melbourne, VIC, Australia
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De Cassai A, Geraldini F, Zarantonello F, Sella N, Negro S, Andreatta G, Salvagno M, Boscolo A, Navalesi P, Munari M. A practical guide to patient position and complication management in neurosurgery: a systematic qualitative review. Br J Neurosurg 2021; 36:583-593. [PMID: 34726549 DOI: 10.1080/02688697.2021.1995593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
PURPOSE Adequate patient positioning is of paramount importance in neurosurgery. Complications related to the position are common and make up for more than 16% of the claims towards anaesthesiologists and neurosurgeons. This paper aims to provide the anaesthesiologist with a practical guide to avoid common pitfalls related to the patient positioning process. METHOD We performed a systematic review of the medical literature for the identification, screening, and inclusion of articles. The bibliographic search was conducted on June 1st, 2021 by two of the authors. In this review, we included articles indexed by MEDLINE, Cochrane Library, or Google Scholar. RESULTS We retrieved a total of 5706 unique papers from our initial search. However, after the initial screening, 5363 papers were removed is not related to our research leaving a total of 343 papers. We examined the full text of all the 343 articles including 68 of them in the final qualitative analysis. DISCUSSION In this review we examine the most common neurosurgical positions: supine, sitting, lateral, park-bench, prone, jack-knife, and knee-chest. For each of them, the proper positioning and related complications are described. Particular attention is given to the prevention and management of these complications, providing a practical guide for clinicians.
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Affiliation(s)
- Alessandro De Cassai
- Anesthesia and Intensive Care Unit, University-Hospital of Padova, Padova, Italy
| | - Federico Geraldini
- Anesthesia and Intensive Care Unit, University-Hospital of Padova, Padova, Italy
| | | | - Nicolò Sella
- UOC Anaesthesia and Intensive Care Unit, Department of Medicine-DIMED, University of Padua, Padua, Italy
| | - Sebastiano Negro
- UOC Anaesthesia and Intensive Care Unit, Department of Medicine-DIMED, University of Padua, Padua, Italy
| | - Giulio Andreatta
- UOC Anaesthesia and Intensive Care Unit, Department of Medicine-DIMED, University of Padua, Padua, Italy
| | - Michele Salvagno
- UOC Anaesthesia and Intensive Care Unit, Department of Medicine-DIMED, University of Padua, Padua, Italy
| | - Annalisa Boscolo
- Anesthesia and Intensive Care Unit, University-Hospital of Padova, Padova, Italy
| | - Paolo Navalesi
- UOC Anaesthesia and Intensive Care Unit, Department of Medicine-DIMED, University of Padua, Padua, Italy
| | - Marina Munari
- Anesthesia and Intensive Care Unit, University-Hospital of Padova, Padova, Italy
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Effect of an Adjustable Hinged Carbon Fiber Operating Table on the Coronal Alignment of the Lumbar Spine During Oblique Lateral Interbody Fusion. World Neurosurg 2021; 149:e958-e962. [PMID: 33582292 DOI: 10.1016/j.wneu.2021.01.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/16/2021] [Accepted: 01/16/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVE We sought to measure the coronal alignment of the lumbar spine of patients in the right lateral decubitus position on a hinged Jackson operating table with the following 3 table positions: neutral and right and left 20-degree flexion. METHODS We analyzed the data of 23 patients who underwent OLIF. Spinal alignment was quantified using the coronal Cobb angle from L1 to S1, measured on anterior-posterior radiographs obtained preoperatively, after induction of anesthesia, with patients in the right lateral decubitus position, for the following 3 positions of the Jackson hinged operating table: neutral, right 20-degree flexion, and left 20-degree flexion. The Cobb angle at each position, the change in the Cobb angle, and the effective range of motion (%) were obtained from neutral to right and left 20-degree flexion. Alignment was compared between the 3 positions, and the range of motion was compared between men and women. RESULTS The Cobb angle was different in all 3 positions of the table (P < 0.0001): -7.0 ± 8.7°, neutral; 2.8 ± 7.6°, right 20-degree flexion; and -14.7 ± 7.8°, left 20-degree flexion. The change in Cobb angle and the effective range of motion were greater in women (10.9 ± 2.8° and 55%) than in men (6.7 ± 5.8° and 34%) from the neutral to right 20-degree flexion position (P = 0.0298). CONCLUSIONS The coronal alignment of the lumbar spine of patients in the right lateral decubitus position on a flat operating table (neutral position) was convex. The right 20-degree flexion position of the hinged operating table yielded less coronal plane lumbar spine deformity, with greater deformity in women.
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Effects of Surgical Positioning on L4-L5 Accessibility and Lumbar Lordosis in Lateral Transpsoas Lumbar Interbody Fusion: A Comparison of Prone and Lateral Decubitus in Asymptomatic Adults. World Neurosurg 2021; 149:e705-e713. [PMID: 33548538 DOI: 10.1016/j.wneu.2021.01.113] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/22/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Lateral interbody fusion (LIF) is traditionally performed in lateral decubitus on a breaking surgical table to improve L4-L5 access. Prone transpsoas (PTP) LIF may improve sagittal alignment and facilitate single-position circumferential procedures; but may require manipulation of the iliac crest for L4-L5 accessibility. METHODS Healthy adult volunteers (n = 41) were positioned as if for surgery in right-lateral decubitus on a radiolucent breaking table, and also prone on a Jackson-style surgical frame atop a custom PTP bolster. Iliac crest distance from the L5 superior endplate, and coronal and sagittal plane alignments were measured from fluororadiographs obtained in each of 5 positions: standard lateral decubitus (LD), prone-hips and spine neutral (PR-NN), prone-hips neutral and spine coronally bent (PR-NCB), prone-hips extended and spine neutral (PR-EN), and prone-hips extended and spine coronally bent (PR-ECB). RESULTS L4-L5 accessibility was lowest in prone-neutral and improved in all augmented positional configurations: PR-NN<>PR-EN<LD<PR-ECB<PR-NCB. Coronal bending with the PTP positioner created greater accessibility than that achieved by lateral decubitus breaking (PR-NCB>LD, P = 0.0480). Coronal angulations were greatest in LD, and statistically different from both prone neutral (LD>PR-NN, P < 0.0001) and prone coronally bent (LD>PR-NCB, P < 0.0001). Lordosis was greatest in extended prone positions and lowest in lateral decubitus: PR-EN>PR-ECB>PR-NCB<>PR-NN>LD. All prone positions showed significantly greater lordosis than lateral decubitus (P < 0.001). CONCLUSIONS Compared with lateral decubitus, prone positioning provides equivalent or better L4-L5 LIF access around the iliac crest when a positioner is used that enables coronal bending, and improved positional lordosis, which may facilitate segmental correction and achievement of surgical alignment goals.
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Sun K, Sun X, Huan L, Xu X, Sun J, Duan L, Wang S, Zhang B, Zheng B, Guo Y, Shi J. A modified procedure of single-level transforaminal lumbar interbody fusion reduces immediate post-operative symptoms: a prospective case-controlled study based on two hundred and four cases. INTERNATIONAL ORTHOPAEDICS 2020; 44:935-945. [PMID: 32086554 DOI: 10.1007/s00264-020-04508-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 02/07/2020] [Indexed: 11/30/2022]
Abstract
STUDY DESIGN This is a prospective case-controlled study. PURPOSE The purpose of this study is to investigate the effect of a modified transforaminal lumbar interbody fusion (TLIF) on the immediate post-operative symptoms in patients with lumbar disc herniation (LDH) accompanied with stenosis. METHODS A total of 204 LDH patients with single-level TLIF were enrolled. According to the sequence of the placement of rods and cage, patients were divided into group R (rod-prior-to-cage) and group C (cage-prior-to-rod). Neurological function was evaluated by the Japanese Orthopedic Association (JOA) score. Radiological assessment includes height of intervertebral space (HIS), foraminal height (FH), foraminal area (FA), and segmental lordosis (SL). Change of original symptoms (pain/numb) and new-onset symptoms (pain/numb) after surgery were also recorded. RESULTS Patients in group R had less change of HIS at L3/4, L4/5, and L5/S1 levels compared with pre-operation (all p > 0.05), whereas group C had larger change (all p < 0.05). No statistical difference was found in FH between the two groups before and after surgery at L3/4, L4/5, and L5/S1, respectively (all p > 0.05). In terms of FA, patients in group R had better improvement after surgery than those in group C at L3/4 and L4/5 (both p < 0.05). Patients in both groups acquired good improvement of neurological function. However, there were fewer patients in group R who experienced post-operative leg pain or numb compared with those in group C (p < 0.05). CONCLUSION The modified open TLIF can significantly reduce the incidence of immediate post-operative symptoms for patients with single-level lumbar disc herniation via installation of rods prior to insertion of cage and the "neural standard" should serve as the goal of decompression for spine surgeons to restore disc/foraminal height and to minimize nerve distraction.
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Affiliation(s)
- Kaiqiang Sun
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China
| | - Xiaofei Sun
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China
| | - Le Huan
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China
| | - Ximing Xu
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China
| | - Jingchuan Sun
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China
| | - Liwei Duan
- Department of Emergency and Critical Care, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China
| | - Shunmin Wang
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China
| | - Bin Zhang
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China
| | - Bing Zheng
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China
| | - Yongfei Guo
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
| | - Jiangang Shi
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, No. 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
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McGowan JE, Kanter AS. Lateral Approaches for the Surgical Treatment of Lumbar Spondylolisthesis. Neurosurg Clin N Am 2019; 30:313-322. [PMID: 31078232 DOI: 10.1016/j.nec.2019.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Spondylolisthesis is a common cause of lower back pain in people of all ages. When nonsurgical management is unsuccessful in treatment for lumbar spondylolisthesis, surgical treatment algorithms can be used. This article focuses on lateral lumbar interbody fusion (LLIF). It represents a minimally invasive approach that affords surgeons an increased ability to restore disc height, indirectly decompress the neural elements, and affect global spinal alignment. As the role for circumferential minimally invasive spine surgery continues to expand, the use of LLIF in the setting of spondylolisthesis-and other pathologies-will continue to represent a robust fusion option.
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Affiliation(s)
- Jason E McGowan
- Department of Neurosurgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B400, Pittsburgh, PA 15213, USA.
| | - Adam S Kanter
- Department of Neurosurgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite B400, Pittsburgh, PA 15213, USA
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Derman PB, Phillips FM. Complication avoidance in minimally invasive spinal surgery. JOURNAL OF SPINE SURGERY 2019; 5:S57-S67. [PMID: 31380493 DOI: 10.21037/jss.2019.04.03] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Minimally invasive techniques in spinal surgery allow surgeons to perform operations with less of the approach-related morbidity inherent to traditional open procedures. Yet these muscle-sparing procedures come with a unique set of risks that stem from the novel approaches, limited exposure, and/or a restricted working corridor that they employ. The literature suggests that these operations can be performed without an increased rate of complication once the associated learning curve has been surmounted, suggesting that knowledge of and experience with the nuances of these procedures are essential for patient safety. The present article describes the complications specific to a variety of minimally invasive spinal surgeries and provides guidance on how to avoid them.
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Affiliation(s)
| | - Frank M Phillips
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
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Evaluation of retraction time as a predictor of postoperative motor dysfunction after minimally invasive transpsoas interbody fusion at L4-L5. J Clin Neurosci 2019; 61:124-129. [DOI: 10.1016/j.jocn.2018.10.108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 10/27/2018] [Indexed: 11/24/2022]
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Quillo-Olvera J, Lin GX, Jo HJ, Kim JS. Complications on minimally invasive oblique lumbar interbody fusion at L2-L5 levels: a review of the literature and surgical strategies. ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:101. [PMID: 29707550 DOI: 10.21037/atm.2018.01.22] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Fusion is the cornerstone in the treatment of an unstable degenerative lumbar spinal disease. Various techniques have been developed. Amongst these techniques exists the oblique lumbar interbody fusion (OLIF), which is the ante-psoas approach. Adequate restoration of disc height with large cages placed in the intervertebral space, indirect decompression, and correction of sagittal and coronal alignment can be achieved with OLIF procedure with the advantage of minimal risk for the psoas muscle and lumbar plexus. Nevertheless, this technique entails complications directly associated with the anatomical location where the fusion takes place. This surgical area is a window between the left lateral border of the aorta, or the left common iliac artery, and the anterior belly of the left psoas muscle. Vascular complications associated with the injury of the main vessels, segmental artery or iliolumbar vein of the lumbar spine have been reported, as well as urologic lesions due to ureter transgression, amongst others. Although these complications have been described in the literature, an article that complements this information with technical advice for its avoidance is yet to be published. This article is a review of the most frequent complications associated with the OLIF procedure in L2-L5 lumbar levels, as well as a description of technical strategies for the prevention of such complications.
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Affiliation(s)
- Javier Quillo-Olvera
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Guang-Xun Lin
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hyun-Jin Jo
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jin-Sung Kim
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Protection of the genitofemoral nerve using endoscopic assistance in minimally invasive lateral lumbar fusion. INTERDISCIPLINARY NEUROSURGERY 2017. [DOI: 10.1016/j.inat.2016.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Abstract
The role for minimally invasive surgery (MIS) continues to expand in the management of spinal pathology. In the setting of trauma, operative techniques that can minimize morbidity without compromising clinical efficacy have significant value. MIS techniques are associated with decreased intraoperative blood loss, operative time, and morbidity, while providing patients with comparable outcomes when compared with conventional open procedures. MIS interventions further enable earlier mobilization, decreased hospital stay, decreased pain, and an earlier return to baseline function when compared with traditional techniques. This article reviews patient selection and select MIS techniques for those who have suffered traumatic spinal injury.
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Affiliation(s)
| | | | - Adam S Kanter
- Neurological Surgery Spine Services, University of Pittsburgh Medical Center, UMPC - Presbyterian, Suite B400, 200 Lothrop Street, Pittsburgh, PA 15213, USA.
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