ABSTRACT
OBJECTIVE: We aim to report the outcomes and feasibility of endoscopic spine surgery used to treat symptomatic spinal metastases patients. This is the most extensive series of spinal metastases patients who underwent endoscopic spine surgery. METHODS: A worldwide collaborative network group of endoscopic spine surgeons, named 'ESSSORG,' was established. Patients diagnosed with spinal metastases who underwent endoscopic spine surgery from 2012 to 2022 were retrospectively reviewed. All related patient data and clinical outcomes were gathered and analyzed before the surgery and the followtime period of 2 weeks, 1 month, 3 months, and 6 months. RESULTS: A total of 29 patients from South Korea, Thailand, Taiwan, Mexico, Brazil, Argentina, Chile, and India, were included. The mean age was 59.59 years, and 11 of them were female. The total number of decompressed levels was 40. The technique was relatively equal (15 uniportal; 14 biportal). The average length of admission was 4.41 days. Of all patients with an American Spinal Injury Association Impairment Scale of D or lower before surgery, 62.06% reported having at least one recovery grade after the surgery. Almost all clinical outcomes parameters statistically significantly improved and maintained from 2 weeks to 6 months after the surgery. Few surgical-related complications (4 cases) were reported. CONCLUSION: Endoscopic spine surgery is a valid option for treating spinal metastases patients as it could yield comparable results to other minimally invasive spine surgery techniques. As the aim is to improve the quality of life, this procedure is valuable and holds value in palliative oncologic spine surgery.
ABSTRACT
This report aims to demonstrate how to teach anatomy and understanding of spinal endoscopic vision and navigation using mnemonics. The authors present a new surgical technique for teaching endoscopic spinal navigation in a didactic manner with tips such as the "rule of the hand" and decomposition of the endoscopic navigation movement. We demonstrate how the surgery is seen and illustrate how images are projected onto the screen, then divide the navigation into spatial orientation and self-navigation. The article describes the proper puncture technique, how to introduce the working portal, and how to assimilate this new anatomical vision using the "rule of the hand." The surgeon projects their hand on the video screen to guide themselves when starting the navigation and uses the same technique to localize regions of interest during surgery. Finally, the authors break down the navigational movement into three components: forceps positioning, triangulation, and joystick motion. One of the biggest challenges when learning spinal endoscopic surgery is understanding the anatomy seen through the endoscope. By decomposing movements required for navigation, one can understand how to make proper use of the equipment as well as improve their knowledge of this "new anatomy." The learning methods taught in this article have the potential to decrease the learning curve and radiation exposure to those that are still acquainting themselves to spinal endoscopic navigation. We recommend that further studies measure and quantify the impact of these methods on surgical practice.
ABSTRACT
BACKGROUND: The anterior cervical discectomy (ACD) is often used to treat spinal cord and nerve root compressions and the frequent use of interbody fusion (ACDF) has popularized it as a common practice associated or not with cages or plates for maintaining the intervertebral disc height. OBJECTIVE: The aim of this study is to clarify the effectiveness of ACD compared with ACDF, with or without the use of anterior cervical spacer (Cage) or instrumentation with plate fixation (ACDFI). METHODS: randomized controlled trials or quasi-randomized trials were selected for analysis in one segmental level. The comparison criteria were the rates of success and failure with surgery (Odom's' criteria), fusion rates and kyphosis rates. Electronic search was made in the MEDLINE database (Pubmed), in the Central Registry of randomized trials of Cochrane database and EMBASE. RESULTS: Seven studies were selected for analysis. IMPLICATIONS FOR PRACTICE: There is moderate evidence that clinical results of ACD and ACDF are not significant different. There is moderate evidence that addition of intervertebral cage enhance clinical results.There is moderate evidence that anterior cervical plate does not change the clinical results of ACD. There is moderate evidence that ACD produce more segmental kyphosis than ACDF and ACDFI, with use of cage or plate.There is moderate evidence that ACD produce lower rate of fusion than ACDF and than the cages. There is limited evidence of the lower capacity of PMMA to produce fusion. There is limited evidence that fused patients have better outcome than non fused patients.
ABSTRACT
Embora a região clinóide seja comumente abordada pelos neurocirurgiões em várias afecções, sua anatomia e extremamente complexa e variável. O segmento clinóide da artéria carótida interna (ACI) se encontra na transição entre o seio cavernoso e o espaço subaracnóide, limitado pelos dois anéis durais. O segmento posteromedial do anel dural distal não tem contato com nenhuma estrutura óssea, esta peculiaridade anatômica facilita a formação do cavo carotídeo. Os anéis proximal e distal tornam-se relevantes por serem os limites anatômicos. O entendimento do segmento clinóide é importante para o correto diagnóstico e abordagem dos aneurismas desta região. Controle proximal, clinoidectomia anterior, opções de clips fenestrados e auxílio do endoscópio são detalhes técnicos de grande utilidade no manejo dos aneurismas do cavo carotídeo.
Subject(s)
Carotid Arteries , MicrosurgeryABSTRACT
Objetivo: Estudo retrospectivo dos pacientes com adenoma hipofisário atendidos no Serviço de Neurocirurgia do Conjunto Hospitalar do Mandaqui de São Paulo, SP. Pacientes e métodos: Foram estudados, retrospectivamente, 120 casos de tumores de hipófise atendidos entre janeiro de 1993 e maio de 2006. Os dados analisados foram idade, sexo, queixa principal, apresentação clínica, classificação radiológica, tipo histológico e complicações. Resultados: A idade dos pacientes variou de 5 a 69 anos (média de 40,2 anos). Foram 89 pacientes do sexo feminino e 31 do sexo masculino. O déficit visual foi a queixa principal e presente em 52% dos pacientes. Com relação à classificação radiológica: 5,4%foram classificados como Hardy II; 8,1% como Hardy III; 86,5% como Hardy IV. A via de acesso foi transesfenoidal sublabial em 113 pacientes. Apenas três pacientes necessitaram reabordagem do tumor por craniotomia e sete pacientes foram submetidos à craniotomia sem tentativa transesfenoidal.Os tumores foram diagnosticados como não-secretores em 21,6% dos pacientes, prolactinomas em70,2% dos pacientes, secretor de GH em 5,4% e de ACTH e LH em 2,7% cada um. As principais complicações do tratamento cirúrgico foram diabetes insípido e fístula liquórica. Houve quatro óbitos no pós-operatório. Conclusões: A média etária foi de 40,2 anos; o sexo feminino foi mais acometido;a perda visual foi a principal queixa; a maioria dos pacientes se apresentou em grau IV da classificação de Hardy; o principal tipo histológico foi o prolactinoma; a via transesfenoidal sublabial foi suficiente para a maioria dos tumores.
Objective: Retrospective study of 120 cases of pituitary adenomas treated at Serviço de Neurocirurgiado Conjunto Hospitalar do Mandaqui de São Paulo, SP, Brazil. Patients and methods: 120 cases ofpituitary tumors treated between January, 1993 and May, 2006 were studied retrospectively. The data analyzed were: age, sex, main complaint, clinical presentation, radiological classification, type of hormone and complications. Results: The age of the patients varied between five to sixty-nine years (average of 40.2 years). The female/male ratio was 89:31. The visual deficit was the main complaint and present in 52% of the patients. According to Hardys classification, 5.4% were classified as Hardy II; 8.1% as Hardy III and 86.5% as Hardy IV. The surgical access was the transphenoidal in 113 patients. Three patients needed a second approach by craniotomy and seven patients were submitted to craniotomy as the first choice. The tumors were diagnosed as not secretor in 21.6% patients, prolactinomas in 70.2% patients, secretor of GH in 5.4% and ACTH and LH in 2.7% each one. The main complications of the surgical treatment were diabetes insipidus and cerebrospinal fluid leak. There were four deaths in the postoperative period. Conclusions: In this series the average age at presentations was 40.2 years;females were predominant; the visual loss was the main complaint; the majority of the patients were classified as Hardy IV; prolactinoma predominated; the transphenoidal surgical access was enough for the majority of the tumors.
Subject(s)
Humans , Male , Female , Child , Adolescent , Middle Aged , Young Adult , Pituitary Neoplasms/surgery , Pituitary Neoplasms/complications , Pituitary Neoplasms/diagnosis , Pituitary Neoplasms/epidemiologyABSTRACT
O hematoma extradural representa cerca de 1% a 5,5% daslesões intracranianas em pacientes com trauma cranincefes cranincefálico,podendo ser decorrentes de lesão arterial ou venosa. As relaçõesdos vasos com as proeminências ósseas do crânio e seiosdurais, as variáveis aderências da dura-máter ao crânio, osprogressivos mecanismos de desenvolvimento de hipertensãointracraniana na presença de um hematoma extradural, osmodelos de expansão e reabsorção e suas características nosmétodos de imagem, especialmente na tomografi a computadorizadasão discutidos. As indicações do tratamento cirúrgico eo eventual tratamento conservador são comentadas, assim comoo prognóstico quando relacionado à faixa etária do paciente.
