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Seruya M. Differential Diagnosis of "Foot Drop": Implications for Peripheral Nerve Surgery. J Reconstr Microsurg 2024. [PMID: 38267007 DOI: 10.1055/a-2253-6360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
BACKGROUND At least 128,000 patients in the United States each year suffer from foot drop. This is a debilitating condition, marked by the inability to dorsiflex and/or evert the affected ankle. Such patients are rendered to a lifetime of relying on an ankle-foot orthosis (AFO) for walking and nighttime to prevent an equinovarus contracture. METHODS This narrative review explores the differential diagnosis of foot drop, with a particular focus on clinical presentation and recovery, whether spontaneously or through surgery. RESULTS Contrary to popular belief, foot drop can be caused by more than just insult to the common peroneal nerve at the fibular head (fibular tunnel). It is a common endpoint for a diverse spectrum of nerve injuries, which may explain its relatively high prevalence. From proximal to distal, these conditions include lumbar spine nerve root damage, sciatic nerve palsy at the sciatic notch, and common peroneal nerve injury at the fibular head. Each nerve condition is marked by a unique clinical presentation, frequency, likelihood for spontaneous recovery, and cadre of peripheral nerve techniques. CONCLUSION The ideal surgical technique for treating foot drop, other than neurolysis for compression, remains elusive as traditional peripheral nerve procedures have been marred by a wide spectrum of functional results. Based on a careful understanding of why past techniques have achieved limited success, we can formulate a working set of principles to help guide surgical innovation moving forward, such as fascicular nerve transfer.
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Affiliation(s)
- Mitchel Seruya
- Division of Plastic and Reconstructive Surgery, Cedars-Sinai Medical Center, Los Angeles, California
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Bakhsheshian J, Hassan FM, Greisberg G, Platt A, Zuckerman SL, Lenke LG. The "Sandwich" Extended Pedicle Subtraction Osteotomy for the Treatment of Fixed Sagittal Malalignment: Technical Description, Case Series, and Early Results With 2-Year Outcomes. Oper Neurosurg (Hagerstown) 2023:01787389-990000000-00987. [PMID: 38047642 DOI: 10.1227/ons.0000000000001016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 10/17/2023] [Indexed: 12/05/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Adult spinal deformity (ASD) with fixed sagittal malalignment (FSM) may require a pedicle subtraction osteotomy (PSO) for greater focal lordosis and restoration of global alignment. Despite growing trends in minimizing PSOs given their associated high risks, a considerable portion of patients with ASD still require a lumbar PSO most commonly because of iatrogenic flat back deformity. The purpose of this article is to describe a modified extended PSO technique with additional anterior column support coined the "sandwich" extended PSO (SE-PSO) to promote arthrodesis and report the outcomes in a consecutive case series. METHODS Patients with ASD treated with a lumbar SE-PSO at a single institution from 2015 to 2020 were analyzed. Complications, radiographic data, and patient-reported outcomes were compared preoperatively, at immediate postoperative follow-up, and at a 2-year postoperative follow-up (FU). RESULTS Fourteen patients who underwent revision operations for FSM were included. Improvements in segmental lordosis across the PSO site (14.8 ± 6.8 vs 39.9 ± 7.1, P < .0001), overall lumbar lordosis (14.6 ± 15.4 vs 44.6 ± 12.1, P < .0001), sacral slope (21.0 ± 10.5 31.1 ± 10.7, P = .0150), C7 sagittal vertical axis (140.1 ± 59.0 mm vs 35.9 ± 28.5, P < .0001), and spinopelvic mismatch (52.5 ± 21.3 vs 18.6 ± 14.1, P = .0001) were obtained in all patients. Eight patients experienced perioperative complications, with intraoperative durotomy being the most common (n = 7). Eight patients had a 2-year FU and demonstrated improvements in their segmental lordosis across the PSO site (14.3 ± 7.0 vs 41.3 ± 7.3, P = .0003), overall lumbar lordosis (8.7 ± 17.8 vs 46.1 ± 14.2, P = .0014), sacral slope (19.1 ± 12.8 vs 32.3 ± 12.5, P = .0479), C7 sagittal vertical axis (173.6 ± 54.4 mm vs 35.8 ± 30.0, P < .0001), and spinopelvic mismatch (63.0 ± 19.7 vs 21.1 ± 18.3, P < .0001), all of which were maintained at final FU (P > .05). At 2 years, a significant increase in Scoliosis Research Society-22r total score (2.5 ± 0.8 vs 3.6 ± 0.7, P = .0023 was reported. There were no reports of symptomatic pseudarthrosis or mechanical complications. CONCLUSION SE-PSO is an effective technique to correct FSM and is associated with low complications, improved patient-reported outcomes, and spinopelvic parameters that are maintained at 2 years.
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Affiliation(s)
- Joshua Bakhsheshian
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, New York, USA
- Department of Orthopaedic Surgery, The Och Spine Hospital at New York-Presbyterian, New York, New York, USA
- Department of Neurological Surgery, Mayo Clinic, Phoenix, Arizona, USA
| | - Fthimnir M Hassan
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, New York, USA
| | - Gabriella Greisberg
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, New York, USA
| | - Andrew Platt
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, New York, USA
- Department of Orthopaedic Surgery, The Och Spine Hospital at New York-Presbyterian, New York, New York, USA
| | - Scott L Zuckerman
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Lawrence G Lenke
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, New York, USA
- Department of Orthopaedic Surgery, The Och Spine Hospital at New York-Presbyterian, New York, New York, USA
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Jesse CM, Mayer L, Häni L, Goldberg J, Raabe A, Schwarzenbach O, Schär RT. Anterior Lumbar Interbody Fusion in Elderly Patients: Peri- and Postoperative Complications and Clinical Outcome. J Neurol Surg A Cent Eur Neurosurg 2023; 84:548-557. [PMID: 37192649 DOI: 10.1055/s-0042-1757164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
BACKGROUND Anterior lumbar interbody fusion (ALIF) is an effective surgical technique for treating various lumbar pathologies, but its use in elderly patients is controversial. Data concerning complications and effectiveness are sparse. We investigated peri- and postoperative complications, radiographic parameters, and clinical outcome in elderly patients. METHODS Patients ≥65 years who underwent ALIF between January 2008 and August 2020 were included in the study. All surgeries were performed through a retroperitoneal approach. Clinical and surgical data as well as radiologic parameters were collected prospectively and analyzed retrospectively. RESULTS A total of 39 patients were included; the mean age was 72.6 (±6.3) years (range: 65-90 years); and the mean American Society of Anesthesiologists (ASA) risk classification was 2.3 (±0.6). A laceration of the left common iliac vein was the only major complication recorded (2.6%). Minor complications occurred in 20.5% of patients. Fusion rate was 90.9%. Reoperation rate at the index level was 12.8 and 7.7% in adjacent segments. The multidimensional Core Outcome Measures Index (COMI) improved from 7.4 (±1.4) to 3.9 (±2.7) after 1 year and to 3.3 (±2.6) after 2 years. Oswestry disability index (ODI) improved from 41.2 (±13.7) to 20.9 (±14.9) after 1 year and to 21.5 (±18.8) after 2 years. Improvements of at least the minimal clinically important change score of 2.2 and 12.9 points in the ODI and COMI after 2 years were noted in 75 and 56.3% of the patients, respectively. CONCLUSION With careful patient selection, ALIF is safe and effective in elderly patients.
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Affiliation(s)
- Christopher M Jesse
- Department of Neurosurgery, Inselspital, University of Bern, Bern University Hospital, Bern, Switzerland
| | - Lea Mayer
- Department of Neurosurgery, Inselspital, University of Bern, Bern University Hospital, Bern, Switzerland
| | - Levin Häni
- Department of Neurosurgery, Inselspital, University of Bern, Bern University Hospital, Bern, Switzerland
| | - Johannes Goldberg
- Department of Neurosurgery, Inselspital, University of Bern, Bern University Hospital, Bern, Switzerland
| | - Andreas Raabe
- Department of Neurosurgery, Inselspital, University of Bern, Bern University Hospital, Bern, Switzerland
| | | | - Ralph T Schär
- Department of Neurosurgery, Inselspital, University of Bern, Bern University Hospital, Bern, Switzerland
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Araghi K, Fourman MS, Merrill RK, Maayan O, Zhao E, Pajak A, Subramanian T, Kim DN, Kamil R, Shahi P, Sheha ED, Dowdell JE, Iyer S, Qureshi SA. Postoperative Radiculitis After L5-S1 Anterior Lumbar Interbody Fusion. Spine (Phila Pa 1976) 2023; 48:1317-1325. [PMID: 37259185 DOI: 10.1097/brs.0000000000004740] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
STUDY DESIGN Retrospective chart review. OBJECTIVE This study aimed to examine postoperative radiculitis after isolated L5-S1 anterior lumbar interbody fusion (ALIF), determine which factors contribute to its development, and investigate the comparative outcomes of patients with versus without postoperative radiculitis. SUMMARY OF BACKGROUND DATA Both standalone and traditionalALIF are common and safe lumbar spine fusion techniques. Although optimal safety and effectiveness are achieved through appropriate patient selection, postoperative radiculitis after L5-S1 ALIF is a potential complication that seems to be the least predictable in the absence of iatrogenic injury. PATIENTS AND METHODS All adult patients (18-80 yr) with preoperative radiculopathies who underwent L5-S1 ALIF by 9 board-certified spine surgeons at a single academic institution from January 2016 to December 2021 with a minimum of 3 months follow-up were included. Patient records were assessed for data on clinical characteristics and patient-reported outcome scores (patient-reported outcome measures). All patient records were evaluated to determine whether postoperative radiculitis developed. Radiographic measurements using x-rays were completed using all available pre and postoperative imaging. Multivariable logistic regressions were performed utilizing radiculitis as the dependent variable and various independent predictor variables. RESULTS One hundred forty patients were included, 48 (34%) patients developed postoperative radiculitis, with symptom onset and resolution occurring at 14.5 and 83 days, respectively. The two groups had no differences in preoperative or postoperative radiographic parameters. Multivariable regression showed 3 independent predictors of postoperative radiculitis: methylprednisolone use [OR: 6.032; (95% CI: 1.670-25.568)], increased implant height [OR: 1.509; (95% CI: 1.189-1.960)], and no posterior fixation [OR: 2.973; (95% CI: 1.353-0.806)]. CONCLUSIONS Of the 34% of patients who developed postoperative radiculitis after L5-S1 ALIF, it resolved on average within 3 months of surgery. These findings may help reduce the risk of undue short-term morbidity after isolated L5-S1 ALIF by informing preoperative counseling and intraoperative decision-making.
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Affiliation(s)
- Kasra Araghi
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Mitchell S Fourman
- Department of Orthopaedic Surgery, Orthopaedic Spine Service, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY
| | - Robert K Merrill
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Omri Maayan
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Eric Zhao
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Anthony Pajak
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Tejas Subramanian
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - David N Kim
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Robert Kamil
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Pratyush Shahi
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Evan D Sheha
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - James E Dowdell
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Sravisht Iyer
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
| | - Sheeraz A Qureshi
- Department of Spine Surgery, Hospital for Special Surgery, New York, NY
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Mitchell BP, Bianco JM, Kim FMG, Whitaker MC. New diagnosis of conversion disorder following anterior lumbar interbody fusion: a case report. J Surg Case Rep 2023; 2023:rjad341. [PMID: 37337536 PMCID: PMC10276951 DOI: 10.1093/jscr/rjad341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 05/19/2023] [Indexed: 06/21/2023] Open
Abstract
Neurologic deficit after lumbar spine surgery is a rare and serious complication that must be promptly diagnosed and treated to avoid long-term neurologic disability. Anterior lumbar interbody fusion (ALIF) is an effective technique for the treatment of recurrent disc herniation and lumbar disc degeneration. This case report describes a 20-year-old female with L5-S1 recurrent disc herniation and lumbar degeneration. She underwent an L5-S1 ALIF complicated by post-operative lower left extremity paralysis. Revision surgery with downsizing of the ALIF cage was performed with normal neuromonitoring throughout the procedure. The patient displayed persistent post-operative neurologic deficits despite no evidence of central or foraminal compression. Patient was later diagnosed with conversion disorder by neurology during her hospitalization. This case report presents the initial diagnosis of conversion disorder after a routine ALIF procedure, which led to surgical re-exploration and prolonged inpatient hospital stay. Psychiatric diagnoses must be considered when neurologic deficits are present with no apparent organic cause.
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Affiliation(s)
- Brendan P Mitchell
- Correspondence address. Department of Orthopaedic Surgery, University of Kansas School of Medicine - Wichita, 929 N. Saint Francis, Wichita, KS 67214, USA. Tel: +1-316-268-5988; Fax: +1-316-291-7799; E-mail:
| | - Jake M Bianco
- Department of Orthopaedic Surgery, University of Kansas School of Medicine - Wichita, Wichita, KS, USA
| | - Faith M G Kim
- University of Kansas School of Medicine - Wichita, Wichita, KS, USA
| | - M Camden Whitaker
- Department of Orthopaedic Surgery, University of Kansas School of Medicine - Wichita, Wichita, KS, USA
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Salmons HI, Pinter ZW, Streufert B, Sebastian AS, Nassr A. Performing 2-Stage Circumferential Fusion in an Adolescent With High-Grade Spondylolisthesis: A Surgical Technique. Clin Spine Surg 2023; 36:163-168. [PMID: 36150712 DOI: 10.1097/bsd.0000000000001390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 08/17/2022] [Indexed: 11/27/2022]
Abstract
The surgical approach to high-grade spondylolisthesis at the lumbosacral junction remains controversial. Appropriate surgical techniques can be challenging with the potential for high complication rates, particularly with reduction. Multiple techniques have been described including posterior only reduction and instrumentation, posterior only instrumentation with in situ arthrodesis, and anterior-posterior reduction and instrumentation. Regardless of technique, the operative goals are to provide sufficient stability and biological support to promote bony fusion, maintain global balance, and decompress the neural elements while avoiding neurological complications. During instrumentation of a high-grade spondylolisthesis at the lumbosacral junction, it can be difficult to obtain access to the L5-S1 disc space for interbody insertion. We present a novel technique for improving access to the L5-S1 disc space through an osteotomy of the anterior-inferior aspect of the L5 vertebral body as part of a 2-stage circumferential fusion in the treatment of high-grade spondylolisthesis in an adolescent.
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Bassani R, Morselli C, Cirullo A, Pezzi A, Peretti GM. A novel less invasive endoscopic-assisted procedure for complete reduction of low-and high-grade isthmic spondylolisthesis performed by anterior and posterior combined approach. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2023:10.1007/s00586-023-07666-9. [PMID: 37000218 DOI: 10.1007/s00586-023-07666-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 04/01/2023]
Abstract
PURPOSE The optimal surgical management of low- and high-grade isthmic spondylolisthesis (LGS and HGS -IS) is debated as well as whether reduction is needed especially for high-grade spondylolisthesis. Both anterior and posterior techniques can be associated with mechanical disadvantages as hardware failure with loss of reduction and L5 injury. We purpose a novel endoscopic-assisted technique (Sled technique, ST) to achieve a complete reduction in two surgical steps: first anteriorly through a retroperitoneal approach to obtain the greatest part of correction and then posteriorly to complete reduction in the same operation. METHODS ST efficacy and complications rate were evaluated through a retrospective functional and radiological analysis. RESULTS Thirty-one patients, 12 male (38.7%) and 19 female (61.3%), average age: 45.4 years with single level IS underwent olisthesis reduction by ST. Twenty-three IS involved L5 (74.2%), 7 L4 (22.5%) and 1 L3 (3.3%). No intraoperative complications were recorded. One patient required repositioning of a pedicle screw. A significant improvement of functional and radiological parameters (L4-S1 and L5-S1 lordosis) outcomes was recorded (p < 0.001). CONCLUSION ST provides a complete reduction in the slippage in LGS and HGS. The huge anterior release as well as the partial reduction in the slippage by the endoscopic-assisted anterior procedure, because of the cage is acting as a "guide rail", facilitate the final posterior reduction, always complete in our series, minimizing mechanical stresses and neurological risks. CLINICALTRIALS gov Identifier: NCT03644407.
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Affiliation(s)
- Roberto Bassani
- Spine Surgery II, IRCCS Ospedale Galeazzi Sant'Ambrogio, Via Cristina Belgioioso, 173, 20157, Milan, Italy
| | - Carlotta Morselli
- Spine Surgery II, IRCCS Ospedale Galeazzi Sant'Ambrogio, Via Cristina Belgioioso, 173, 20157, Milan, Italy.
| | - Agostino Cirullo
- Spine Surgery II, IRCCS Ospedale Galeazzi Sant'Ambrogio, Via Cristina Belgioioso, 173, 20157, Milan, Italy
| | - Andrea Pezzi
- Residency Program in Orthopedics and Traumatology, University of Milan, Milan, Italy
| | - Giuseppe Maria Peretti
- Spine Surgery II, IRCCS Ospedale Galeazzi Sant'Ambrogio, Via Cristina Belgioioso, 173, 20157, Milan, Italy
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
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Post-operative L5 radiculopathy after L5-S1 hyperlordotic anterior lumbar interbody fusion (HL-ALIF) is related to a greater increase of lordosis and smaller post-operative posterior disc height: results from a cohort study. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2022; 31:1640-1648. [PMID: 35597893 DOI: 10.1007/s00586-022-07256-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/10/2022] [Accepted: 04/30/2022] [Indexed: 10/18/2022]
Abstract
STUDY DESIGN A single-centre retrospective study. BACKGROUND AND PURPOSE This study aims to investigate the rate of L5 radiculopathy, to identify imaging features associated with the complication and to evaluate the clinical outcomes in adult spine deformity patients undergoing L5-S1 ALIF with hyperlordotic cages. METHODS Design: retrospective cohort study. A single-centre prospective database was queried to analyse patients undergoing hyperlordotic (HL) ALIF with posterior fusion to correct spinal deformity. Clinical status was evaluated by back and leg pain numeric rate scale and Oswestry Disability Index pre-operatively and at 3-, 6- and 12-month follow-up. Spinopelvic parameters, such as pelvic incidence, pelvic tilt, lumbar lordosis and L5-S1 lordosis, posterior disc height (PDH) and anterior disc height, were assessed pre-operatively and post-operatively on standardized full-spine standing EOS images. The sagittal foraminal area was measured pre- and post-operatively on a CT scan. RESULTS Thirty-nine patients with a mean age of 63.2 ± 8.6 years underwent HL-ALIF from January 2016 to December 2019. Seven of them developed post-operative root pain (5) or weakness (2) (Group A), while thirty-two did not (Group B). Root impairment was associated with greater segmental correction magnitude, 26° ± 11.1 in Group A versus 15.1° ± 9.9 in Group B (p < 0.05), and to smaller post-operative PDH, 5.9 mm ± 2.7 in Group A versus 8.3 mm ± 2.6 (p < 0.05). CONCLUSIONS Post-operative root problems were observed in 17.9% of patients undergoing HL-ALIF for adult spine deformity. L5 radiculopathy was associated with larger sagittal angular corrections and smaller post-operative posterior disc height. One patient (2.6%) needed L5 root decompression. At 12 months of follow-up, results were equivalent between groups. LEVEL OF EVIDENCE I Diagnostic: individual cross-sectional studies with the consistently applied reference standard and blinding.
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Kim BS, Han MS, Lee TK, Kim JY, Lee JK, Moon BJ. What clinicians should consider when performing oblique lumbar interbody fusion in a patient with long vertebral body osteophytes. World Neurosurg 2022; 163:e450-e457. [PMID: 35405315 DOI: 10.1016/j.wneu.2022.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/01/2022] [Accepted: 04/01/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Oblique lumbar interbody fusion (OLIF) is known as a minimally invasive technique for disc space augmentation. Motor weakness after OLIF has been known to occur in some cases. This study aimed to report the incidence and potential risk factors for motor weakness following OLIF. MATERIALS AND METHODS We enrolled 36 patients and 57 segments who underwent OLIF. Computed tomography was performed before and after OLIF. Clinical data, including age, sex, presenting symptoms, bone mineral density, visual analog scale score, operating segments, and postoperative complications, were collected. We divided the patients into groups with and without neurologic deficit. The disc height was measured and compared between the two groups. We also divided the segments into groups with and without neurologic deficit. Foramen height and osteophyte length were measured and compared between the two groups. RESULTS The neurologic deficit group included three patients (8%), whereas non-neurologic deficit group included 33 patients (92%). The neurologic deficit group included five segments (4%), whereas the non-neurologic deficit group included 109 segments (96%). The disc and foramen heights did not differ significantly between the groups with and without neurologic deficit; however, the osteophyte lengths were longer in the neurologic deficit group. CONCLUSION In our study, vertebral osteophyte length was found to be a potential risk factor for motor weakness after OLIF. For patients with long osteophytes, additional laminectomy following OLIF or another surgical approach for direct decompression should be considered.
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Affiliation(s)
- Bo-Seob Kim
- Department of Neurosurgery, Chonnam National University Medical School & Research Institute of Medical Sciences, Gwangju, Korea
| | - Moon-Soo Han
- Department of Neurosurgery, Chonnam National University Medical School & Research Institute of Medical Sciences, Gwangju, Korea
| | - Tae-Kyu Lee
- Department of Neurosurgery, Chonnam National University Medical School & Research Institute of Medical Sciences, Gwangju, Korea
| | - Jae-Young Kim
- Department of Neurosurgery, Chonnam National University Medical School & Research Institute of Medical Sciences, Gwangju, Korea
| | - Jung-Kil Lee
- Department of Neurosurgery, Chonnam National University Medical School & Research Institute of Medical Sciences, Gwangju, Korea
| | - Bong Ju Moon
- Department of Neurosurgery, Chonnam National University Medical School & Research Institute of Medical Sciences, Gwangju, Korea.
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Farooq J, Pressman E, Elsawaf Y, McBride P, Alikhani P. Prevention of Neurological Deficit With Intraoperative Neuromonitoring During Anterior Lumbar Interbody Fusion. Clin Spine Surg 2022; 35:E351-E355. [PMID: 34629387 DOI: 10.1097/bsd.0000000000001249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 09/15/2021] [Indexed: 11/26/2022]
Abstract
STUDY DESIGN This was a retrospective cohort study. OBJECTIVE While intraoperative neuromonitoring (IONM) has been increasingly used in spine surgery to have a real-time evaluation of the neurological injury, we aim here to assess its utility during anterior lumbar interbody fusion (ALIF) and its association with postoperative neurological deficit. SUMMARY OF BACKGROUND DATA ALIF is a beneficial surgical approach for patients with degenerative disease of the lower lumbar spine who would benefit from increased lordosis and restoration of neuroforaminal height. One risk of ALIF is iatrogenic nerve root injury. IONM may be useful in preventing this injury. MATERIALS AND METHODS We performed a retrospective cohort study of 111 consecutive patients who underwent ALIF at a tertiary care academic center by 6 spine surgeons. We aimed to describe the association between IONM, postoperative weakness, and factors that predispose our center to using IONM. RESULTS The 111 patients had a median age of 62 years [interquartile range (IQR): 53-69 y]. Neuromonitoring was used in 67 patients (60.3%) and not used in 44 patients. Seven neuromonitoring patients had IONM changes during the surgery. Three of these patients' surgeries featured intraoperative adjustments to reduce iatrogenic neural injury. The IONM cohort underwent significantly more complex procedures [5 levels (IQR: 3-7) vs. 2 levels (IQR: 2-5), P=0.001]. There was no difference in rates of new or worsened postoperative weakness (IONM: 20.6%, non-IONM: 20.5%). CONCLUSIONS We demonstrate evidence of the potential benefits of IONM for patients undergoing ALIF. Intraoperative changes in neuromonitoring signals resulted in surgical adjustments that likely prevented neurological deficits postoperatively. IONM was protective so that more complex surgeries did not have a higher rate of postoperative weakness.
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Affiliation(s)
- Jeffrey Farooq
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL
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Mortazavi A, Mualem W, Dowlati E, Alexander H, Rotter J, Withington C, Margolis M, Voyadzis JM. Anterior lumbar interbody fusion: single institutional review of complications and associated variables. Spine J 2022; 22:454-462. [PMID: 34600108 DOI: 10.1016/j.spinee.2021.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/10/2021] [Accepted: 09/21/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT As more patients undergo anterior lumbar interbody fusion (ALIF) procedures and more devices are created for that purpose, it is important to understand the complications that can arise and the variables that mitigate risk for major and minor complications. PURPOSE To assess complication rates after ALIF with or without posterior instrumentation and variables associated with increased likelihood of postoperative complications. We aim to provide this data as benchmarking to improve patient safety and surgical care. STUDY DESIGN A single-center retrospective cohort study. PATIENT SAMPLE All adult patients who underwent ALIF between 2017 and 2019 was performed OUTCOME MEASURES: Post-operative major and minor complications were evaluated. METHODS Complications were recorded and presented as percentages. Patient demographics, perioperative, and postoperative data were also collected and analyzed between patients who had no complications and those that had any complication. Subgroup analysis of surgical complications were performed by nonparametric Chi-square tests. Continuous variables were compared using Mann-Whitney U tests. RESULTS Ninty-five of three hundred sixty-two (26.2%) of patients experienced a minor or major complication. Among the most common complications found were surgical site infections (5.8%), neurological complications (4.1%), vascular complications (3.6%), and urinary tract infections (3.3%). Patients undergoing ALIF alone with post-operative complications had higher mean age, higher BMI, higher ASA status, and experienced higher estimated blood loss. Patients undergoing ALIF and posterior instrumentation with post-operative complications were more likely to have diabetes and had a higher ASA status. Patients with any complications from both groups had longer length of stay, discharge to a non-home setting and were more likely to be readmitted or return to the operating room. CONCLUSION Our study reveals variables associated with complications at our institution, including age of the patient, BMI, and ASA status leading to higher complications and greater LOS, higher readmission rates, and disposition to skilled facilities.
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Affiliation(s)
- Armin Mortazavi
- Georgetown University School of Medicine, 3900 Reservoir Rd, Washington, DC, USA
| | - William Mualem
- Georgetown University School of Medicine, 3900 Reservoir Rd, Washington, DC, USA
| | - Ehsan Dowlati
- Department of Neurosurgery, 3800 Reservoir Rd, MedStar Georgetown University Hospital, Washington, DC, USA
| | - Hepzibha Alexander
- Division of Neurosurgery, 16001 W Nine Mile Rd, Ascension Providence Hospital, College of Human Medicine, Michigan State University, Southfield, MI, USA
| | - Juliana Rotter
- Department of Neurological Surgery, 200 1st St NW, Mayo Clinic, Rochester, MN, USA
| | - Charles Withington
- Georgetown University School of Medicine, 3900 Reservoir Rd, Washington, DC, USA
| | - Marc Margolis
- Division of Thoracic Surgery, 3800 Reservoir Rd, MedStar Georgetown University Hospital, Washington, DC, USA
| | - Jean-Marc Voyadzis
- Department of Neurosurgery, 3800 Reservoir Rd, MedStar Georgetown University Hospital, Washington, DC, USA.
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Lee TK, Kim JY, Han MS, Lee JK, Moon BJ. Neurologic deficit due to vertebral body osteophytes after oblique lumbar interbody fusion: A case report. Medicine (Baltimore) 2021; 100:e28095. [PMID: 34918664 PMCID: PMC8677899 DOI: 10.1097/md.0000000000028095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/15/2021] [Indexed: 01/05/2023] Open
Abstract
RATIONALE In recent years, oblique lumbar interbody fusion (OLIF), which uses a window between the peritoneum and the iliopsoas muscle to split the muscle to access the lumbar spine, is known as an effective and safe treatment for spinal diseases, such as degenerative disc disease, spondylolisthesis, recurrent disc herniation, and spinal deformity. Despite this fast and useful surgical method, there were often cases of new neurological symptoms or worsening of symptoms after surgery. We analyzed the preoperative risk factors in a patient with neurologic symptoms, such as motor weakness and exacerbation of radiating pain, after OLIF. PATIENT CONCERNS A 78-year-old man presented with complaints of numbness in the soles of both feet. L4-5 stenosis was diagnosed on MRI. We performed bilateral L4 laminotomy and L4-5 percutaneous posterior screw fixation after L4-5 OLIF. Postoperatively, his radiating pain improved, and there were no other neurologic symptoms. In the 6th week after surgery, he complained of pain in both ankles, while in the 10th week, the pain progressively worsened, and there was a decrease in motor performance of the right ankle. DIAGNOSIS Magnetic resonance imaging findings indicated that L4-5 stenosis was resolved. On the basis of the computed tomography findings, the cage was well inserted, the disc height and foramen height increased, and the alignment was good. However, a nerve root injury due to the protruding osteophyte from the inferior endplate of the L4 body was suspected, necessitating exploration of both L4 nerve roots by focusing on the right side. INTERVENTIONS We performed right facetectomy and right foraminotomy. During surgery, it was confirmed that the right L4 nerve root was entrapped by the osteophyte. OUTCOMES Postoperatively, his radiating pain improved, and motor performance of his right ankle was restored. LESSONS A prominently protruding osteophyte is assessed as a possible risk factor for the development of new neurologic deficits after OLIF. In patients with confirmed osteophytes, surgery should be planned taking into consideration the shape of the osteophytes and their relationship to the nerve root.
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A Technical Nuance to Avoid Lumbar Five Radiculopathy with Anterior Lumbar Fusion and Posterior Instrumentation. Case Rep Orthop 2021; 2021:5514720. [PMID: 33833886 PMCID: PMC8016583 DOI: 10.1155/2021/5514720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 02/07/2023] Open
Abstract
The anterior lumbar interbody fusion (ALIF) is a well-established procedure used to treat a multitude of spinal pathologies. When performed at the L5-S1 level, the ALIF is often supplemented with posterior pedicle screw and rod fixation. Because the interbody device can restore disk and foraminal height, one benefit of the ALIF procedure is indirect neural decompression in the spinal canal and neural foramina. If the contour of the posterior rod is not matched to the exact position of the tulip heads on the pedicle screws, spondylolisthesis can be introduced, leading to foraminal stenosis and nerve compression. This concern is particularly germane when the posterior instrumentation is placed percutaneously without any direct foraminal decompression. In this report, we describe a patient who had an L4-S1 ALIF, resulting in new L5-S1 retrolisthesis and worsening L5 radiculopathy. Technical nuances and avoidance strategies are discussed.
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