History of Spinal Surgery in Japan – From the Pioneering Period to the Progressive Era (1911–2017) –

Abe, Hiroshi

doi:10.14245/ns.1938154.077

Cited by 3 publications

(3 citation statements)

References 171 publications

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“…9,[11][12][13][14][15][16][17]19 Over the last century, substantial advances have been made in microsurgical techniques, including operating microscopes and intraoperative spinal cord monitoring. 30,32,33 These accomplishments have led to increased safety and effectiveness in intramedullary tumor resection. Several studies have reported that surgical results have improved over time.…”

Section: Surgical Morbiditymentioning

confidence: 99%

Current Trends in the Surgical Management of Intramedullary Tumors: A Multicenter Study of 1,033 Patients by the Neurospinal Society of Japan

Endo

Inoue²,

Mizuno³

et al. 2022

Neurospine

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Objective: We performed a retrospective observational study to demonstrate the surgical risks and long-term prognoses of intramedullary tumors in Japan using a multicenter registry authorized by the Neurospinal Society of Japan.Methods: Data from 1,033 consecutive patients with intramedullary tumors, treated between 2009 and 2020, were collected from 58 centers. Patients with spinal lipomas or myxopapillary ependymomas were excluded. Patient characteristics, clinical presentations, imaging characteristics, treatments, and outcomes were analyzed. The modified McCormick scale was used to classify functional status. Survival was described using Kaplan-Meier curves, and multivariable logistic regression analyses were performed.Results: The mean age of the patients was 48.4 years. Data of 361 ependymomas, 196 hemangioblastomas, 168 astrocytic tumors, 160 cavernous malformations, and the remaining 126 cases including subependymomas, metastases, schwannomas, capillary hemangiomas, and intravascular B-cell lymphomas were analyzed. Twenty-two patients were undiagnosed. The mean follow-up duration was 46.1 ± 38.5 months. Gross total tumor removal was achieved in 672 tumors (65.1%). On the modified McCormick scale, 234 patients (22.7%) had worse postoperative grades at the time of discharge. However, neurological status gradually improved. At 6 months postoperatively, 251 (27.5%), 500 (54.9%), and 160 patients (17.6%) had improved, unchanged, and worsened grades, respectively. Preoperative functional status, gross total tumor removal, and histopathological type were significantly associated with mortality and functional outcomes.Conclusion: Our findings demonstrate better postoperative functional outcomes in patients with fewer preoperative neurological deficits. Degree of resection, postoperative treatments, and prognoses are closely related to the histology of intramedullary tumors.

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Section: Surgical Morbiditymentioning

confidence: 99%

Current Trends in the Surgical Management of Intramedullary Tumors: A Multicenter Study of 1,033 Patients by the Neurospinal Society of Japan

Endo

Inoue²,

Mizuno³

et al. 2022

Neurospine

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“…The first procedure of spinal neurosurgery (the resection of cervical schwannoma) in Japan was done in 1911. 66 The academic predecessor of the Japan Neurosurgical Society was established in 1948. Spinal neurosurgery became gradually popular around the 1970s.…”

Section: ) Asia (1) Chinamentioning

confidence: 99%

History of Spinal Neurosurgery and Spine Societies

et al. 2020

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“…Conservative measures comprise some form of cervical immobilization (soft collar or brace), restriction of high-risk activities and environments (e.g. slippery surfaces, vigorous neck movement, heavy lifting, and action sports), pain management, and physiotherapy [5].…”

Section: Introductionmentioning

confidence: 99%

Prognostic Indices of Surgical Outcome in Cervical Spondylotic Myelopathy: A Clinical Prospective Study

Marei

Rady

Kamal

et al. 2021

Open Access Maced J Med Sci

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BACKGROUND: One of the most common causes of spinal cord dysfunction is cervical spondylotic myelopathy (CSM) especially in the elderly. Prognostic indices can aid the surgeon preoperatively to detect the patients’ prognosis. AIM: The aim of the work is to better assess patients and to find possible indicators for post-operative improvement or deterioration in CSM patients. METHODS: Forty patients with multiple levels CSM, admitted and operated on in the Neurosurgery Department of Cairo University Hospitals, have been enrolled randomly in this study after fulfilling the criteria for CSM surgical intervention. The patient age, complaint duration, number of levels affected, signal intensity on T1-weighted and T2-weighted magnetic resonance (MR) images, Japan Orthopedic Association (JOA) scoring system, and Nurick’s score were evaluated before surgery and correlated with outcome after 1 year follow-up. RESULTS: About 80% of patients improved after operation with average pre- and post-operative JOA and Nurick scores about 11.23 and 3.12; 14.1 and 1.6, respectively. Patient age, sex, number of levels affected, and signal intensity on T1- weighted and T2-weighted MR images were not significantly associated with post-operative improvement, p > 0.05. However, the only significant prognostic factor was the duration of symptoms if less than 1 year with p < 0.05. CONCLUSION: Short complaint duration coupled with close intra-operative monitoring was directly correlated with good CMS operation outcome while age, sex, number of levels affected, presence of cord signal on MR imaging, and surgical approach appear to have no significant effect on outcome.

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History of Spinal Surgery in Japan – From the Pioneering Period to the Progressive Era (1911–2017) –

Cited by 3 publications

References 171 publications

Current Trends in the Surgical Management of Intramedullary Tumors: A Multicenter Study of 1,033 Patients by the Neurospinal Society of Japan

Current Trends in the Surgical Management of Intramedullary Tumors: A Multicenter Study of 1,033 Patients by the Neurospinal Society of Japan

History of Spinal Neurosurgery and Spine Societies

Prognostic Indices of Surgical Outcome in Cervical Spondylotic Myelopathy: A Clinical Prospective Study

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