542 results match your criteria unilateral laminectomy

Laminectomy versus Unilateral Hemilaminectomy for the Removal of Intraspinal Schwannoma: Experience of a Single Institution and Review of Literature.

J Neurol Surg A Cent Eur Neurosurg 2021 Apr 12. Epub 2021 Apr 12.

Department of Neurosurgery, Università Politecnica delle Marche, Ancona, Italy.

Background And Study Aims:  Spinal schwannomas are benign slow-growing tumors, and gross total resection is the gold standard of treatment. The conventional surgical approach is laminectomy, which provides a wide working area. Today minimally invasive surgery (MIS) is popular because it is associated with shorter hospital stay, less operative blood loss, minimized tissue traumas and relative postoperative pain, and, and spine surgery, avoidance of spinal instability. Read More

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A Novel Construct Incorporating C2 Unilateral Pedicle and Contralateral Translaminar Screws for Occipitocervical Internal Fixation: An In Vitro Biomechanical Study.

World Neurosurg 2020 Oct 22. Epub 2020 Oct 22.

Department of Neurosurgery, XuanWu Hospital, Capital Medical University, Beijing, China. Electronic address:

Background: Occipitocervical fixation using bilateral C2 pedicle screws (C0-C2BiPS) and occipitocervical fixation using bilateral C2 translaminar screws (C0-C2BiLS) provide satisfactory stability. Bilateral fixation is not feasible for cases of C2 unilateral pedicle morphology abnormality and ipsilateral laminectomy. This study proposed and evaluated novel occipitocervical fixation using C2 unilateral pedicle screw and contralateral translaminar screws (C0-C2PSLS). Read More

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October 2020

Correlation between different instrumentation variants and the degree of destabilization in treating cervical spondylotic spinal canal stenosis by unilateral hemilaminectomy with bilateral decompression: a biomechanical investigation.

Eur Spine J 2021 Mar 10. Epub 2021 Mar 10.

Am Aesculap Platz, Aesculap AG, 78532, Tuttlingen, Germany.

Purpose: Unilateral hemilaminectomy with bilateral decompression (BDZ) was proposed as an alternative decompressive procedure in cervical spondylotic myelopathy (CSM). Despite promising clinical results, the destabilizing effect is yet unknown. We therefore performed a biomechanical study to investigate whether lateral mass screw fixation should follow BDZ. Read More

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Unilateral pulmonary hemorrhage caused by negative pressure pulmonary edema: A case report.

World J Clin Cases 2021 Feb;9(6):1408-1415

Department of Anesthesia and Pain Medicine, Hanyang University, Guri Hospital, Guri 11923, Gyeonggi-do, South Korea.

Background: Unilateral pulmonary hemorrhage is typically reported in young and healthy men with upper respiratory tract obstruction during anesthesia in special situations. Negative pressure in the lungs is created, resulting in negative pressure pulmonary edema (NPPE).

Case Summary: A 78-year-old male patient diagnosed with spinal stenosis was admitted to receive a unilateral laminectomy with bilateral decompression. Read More

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February 2021

Tubular laminectomy and percutaneous vertebroplasty for aggressive vertebral hemangioma.

Surg Neurol Int 2021 20;12:27. Epub 2021 Jan 20.

Department of Neurosurgery, University Hospital of Patras, Rio University Hospital, Patras, Achaia, Greece.

Background: Vertebral hemangiomas (VH) are the most common benign vascular neoplasms of the spine. Aggressive VH (AVH) may become symptomatic due to soft-tissue expansion/extraosseous extension into the paraspinal and/or epidural spaces. There are several options for treating painful AVH, including radiotherapy and/or open surgery. Read More

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January 2021

Postoperative spinal epidural hematoma in a biportal endoscopic spine surgery.

Medicine (Baltimore) 2021 Feb;100(6):e24685

Seoul Sacred Heart General Hospital Orthopedic Surgery Department.

Abstract: Biportal endoscopic spine surgery (BESS) is extending its application to most kind of spine surgeries. Postoperative spinal epidural hematoma (POSEH) is one of the major concerns of this emerging technique. Through this study we aim to investigate the incidence of POSEH in BESS comparing to a conventional spine surgery (CSS). Read More

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February 2021

Preoperative electrophysiologic assessment of C5-innervated muscles in predicting C5 palsy after posterior cervical decompression.

Eur Spine J 2021 Feb 8. Epub 2021 Feb 8.

Department of Orthopedics, Huashan Hospital, Fudan University, 12 Mid- Wulumuqi Road, Shanghai, 200040, China.

Purpose: To investigate the feasibility of both needle electromyography (EMG) and proximal nerve conduction studies (NCS) in predicting C5 palsy after posterior cervical decompression.

Methods: This study included 192 patients with cervical myelopathy undergoing laminoplasty or laminectomy. Preoperatively, all patients accepted bilateral needle EMG detection and proximal NCS that consisted of supramaximally stimulating Erb's point and recording compound muscle action potential (CMAP) from bilateral deltoid. Read More

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February 2021

Clinical Comparison of Unilateral Biportal Endoscopic Laminectomy versus Microendoscopic Laminectomy for Single-Level Laminectomy: A Single-Center, Retrospective Analysis.

World Neurosurg 2021 Apr 19;148:e581-e588. Epub 2021 Jan 19.

Department of Orthopedic Surgery, Aichi Spine Hospital, Aichi, Japan.

Background: The purpose of this study was to compare clinical results of microendoscopic laminectomy (MEL) with those of unilateral biportal endoscopic laminectomy (UBEL) in patients with single-level lumbar spinal canal stenosis.

Methods: The subjects consisted of 181 patients who underwent MEL (139 cases) and UBEL (42 cases) who were followed up for at least 6 months. All patients had lumber canal stenosis for 1 level. Read More

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Cervical laminoplasty with unilateral C4-5 foraminotomy: Technical note and case series.

Neurocirugia (Astur) 2020 Dec 17. Epub 2020 Dec 17.

Departamento de Neurocirugía, FLENI, Buenos Aires, Argentina.

Objective: The open-door laminoplasty technique is widely used in the treatment of multilevel cervical myelopathy. Despite the satisfactory functional and radiological results of this technique, postoperative C5 palsy is still a severe and disabling complication with a variable incidence in the literature. The objective of this article is to describe and demonstrate the surgical technique step by step with the addition of unilateral C4-5 foraminotomy and to evaluate the results obtained to date, with special emphasis on C5 palsy. Read More

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December 2020

Utility of somatosensory and motor-evoked potentials in reflecting gross and fine motor functions after unilateral cervical spinal cord contusion injury.

Neural Regen Res 2021 Jul;16(7):1323-1330

Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin; Department of Orthopedics and Traumatology, The University of Hong Kong, Hong Kong Special Administrative Region; Department of Orthopedics and Traumatology, The Hong Kong University Shenzhen Hospital, Shenzhen, Guangdong Province, China.

Fine motor skills are thought to rely on the integrity of ascending sensory pathways in the spinal dorsal column as well as descending motor pathways that have a neocortical origin. However, the neurophysiological processes underlying communication between the somatosensory and motor pathways that regulate fine motor skills during spontaneous recovery after spinal cord contusion injury remain unclear. Here, we established a rat model of cervical hemicontusive injury using C5 laminectomy followed by contusional displacement of 1. Read More

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Posterior unilateral exposure and stability reconstruction with pedicle and lamina screw fixation for the cervical dumbbell tumorectomy: a case report and biomechanical study.

Eur Spine J 2021 Feb 21;30(2):568-575. Epub 2020 Nov 21.

Division of Spine Surgery, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.

Purpose: Cervical dumbbell tumor is usually removed via a posterior approach and may require the spinal fixation sometimes. However, the present surgical methods involved either more trauma or a higher risk of instability of the cervical spine. A new technique of unilateral exposure and stability reconstruction with pedicle and lamina screws fixation for posterior cervical dumbbell tumorectomy was described and compared with conventional techniques. Read More

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February 2021

Neuroprotective Effect of Ketone Metabolism on Inhibiting Inflammatory Response by Regulating Macrophage Polarization After Acute Cervical Spinal Cord Injury in Rats.

Front Neurosci 2020 23;14:583611. Epub 2020 Oct 23.

Division of Spinal Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.

Objective: To investigate the effects of ketogenic metabolism on macrophage polarization, inflammation inhibition, and function recovery after acute spinal cord injury (SCI) in rats.

Methods: Sixty-four adult male Sprague-Dawley rats were randomly and equally divided into sham, standard diet (SD), ketone diet (KD), and 1, 3-butanediol (BD) groups. All animals underwent C5 unilateral laminectomy, whereas the SD, KD, and BD groups underwent C5 spinal cord hemi-contusion. Read More

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October 2020

Unilateral Bi-portal Endoscopic Decompression via the Contralateral Approach in Asymmetric Spinal Stenosis: A Technical Note.

Asian Spine J 2020 Nov 16. Epub 2020 Nov 16.

Department of Spinal Surgery, Daejeon Woori Hospital, Daejeon, Korea.

We discuss the technical details and operative advantages of approaching pathologies from the contralateral side in cases of asymmetric spinal stenosis. The contralateral approach offers better manipulative freedom and a more accessible target approach along the plane of the pathology, allowing safer decompression and facet preservation; further, this approach is ergonomic for surgeons. We recommend the adoption of this approach in decompressing asymmetric spinal stenosis. Read More

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November 2020

Long-Term Functional Outcomes of Endoscopic Decompression with Destandau Technique for Lumbar Canal Stenosis.

Asian Spine J 2020 Nov 16. Epub 2020 Nov 16.

Department of Neurosurgery, Bel Air Clinic, Bordeaux, France.

Study Design: Retrospective study of patients with lumbar canal stenosis (LCS) operated using endoscopic unilateral laminotomy with bilateral decompression (ULBD).

Purpose: This study aimed to provide a detailed description of the technique of endoscopic decompression in LCS along with a description of the surgical anatomy and its advantages. We also discuss the clinical outcomes in patients operated using this technique. Read More

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November 2020

Advantages of New Endoscopic Unilateral Laminectomy for Bilateral Decompression (ULBD) over Conventional Microscopic ULBD.

Clin Orthop Surg 2020 Sep 29;12(3):330-336. Epub 2020 Jun 29.

Department of Orthopaedic Surgery, Daedong Hospital, Busan, Korea.

Backgroud: Biportal endoscopic unilateral laminectomy for bilateral decompression (ULBD) is an emerging minimally invasive procedure for spinal stenosis. However, reports of the results associated with this surgical method are still lacking.

Methods: We conducted a retrospective study of 60 patients who underwent bilateral decompression for lumbar central canal stenosis. Read More

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September 2020

[Analysis of clinical efficacy of C expanded half lamina excision combined with unilateral open-door laminoplasty for multiple segmental cervical spinal cord compression syndrome].

Zhongguo Gu Shang 2020 Aug;33(8):735-40

Department of Spinal Surgery, the Hospital Affiliated to Ningbo University Medical College, Ningbo 315000, Zhejiang, China.

Objective: To explore the clinical efficacy of C expanded half lamina excision combined with unilateral open door laminoplasty for multiple segmental cervical spinal cord compression syndrome.

Methods: The clinical data of 58 patients with multiple segmental cervical spinal cord compression syndrome underwent surgical treatment between September 2014 and May 2018 were retrospectively analyzed. There were 34 males and 24 females with a mean age of 64. Read More

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Spinal epidural hematoma as a stroke mimic.

J Stroke Cerebrovasc Dis 2020 Sep 23;29(9):105030. Epub 2020 Jun 23.

Department of Neurology, Saiseikai Kumamoto Hospital, Chikami 5-3-1, Minami-ku, Kumamoto 861-4193, Japan. Electronic address:

Purpose: Spinal epidural hematoma is a rare but important disease as it can be a stroke mimic. Our aim was to investigate the clinical characteristics of patients with an activated stroke code and spinal epidural hematoma.

Methods: Patients with an activated stroke code were examined retrospectively. Read More

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September 2020

Novel Instruments for Percutaneous Biportal Endoscopic Spine Surgery for Full Decompression and Dural Management: A Comparative Analysis.

Brain Sci 2020 Aug 4;10(8). Epub 2020 Aug 4.

Joint and Arthritis Research, Orthopaedic Surgery, Himchan Hospital, 120, Sinmok-ro, Yangcheon-gu, Seoul 07999, Korea.

Background: Post-laminectomy syndrome is a common cause of dissatisfaction after endoscopic interlaminar approach. Our aim was to evaluate the efficacy and safety of our two newly designed instruments for laminotomy, a dural protector attached to the scope and a knot pusher for water-tight suturing of the incidental dural tears.

Material And Methods: This was a multicenter evaluation. Read More

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Quantification evaluation of structural autograft versus morcellized fragments autograft in patients who underwent single-level lumbar laminectomy.

Exp Ther Med 2020 Aug 3;20(2):1803-1807. Epub 2020 Jun 3.

Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, Shaanxi 710054, P.R. China.

Posterolateral fusion (PLIF) with autogenous bone graft is considered the gold standard for lumbar spinal fusion. However, the fusion rate and effectiveness of locally derived corticocancellous structural autograft vs. morcellized fragments autograft for lumbar PLIF, following single level lumbar laminectomy in patients with symptomatic lumbar spinal stenosis, remain unknown. Read More

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Patterns of neurological deficits and recovery of postoperative C5 nerve palsy.

J Neurosurg Spine 2020 Jul 31:1-9. Epub 2020 Jul 31.

2Department of Orthopedic Surgery, Maimonides Medical Center, Brooklyn; and.

Objective: Paresis of the C5 nerve is a well-recognized complication of cervical spine surgery. Numerous studies have investigated its incidence and possible causes, but the specific pattern and character of neurological deficits, time course, and relationship to preoperative cord signal changes remain incompletely understood.

Methods: Records of patients undergoing cervical decompressive surgery for spondylosis, disc herniation, or ossification of the longitudinal ligament, including the C4-5 level, were reviewed from a 15-year period, identifying C5 palsy cases. Read More

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Full endoscopic cervical spine surgery.

J Spine Surg 2020 Jun;6(2):383-390

Department of Neurosurgery, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, Providence, RI, USA.

Background: The authors present 4 techniques for fully-endoscopic cervical spine surgery with accompanying case series: (I) posterior cervical unilateral laminectomy and bilateral decompression, (II) posterior cervical foraminotomy (PCF), (III) anterior cervical discectomy, and (IV) anterior transcorporeal discectomy.

Methods: We retrospectively reviewed fully endoscopic cervical spine surgery cases at one high-volume endoscopic center in the United States and present clinical data extracted from endoscopic spine surgery performed over a 6-year period with a minimum clinical follow up of 1 year.

Results: A series of 114 patients who underwent fully endoscopic cervical spine surgery between 2012 and 2018 is presented. Read More

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Nonfusion Muscle-Sparing Technique to Treat Long-Segment Thoracolumbar Extradural Arachnoid Cyst in a Child: A Case Report and Review of the Literature.

World Neurosurg 2020 10 30;142:222-226. Epub 2020 Jun 30.

Department of Orthopedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. Electronic address:

Background: Spinal extradural arachnoid cyst is an uncommon cause of spinal cord compression. It results from a small dural defect that leads to cerebrospinal fluid (CSF) accumulation in the cyst and subarachnoid space, and the cyst can compress the spinal cord and nerve roots. Surgery is the treatment of choice in symptomatic patients, and most cases have an immediately satisfying outcome after surgery. Read More

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October 2020

Unilateral Laminectomy by Endoscopy in Central Lumbar Canal Spinal Stenosis: Technical Note and Early Outcomes.

Spine (Phila Pa 1976) 2020 Jul;45(14):E871-E877

Department of Surgery, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China.

Study Design: Retrospective study.

Objective: To evaluate the outcomes and safety of endoscopic laminectomy for central lumbar canal spinal stenosis.

Summary Of Background Data: . Read More

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Letter to the Editor Regarding "Shape of the Spinal Canal Is Not Associated with Success Rates of Microsurgical Unilateral Laminotomy and Bilateral Decompression for Lumbar Spinal Canal Stenosis".

İsmail Kaya

World Neurosurg 2020 06;138:576

Republic of Turkey, Ministry of Health, Şırnak State Hospital, Department of Neurosurgery, Şırnak, Turkey. Electronic address:

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Bilateral laminotomy through a unilateral approach (minimally invasive) versus open laminectomy for lumbar spinal stenosis.

Br J Neurosurg 2021 Apr 12;35(2):161-165. Epub 2020 Jun 12.

Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland.

Purpose: To compare the outcomes of minimally invasive (MI) bilateral laminotomy via unilateral approach versus open laminectomy in the treatment of lumbar spinal stenosis (LSS).

Materials And Methods: In this prospective study, 62 patients were treated for LSS and were assigned to one of two groups over a 6-month period. Group A comprised 37 patients that underwent MI bilateral laminotomy. Read More

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Tandem Microscopic Slalom Technique: The Use of 2 Microscopes Simultaneously Performing Unilateral Laminotomy for Bilateral Decompression in Multilevel Lumbar Spinal Stenosis.

Global Spine J 2020 Apr 28;10(2 Suppl):88S-93S. Epub 2020 May 28.

Weill Cornell Brain and Spine Center, New York-Presbyterian Hospital, New York, NY, USA.

Study Design: Technical note, retrospective case series.

Objective: Lumbar stenosis can be effectively treated using tubular unilateral laminotomy for bilateral decompression (ULBD). For multilevel stenosis, a multilevel ULBD through separate, alternating crossover approaches has been described as the "slalom technique. Read More

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Bilateral thoracic disc herniation with abdominal wall paresis: a case report.

Acta Neurochir (Wien) 2020 09 4;162(9):2055-2059. Epub 2020 Jun 4.

School of Medicine, Klinikum rechts der Isar, Neurosurgical Department, Technical University of Munich, Munich, Germany.

We present a rare case of a patient initially presenting with unilateral abdominal wall bulging and radicular pain caused by a lateral disc herniation at Th11/12, later suffering from a hernia recurrence with bilateral disc prolapse and motor deficits. The patient underwent sequesterectomy via a right hemilaminectomy at Th11, and after 8 weeks, a bilateral sequesterectomy with semirigid fusion Th11/12 was performed. Unilateral motor deficits at the thoracic level have been discussed in case reports; a bilateral disc protrusion with abdominal wall bulging occurring as a recurrent disc herniation has never been described before. Read More

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September 2020

Hirayama disease - Early MRI diagnosis of subacute medullary ischemia: A case report.

Surg Neurol Int 2020 16;11:115. Epub 2020 May 16.

Neuroradiology Unit, Department of Biomedical, Dental Science and Morphological and Functional Images, Italy.

Background: Hirayama disease (HD) is a rare, benign, and self-limiting motor neuron disorder that results in selective motor impairment of the C7-T1 myotomes. It is characterized by progressive, unilateral, or bilateral asymmetric muscle atrophy of the distal upper extremities and myelopathy.

Case Description: A 23-year-old male presented with bilateral atrophy of the thenar/hypothenar eminences/ interosseous muscles, plus left-hand weakness. Read More

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Lumbar Lateral Recess Decompression: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2020 Sep;19(4):E394

Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan.

Lateral recess stenosis is a common cause of lumbar radiculopathy in adults. A lumbar nerve root travels in the lateral recess prior to exiting the spinal canal via the neural foramen. In the lateral recess, the traversing nerve root is susceptible to compression by the degenerative hypertrophy of the medial facet in addition to hypertrophied ligamentum flavum and herniated intervertebral disc. Read More

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September 2020

Radiologic Efficacy and Patient Satisfaction after Minimally Invasive Unilateral Laminotomy and Bilateral Decompression in Patients with Lumbar Spinal Stenosis: A Retrospective Analysis.

J Neurol Surg A Cent Eur Neurosurg 2020 Nov 15;81(6):475-483. Epub 2020 May 15.

Joint and Arthritis Research, Orthopaedic Surgery, Himchan Hospital, Seoul, Republic of Korea.

Background And Study Aims:  Lumbar spinal stenosis (LSS) is the most common spinal disease in older adults. Although surgical modalities are recommended in patients who are unresponsive to conservative treatment, the most appropriate minimally invasive surgical procedure for patients with LSS remains controversial. Moreover, few previous studies have focused on patient-centered outcomes with radiologic correlation. Read More

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November 2020