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Chin BZ, Yong JH, Wang E, Sim SI, Lin S, Wu PH, Hey HWD. Full-endoscopic versus microscopic spinal decompression for lumbar spinal stenosis: a systematic review & meta-analysis. Spine J 2024:S1529-9430(24)00005-6. [PMID: 38190892 DOI: 10.1016/j.spinee.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 11/22/2023] [Accepted: 12/27/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND CONTEXT Symptomatic lumbar spinal stenosis is routinely treated with spinal decompression surgery, with an increasing trend towards minimally invasive techniques. Endoscopic decompression has emerged as a technique which minimizes approach-related morbidity while achieving similar clinical outcomes to conventional open or microscopic approaches. PURPOSE To assess the safety and efficacy of endoscopic versus microscopic decompression for treatment of lumbar spinal stenosis. STUDY DESIGN Systematic review and meta-analysis. METHODS A systematic review on randomized and nonrandomized studies comparing endoscopic versus microscopic decompression was conducted, in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Treatment effects were computed using pairwise random-effects meta-analysis. Risk of bias was assessed using the Cochrane Risk-of-bias and ROBINS-I tools for randomized and nonrandomized trials respectively. Quality of the overall body of evidence was appraised using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system. RESULTS A total of 19 primary references comprising 1,997 patients and 2,132 spinal levels were included. Endoscopic decompression was associated with significantly reduced intraoperative blood-loss (weighted mean differences [WMD]=-33.29 mL, 95% CI:-51.80 to -14.78, p=.0032), shorter duration of hospital stay (WMD=-1.79 days, 95% CI: -2.63 to 0.95, p=.001), rates of incidental durotomy (RR = 0.63, 95% CI: 0.43 to 0.91, p=.0184) and surgical site infections (RR=0.23, 95% CI: 0.10 to-0.51, p=.001), and a nonsignificant trend towards less back pain, leg pain, and better functional outcomes compared to its microscopic counterpart up to 2-year follow up. CONCLUSIONS Endoscopic and microscopic decompression are safe and effective techniques for treatment of symptomatic lumbar spinal stenosis. Prospective studies of larger power considering medium to long-term outcomes and rates of iatrogenic instability are warranted to compare potential alignment changes and destabilization from either techniques.
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Affiliation(s)
- Brian Zhaojie Chin
- Department of Orthopaedic Surgery, National University Hospital, 1E Kent Ridge Rd, 119228, Singapore; Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block Level 10, 1E Kent Ridge Rd, 119228, Singapore.
| | - Jung Hahn Yong
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block Level 10, 1E Kent Ridge Rd, 119228, Singapore
| | - Eugene Wang
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block Level 10, 1E Kent Ridge Rd, 119228, Singapore
| | - Seth Ian Sim
- Department of Orthopaedic Surgery, National University Hospital, 1E Kent Ridge Rd, 119228, Singapore
| | - Shuxun Lin
- Department of Orthopaedic Surgery, Ng Teng Fong General Hospital, 1 Jurong East St 21, 609606, Singapore; Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block Level 10, 1E Kent Ridge Rd, 119228, Singapore
| | - Pang Hung Wu
- Department of Orthopaedic Surgery, Ng Teng Fong General Hospital, 1 Jurong East St 21, 609606, Singapore
| | - Hwee Weng Dennis Hey
- Department of Orthopaedic Surgery, National University Hospital, 1E Kent Ridge Rd, 119228, Singapore; Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block Level 10, 1E Kent Ridge Rd, 119228, Singapore
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Zhang HS, Chang XT, Wu PH, Song DY, Ge G, Ding W, Hu ZW, Wang GF, Jiang YW, Ye LP. [Clinical analysis of 11 cases multisystem inflammatory syndrome associated with SARS-CoV-2 Omicron variant infection in children]. Zhonghua Er Ke Za Zhi 2024; 62:55-59. [PMID: 38154978 DOI: 10.3760/cma.j.cn112140-20231021-00309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
Objective: To explore the clinical characteristics, diagnosis, treatment, and follow-up of multisystem inflammatory syndrome in children (MIS-C) related to SARS-CoV-2 Omicron variant infection. Methods: A retrospective analysis was conducted on clinical data of 11 children with MIS-C, who were admitted to the Department of Pediatrics of Peking University First Hospital from December 2022 to January 2023. Clinical characteristics, treatment, and follow-up of MIS-C were summarized in this study. Results: The 11 cases contained 7 boys and 4 girls, with an age of 4.4 (2.0, 5.5) years on admission. All the patients had fever, with a duration of 7(5, 9) days. Other clinical manifestations included rash in 7 cases, conjunctival hyperemia in 5 cases, red lips and raspberry tongue in 3 cases, lymphadenopathy in 3 cases, and swollen fingers and toes in 2 cases. There were 8 cases of digestive symptoms, 8 cases of respiratory symptoms, and 3 cases of nervous system symptoms. Eight patients had multi-system injuries, and one of them had shock presentation. All 11 patients were infected with SARS-CoV-2 Omicron BF.7 variant. The laboratory examination results showed that all cases had elevated inflammatory indicators, abnormal coagulation function and myocardial damage. Six patients had elevated white blood cell counts, 5 cases had liver function abnormalities, 3 cases had kidney function abnormalities, and 8 cases had coronary artery involvement. All 11 patients received anti-infection treatment, of which 3 cases received only 2 g/kg intravenous immunoglobulin (IVIG), while the remaining 8 cases received a combination of IVIG and 2 mg/(kg·d) methylprednisolone. Among the 8 cases with coronary artery disease, 6 cases received low molecular weight heparin anticoagulation therapy. All patients were followed up in 2 weeks after being discharged, and their inflammatory markers had returned to normal by that time. The 8 cases with coronary artery disease and 3 cases with pneumonia showed significant improvement or back to normal at the 4-week follow-up. All patients had no new complications or comorbidities during follow-up of more than 3 months. Conclusions: MIS-C may present with Kawasaki disease-like symptoms, with or without gastrointestinal, neurological, or respiratory symptoms. Elevated inflammatory markers, abnormal coagulation function, and cardiac injury contribute to the diagnosis of MIS-C. IVIG and methylprednisolone were the primary treatments for MIS-C, and a favorable short-term prognosis was observed during a follow-up period of more than 3 months.
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Affiliation(s)
- H S Zhang
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
| | - X T Chang
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
| | - P H Wu
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
| | - D Y Song
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
| | - G Ge
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
| | - W Ding
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
| | - Z W Hu
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - G F Wang
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Y W Jiang
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
| | - L P Ye
- Department of Pediatric, Peking University First Hospital, Beijing 100034, China
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Kim HS, Wu PH, Tze-Chun Lau E, Jang IT. Narrative Review of Uniportal Posterior Endoscopic Cervical Foraminotomy. World Neurosurg 2024; 181:148-153. [PMID: 37821026 DOI: 10.1016/j.wneu.2023.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 10/01/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023]
Abstract
Cervical radiculopathy is a common and disabling cervical condition characterized by symptoms including axial neck pain, radicular pain, weakness, and numbness in one or both arms. Common causes include herniated discs and foraminal stenosis, often accompanied by varying degrees of degenerative disc disease and uncovertebral joint hypertrophy. In the treatment of cervical radiculopathy, there is an increasing preference for posterior foraminotomy over anterior cervical discectomy and fusion due to the avoidance of fusion-related complications. As endoscopic spine surgery techniques continue to evolve, there is a rising interest in posterior endoscopic cervical foraminotomy and posterior endoscopic cervical discectomy as effective treatments for cervical radiculopathy. Because these procedures can performed through a single subcentimeter incision with minimal soft tissue damage, they can often be carried out as ambulatory procedures. In this narrative review, we examined current literature addressing the indications, surgical techniques, outcomes, and potential complications associated with posterior cervical endoscopic approaches.
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Affiliation(s)
- Hyeun Sung Kim
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, South Korea.
| | - Pang Hung Wu
- Achieve Spine and Orthopaedic Centre, Mount Elizabeth Hospital, Singapore, Singapore
| | - Eugene Tze-Chun Lau
- JurongHealth Campus, Orthopaedic Surgery, National University Health System, Singapore, Singapore; Kent Ridge Campus, Orthopaedic Surgery, National University Health System, Singapore, Singapore
| | - Il-Tae Jang
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, South Korea
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Xiao SH, Wu PH, Han L, Liu X. [Analysis of disease burden of lung cancer attributable to chromium in Chinese population from 1990 to 2019]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:825-831. [PMID: 38073209 DOI: 10.3760/cma.j.cn121094-20221206-00587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Objective: To analyze the disease burden and change trend of lung cancer attributable to chromium in Chinese population from 1990 to 2019, and to provide reference for the formulation of health policies and strategies of disease prevention and control. Methods: In October 2022, using the data and findings of the burden of disease, injury and risk factor published in the Global Burden of Disease Study 2019 (GBD 2019), the burden of lung cancer and its changes caused by occupational hexavalent chromium exposure in Chinese population from 1990 to 2019 were analyzed according to year and gender. The average age structure of the world population was used as the standard population to calculate standardized indicators, and then compared with the global population. Results: The incidence number, death number, disability adjusted life years (DALY) of lung cancer attributable to chromium in Chinese population of 2019 were 833 cases, 790 cases and 22118 person years, respectively. Compared with 1990 (257 cases, 277 cases, 8631 person years), the increase was 224.1%, 185.2%, 156.3%, higher than the global level (101.0%, 134.2%, 117.2%). The standardized morbidity, mortality and DALY rates of lung cancer attributable to chromium in Chinese population of 2019 were 0.059/100000, 0.056/100000 and 1.555/100000, which respectively increased by 169.7%, 137.4%, 113.3% in comparison with that of 1990 (0.022/100000, 0.023/100000 and 0.729/100000). The average annual percent changes were 18.8%, 15.1% and 13.5%, which were higher than the global level (5.7%, 8.4% and 7.0%). In 2019, the DALY caused by chromium-related lung cancer in the Chinese population accounted for 0.0058% (22118/382205568) of the all-cause disease burden in the Chinese population, and 51.8% (22118/42718) of the global population. In 2019, the disease burden of lung cancer attributable to chromium was higher in males than in females, the number of incidence, death and DALY were 576 cases (69.1%), 525 cases (66.5%) and 14717 person years (66.5%), respectively. Conclusion: In 2019, the proportion of disease burden caused by lung cancer attributable to chromium in the Chinese population is low, but it accounts for a high proportion of the global population burden of lung cancer attributable to chromium, and the standardized incidence, mortality and DALY rates show an increasing trend year by year from 1990 to 2019.
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Affiliation(s)
- S H Xiao
- School of Pharmacy, Jiangsu Health Vocational College, Nanjing 211800, China
| | - P H Wu
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210028, China
| | - L Han
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210028, China
| | - X Liu
- Institute of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210028, China
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Wu PH, Chin BZJ, Kim HS, Sim SI, Jang IT. Uniportal Thoracic Endoscopic Unilateral Laminotomy with Bilateral Decompression of Thoracic Ossification of Ligamentum Flavum: A Systematic Review of Current Literature. World Neurosurg 2023; 178:340-350.e2. [PMID: 37480986 DOI: 10.1016/j.wneu.2023.07.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/24/2023]
Abstract
BACKGROUND Thoracic ossification of ligamentum flavum (TOLF) is a rare disease that often results in worsening neurologic sequelae if left untreated. Although the gold standard treatment for TOLF is open posterior laminectomy, it is often accompanied by high rates of complications and perioperative morbidity. There have been studies looking into feasibility of endoscopic posterior decompression for TOLF, citing potential for lower perioperative morbidity and achieving similar functional outcomes to its open laminectomy counterparts. We provide an up-to-date systematic review of clinical outcomes after endoscopic posterior decompression for TOLF from the latest assemblage of evidence. METHODS A systematic review of the technique was conducted from May 2000 to May 2023. Articles were selected based on PRISMA guidelines. Eligibility of studies was independently by 2 reviewers, with disagreements resolved by a third author. RESULTS Nineteen primary references comprising 337 patients with TOLF who underwent endoscopic posterior decompression were included in the systematic review. Mean follow-up time across all studies ranged from 8.9 to 65.3 months. Mean age ranged from 51.2 to 63 years, with mean intraoperative blood loss ranging from 15 to 62 mL. There is significant improvement in visual analog scale (VAS) score, VAS back, VAS leg, modified Japanese Orthopaedic Association score, and Oswestry Disability Index compared with preoperative recorded values across all studies, with low rates of complications reported. CONCLUSIONS Endoscopic posterior spinal decompression is a safe and effective technique for treatment of TOLF, with a low rate of complications and improvement in pain and function.
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Affiliation(s)
- Pang Hung Wu
- Achieve Spine And Orthopaedic Centre, Mount Elizabeth Hospital, Singapore; National University Health System, Jurong Health Campus, Orthopaedic Surgery, Singapore
| | - Brian Zhao Jie Chin
- National University Health System, Jurong Health Campus, Orthopaedic Surgery, Singapore; National University Health System, Kent Ridge Campus, Orthopaedic Surgery, Singapore
| | - Hyeun Sung Kim
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea.
| | - Seth Ian Sim
- National University Health System, Kent Ridge Campus, Orthopaedic Surgery, Singapore
| | - Il-Tae Jang
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea
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Wu PH, Chin BZJ, Lee P, Woon CY, Kim HS, George R, Lin S, Tan YHG. Ambulatory uniportal versus biportal endoscopic unilateral laminotomy with bilateral decompression for lumbar spinal stenosis-cohort study using a prospective registry. Eur Spine J 2023; 32:2726-2735. [PMID: 36862219 DOI: 10.1007/s00586-023-07620-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 03/03/2023]
Abstract
BACKGROUND Endoscopic spine surgery has been established as a practical, minimally invasive technique for decompression in patients with lumbar spinal stenosis. However, there remains a paucity of studies prospective cohort study comparing uniportal lumbar endoscopic unilateral laminotomy with bilateral decompression and unilateral biportal endoscopic unilateral laminotomy with bilateral decompression with open spinal decompression-both viable techniques with satisfactory clinical outcomes in the treatment of lumbar spinal stenosis. OBJECTIVE/AIM To compare the efficacy of UPE and BPE lumbar decompression surgery for patients with lumbar spinal stenosis. METHODS A prospective registry of patients who had undergone spinal decompression for lumbar stenosis via UPE or BPE under a single fellowship trained spine surgeon was studied. Baseline characteristics, initial clinical presentation, and operative details including complications were recorded for all included patients. Clinical outcomes, such as visual analogue scale and Oswestry Disability Index, were recorded at preoperative, immediate postoperative, 2-week, 3-, 6-, and 12-month follow-up periods. RESULTS A total of 62 patients underwent endoscopic decompression surgery for lumbar spinal stenosis (29 UPE, 33 BPE). No significant baseline differences were found between uniportal and biportal decompression, when comparing operative duration (130 vs. 140 min; p = 0.30), intraoperative blood loss (5.4 vs. 6mLs; p = 0.05), and length of hospital stay (23.6 vs. 20.3 h; p = 0.35). Two patients (7%) who underwent uniportal endoscopic decompression required conversion to open surgery due to inadequate decompression. Intraoperative complication rates were significantly higher in the UPE group (13.4% vs. 0%, p < 0.05). VAS score (leg & back) and ODI improved significantly (p < 0.001) in both endoscopic decompression groups across all follow-up time points, with no appreciable statistical differences between both groups. CONCLUSION UPE has the same efficacy as BPE in the treatment of lumbar spinal stenosis. While UPE surgery enjoys added aesthetic benefits of only one wound, BPE had potentially lower risks of intraoperative complication, inadequate decompression, and conversion to open surgery during early period of learning curve.
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Affiliation(s)
- Pang Hung Wu
- Orthopaedic Surgery, Juronghealth Campus, National University Health System, Singapore, Singapore.
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Orthopaedic Department, JurongHealth Campus, National University Health System, Singapore, Singapore.
| | - Brian Zhao Jie Chin
- Orthopaedic Surgery, Juronghealth Campus, National University Health System, Singapore, Singapore
| | - Peng Lee
- Orthopaedic Surgery, Juronghealth Campus, National University Health System, Singapore, Singapore
| | - Chang Yi Woon
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Hyeun Sung Kim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of South Korea
| | - Rajeesh George
- Orthopaedic Surgery, Juronghealth Campus, National University Health System, Singapore, Singapore
| | - Shuxun Lin
- Orthopaedic Surgery, Juronghealth Campus, National University Health System, Singapore, Singapore
| | - Yu-Heng Gamaliel Tan
- Orthopaedic Surgery, Juronghealth Campus, National University Health System, Singapore, Singapore
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Kim HS, Wu PH, Chin BZJ, Jang IT. Clinical and Radiological Outcomes of a Comparative Study of Anterior Cervical Decompression and Fusion with Partial Pediculotomy, Partial Vertebrotomy (PPPV) Posterior Endoscopic Cervical Decompression (PECD) for Cervical Foraminal Pathology. Medicina (Kaunas) 2023; 59:1222. [PMID: 37512034 PMCID: PMC10383634 DOI: 10.3390/medicina59071222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/08/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023]
Abstract
Background and Objectives: The purpose was to compaSre medium-term clinical and radiological outcomes of Partial Pediculotomy, Partial Vertebrotomy (PPPV) Posterior Endoscopic Cervical Decompression (PECD) surgery versus Anterior Cervical Discectomy and Fusion (ACDF) for patients with cervical disc herniations and foraminal pathologies. Materials and Methods: A prospective registry of patients who had undergone either PPPV PECD surgery or ACDF surgery for cervical disc herniation or foraminal pathologies under a single fellowship-trained spine surgeon was performed. The baseline characteristics and operative details including complications were recorded for all included patients. The clinical outcomes evaluated include VAS, MJOA, motor score, and NDI and MacNab's score. The radiological parameters in neutral-measured facet length, facet area, disc height, C2-C7 angle, neck tilt angle, T1 slope and thoracic inlet angle were also evaluated. Results: A total of 55 patients (29 PPPV PECD, 26 ACDF) were included, with mean follow-up periods of 21.9 and 32.3 months, respectively. Each cohort was noted to have a single case of surgical complication. Statistically significant changes of facet area (49.05 ± 14.50%) and facet length (52.71 ± 15.11%) were noted in the PPPV PECD group. At neutral alignment of the neck on a lateral X-ray, compared to ACDF, PPPV PECD had a statistically significant change in neck tilt angle (-11.68 ± 17.35°) and T1 slope angle (-11.69 ± 19.58°). Whilst both PPPV PECD and ACDF had significant improvements in VAS, MJOA and NDI postoperatively, PPPV PECD was found to be superior across all above scores at various follow-up timepoints compared to its ACDF counterparts. Conclusions: PPPV PECD surgery achieved a satisfactory radiological correction of neck alignment and significantly improved clinical outcomes at medium-term follow-up for our cohort of patients, highlighting its feasibility in treating patients with cervical disc herniations and foraminal pathologies.
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Affiliation(s)
- Hyeun Sung Kim
- Harrison Spinartus Hospital, Chungdam, Seoul 06084, Republic of Korea
| | - Pang Hung Wu
- Achieve Spine and Orthopaedic Centre, Mount Elizabeth Hospital, Singapore 228510, Singapore
| | - Brian Zhao Jie Chin
- Orthopaedic Surgery, Jurong Health Campus, National University Health System, 1 Jurong East Street 21, Singapore 609606, Singapore
| | - Il Tae Jang
- Spines Surgery, Nanoori Gangnam Hospital, Seoul 06048, Republic of Korea
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Wu PH, Lau ETC, Kim HS, Grasso G, Jang IT. Spinal Canal Remodeling and Indirect Decompression of Contralateral Foraminal Stenosis After Endoscopic Posterolateral Transforaminal Lumbar Interbody Fusion. Neurospine 2023; 20:99-109. [PMID: 37016858 PMCID: PMC10080438 DOI: 10.14245/ns.2346132.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/16/2023] [Indexed: 04/03/2023] Open
Abstract
Objective: There is a lack of literature on indirect decompression in uniportal endoscopic posterolateral transforaminal lumbar interbody fusion (EPTLIF). Our aim is to evaluate the dimensions of the spinal canal and contralateral foramen before and after EPTLIF.Methods: This is a retrospective study of patients who underwent EPTLIF in a tertiary spine centre over a 2-year period. The cross-sectional area of the spinal canal and the contralateral foramen at the level of fusion were measured on magnetic resonance imaging scan at 1-day postoperation and at the final follow-up. Patients were grouped according to the decompression performed as per the clinician’s judgement.Results: One hundred fifty-two levels of fusion were performed in 120 patients. There was a statistically significant clinical improvement in visual analogue scale and Oswestry Disability Index scores postoperation. The measurements of the spinal canal area were 106.0 mm<sup>2</sup>, 138.8 mm<sup>2</sup>, and 195.5 mm<sup>2</sup>; while contralateral foraminal area were 73.2 mm<sup>2</sup>, 104.4 mm<sup>2</sup>, and 120.7 mm<sup>2</sup> at preoperation, 1-day postoperation, and at the final follow-up, respectively (p < 0.001). For the subgroup analyses, spinal canal area measurements for the bilateral decompression cohort (n = 35) were 57.0 mm<sup>2</sup>, 123.9 mm<sup>2</sup>, and 191.8 mm<sup>2</sup>; for the ipsilateral decompression cohort (n = 42) were 89.3 mm<sup>2</sup>, 128.9 mm<sup>2</sup>, 183.3 mm<sup>2</sup>; and for the cohort without any decompression and only cage inserted (n = 75) were 138.3 mm<sup>2</sup>, 151.2 mm<sup>2</sup>, and 204.1 mm<sup>2</sup> (p < 0.001). Contralateral foraminal area measurements were 73.3 mm<sup>2</sup>, 106.4 mm<sup>2</sup> and 120.4 mm<sup>2</sup> in the bilateral decompression cohort; 69.5 mm<sup>2</sup>, 99.0 mm<sup>2</sup>, 116.9 mm<sup>2</sup> in the ipsilateral decompression cohort; and 75.1 mm<sup>2</sup>, 106.5 mm<sup>2</sup>, 122.9 mm<sup>2</sup> in the cohort without any decompression (p < 0.001).Conclusion: Indirect decompression of both the spinal canal and the contralateral foramen can be achieved via EPTLIF. Decompression on an asymptomatic contralateral side is not necessary.
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Affiliation(s)
- Pang Hung Wu
- National University Health System, Juronghealth Campus, Department of Orthopaedic Surgery, Singapore
| | - Eugene Tze-Chun Lau
- National University Health System, Juronghealth Campus, Department of Orthopaedic Surgery, Singapore
| | - Hyeun-Sung Kim
- Neurosurgical Clinic, Department of Biomedicine, Neurosciences and Advanced Diagnostics University for Palermo, Palermo, Italy
- Corresponding Author Hyeun-Sung Kim Department of Neurosurgery, Nanoori Hospital Gangnam, 731 Eonju-ro, Gangnam-gu, Seoul 06048, Korea ,
| | - Giovanni Grasso
- Neurosurgical Clinic, Department of Biomedicine, Neurosciences and Advanced Diagnostics University for Palermo, Palermo, Italy
| | - Il-Tae Jang
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Korea
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Kim HS, Wu PH, Jang IT. Commentary on “Complications and Management of Endoscopic Spinal Surgery”. Neurospine 2023; 20:78-79. [PMID: 37016855 PMCID: PMC10080424 DOI: 10.14245/ns.2346308.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Affiliation(s)
- Hyeun-Sung Kim
- Gangnam Nanoori Hospital, Spine Surgery, Seoul, Korea
- Corresponding Author Hyeun-Sung Kim Department of Neurosurgery, Nanoori Hospital Gangnam, 731 Eonju-ro, Gangnam-gu, Seoul 06048, Korea ,
| | - Pang Hung Wu
- National University Health System, Juronghealth Campus, Department of Orthopaedic Surgery, Singapore
| | - Il-Tae Jang
- Gangnam Nanoori Hospital, Spine Surgery, Seoul, Korea
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Kim HS, Wu PH, Kim JY, Lee JH, Lee YJ, Kim DH, Lee JH, Jeon JB, Jang IT. Retrospective Case Control Study: Clinical and Computer Tomographic Fusion and Subsidence Evaluation for Single Level Uniportal Endoscopic Posterolateral Approach Transforaminal Lumbar Interbody Fusion Versus Microscopic Minimally Invasive Transforaminal Interbody Fusion. Global Spine J 2023; 13:304-315. [PMID: 35649510 PMCID: PMC9972267 DOI: 10.1177/2192568221994796] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
STUDY DESIGN Retrospective comparative study. OBJECTIVE Assessment of difference in clinical and computer tomographic outcomes between the 2 cohorts. METHODS Computer tomographic evaluation by Bridwell's grade, Kim's stage, Kim's subsidence grade and clinical evaluation by VAS, ODI and McNab's criteria on both cohorts. RESULTS 33 levels of Endo-TLIF and 22 levels of TLIF were included, with a mean follow up of 14.3 (10-24) and 22.9 (13-30) months respectively. Both Endo-TLIF and TLIF achieved significant improvement of pain and ODI at post-operative 4 week, 3 months and at final follow up with VAS 4.39 ± 0.92, 5.27 ± 1.16 and 5.73 ± 1.21in Endo-TLIF and 4.55 ± 1.16, 5.05 ± 1.11 and 5.50 ± 1.20 in TLIF respectively and ODI at post-operative 1 week, 3 months and final follow up were 43.15 ± 6.57, 49.27 ± 8.24 and 51.73 ± 9.09 in Endo-TLIF and 41.73 ± 7.98, 46.18± 8.46 and 49.09 ± 8.98 in TLIF respectively, P < 0.05. Compared to TLIF, Endo-TLIF achieved better VAS with 0.727 ± 0.235 at 3 months and 0.727 ± 0.252 at final follow up and better ODI with 3.88 ± 1.50 at 3months and 3.42 ± 1.63 at final follow up, P < 0.05. At 6 months radiological evaluation comparison of the Endo-TLIF and TLIF showed significant with more favorable fusion rate in Endo-TLIF of -0.61 ± 0.12 at 6 months and -0.49 ± 0.12 at 1 year in Bridwell's grading and 0.70 ± 0.15 at 6 months and 0.56 ± 0.14 at 1 year in Kim's stage.There is less subsidence of 0.606 ± 0.18 at 6 months and -0.561 ± 0.20 at 1 year of Kim's subsidence grade, P < 0.05. CONCLUSION Application of single level uniportal endoscopic posterolateral lumbar interbody fusion achieved better clinical outcomes and fusion rate with less subsidence than microscopic minimally invasive transforaminal lumbar interbody fusion in mid-term evaluation for our cohorts of patients.
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Affiliation(s)
- Hyeun Sung Kim
- Spine Surgery, Nanoori Gangnam Hospital,
Seoul, Korea,Hyeun Sung Kim, MD, PhD, Spine Surgery,
Nanoori Gangnam Hospital, Dogok-ro Gangnam-gu Seoul, Seoul 06278, Korea.
| | - Pang Hung Wu
- Spine Surgery, Nanoori Gangnam Hospital,
Seoul, Korea,Orthopaedic Surgery, National University
Health System, JurongHealth Campus, Singapore, Singapore
| | - Ji Yeon Kim
- Spine Surgery, Nanoori Gangnam Hospital,
Seoul, Korea
| | - Jun Hyung Lee
- Department of Internal Medicine, Chosun
University School of Medicine, Gwangju, Korea
| | - Yeon Jin Lee
- Spine Surgery, Nanoori Gangnam Hospital,
Seoul, Korea
| | - Dae Hwan Kim
- Spine Surgery, Nanoori Gangnam Hospital,
Seoul, Korea
| | - Jun Hyung Lee
- Spine Surgery, Nanoori Gangnam Hospital,
Seoul, Korea
| | - Jun Bok Jeon
- Spine Surgery, Nanoori Gangnam Hospital,
Seoul, Korea
| | - Il-Tae Jang
- Spine Surgery, Nanoori Gangnam Hospital,
Seoul, Korea
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Kim HS, Wu PH. Paradigm Shift in Spinal Surgery. Neurospine 2023; 20:5-6. [PMID: 37016847 PMCID: PMC10080414 DOI: 10.14245/ns.2245068.534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 04/03/2023] Open
Affiliation(s)
| | - Pang Hung Wu
- National University Health System, JurongHealth Campus, Orthopaedic Surgery, Singapore
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12
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Wu PH, Kim HS, Grasso G, An JW, Kim M, Lee I, Park JS, Lee JH, Kang S, Lee J, Yi Y, Lee JH, Park JH, Lim JH, Jang IT. Remodeling of Epidural Fluid Hematoma after Uniportal Lumbar Endoscopic Unilateral Laminotomy with Bilateral Decompression: Comparative Clinical and Radiological Outcomes with a Minimum Follow-up of 2 Years. Asian Spine J 2023; 17:118-129. [PMID: 35785910 PMCID: PMC9977969 DOI: 10.31616/asj.2021.0366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 01/23/2022] [Indexed: 11/23/2022] Open
Abstract
STUDY DESIGN Retrospective cohort study. PURPOSE To evaluate the clinical and radiological effects of epidural fluid hematoma in the medium term after lumbar endoscopic decompression. OVERVIEW OF LITERATURE There is limited literature comparing the effect of postoperative epidural fluid hematoma after uniportal endoscopic decompression. METHODS Magnetic resonance imaging (MRI) and clinical evaluation were performed for patients with single-level uniportal endoscopic lumbar decompression with a minimum follow-up of 2 years. RESULTS A total of 126 patients were recruited with a minimum follow-up of 26 months. The incidence of epidural fluid hematoma was 27%. Postoperative MRI revealed a significant improvement in the postoperative dura sac area at postoperative day 1 and at the upper endplate at 6 months in the hematoma cohort (39.69±15.72 and 26.89±16.58 mm2) as compared with the nonhematoma cohort (48.92±21.36 and 35.1±20.44 mm2), respectively (p <0.05); and at the lower endplate on postoperative 1 day in the hematoma cohort (51.18±24.69 mm2) compared to the nonhematoma cohort (63.91±27.92 mm2) (p <0.05). No significant difference was observed in the dura sac area at postoperative 1 year in both cohorts. The hematoma cohort had statistically significant higher postoperative 1-week Visual Analog Scale (VAS; 3.32±0.68) pain and Oswestry Disability Index (ODI; 32.65±5.56) scores than the nonhematoma cohort (2.99±0.50 and 30.02±4.84, respectively; p <0.05). No significant difference was found at the final follow-up VAS, ODI, and MRI dura sac area. CONCLUSIONS Epidural fluid hematoma is a common early postoperative MRI finding in lumbar endoscopic unilateral laminotomy with bilateral decompression. Conservative management is the preferred treatment option for patients who do not have a neurological deficit. Symptoms last only a few days and are self-limiting. A common endpoint is a remodeled fluid hematoma and the subsequent expansion of the dura sac area.
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Affiliation(s)
- Pang Hung Wu
- Spine Surgery, Nanoori Gangnam Hospital, Seoul,
Korea,Department of Orthopaedic Surgery, Juronghealth Campus, National University Health System,
Singapore
| | | | - Giovanni Grasso
- Neurosurgical Clinic, Department of Biomedicine, Neurosciences and Advanced Diagnostics University for Palermo, Palermo,
Italy
| | - Jin Woo An
- Nanoori Spine and Joint Clinic with Saudi German Hospital in Dubai, Dubai,
United Arab Emirates
| | - Myeonghun Kim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul,
Korea
| | - Inkyung Lee
- Spine Surgery, Nanoori Gangnam Hospital, Seoul,
Korea
| | | | | | - Sangsoo Kang
- Spine Surgery, Nanoori Gangnam Hospital, Seoul,
Korea
| | - Jeongshik Lee
- Spine Surgery, Nanoori Gangnam Hospital, Seoul,
Korea
| | - Yeonjin Yi
- Spine Surgery, Nanoori Gangnam Hospital, Seoul,
Korea
| | - Jun Hyung Lee
- Department of Internal Medicine, Chosun University College of Medicine, Gwangju,
Korea
| | - Jun Hwan Park
- Faculty of Medicine, University of Debrecen, Debrecen,
Hungary
| | - Jae Hyeon Lim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul,
Korea
| | - Il-Tae Jang
- Spine Surgery, Nanoori Gangnam Hospital, Seoul,
Korea
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13
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Wu PH, Kim HS, An JW, Kim M, Lee I, Park JS, Lee JH, Kang S, Lee J, Yi Y, Lee JH, Park JH, Lim JH, Jang IT. Prospective Cohort Study with a 2-Year Follow-up of Clinical Results, Fusion rate, and Muscle Bulk for Uniportal Full Endoscopic Posterolateral Transforaminal Lumbar Interbody Fusion. Asian Spine J 2023; 17:373-381. [PMID: 36693430 PMCID: PMC10151642 DOI: 10.31616/asj.2022.0053] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/09/2022] [Indexed: 01/26/2023] Open
Abstract
Study Design Retrospective cohort study. Purpose Postoperative evaluation of the cross-sectional area of paraspinal muscle and clinical findings in patients who had interlaminar route uniportal full endoscopic posterolateral transforaminal lumbar interbody fusion (EPTLIF) after 2 years. Overview of Literature There are limited short-term follow-up studies on efficacy, safety, and physiological changes with a 2-year follow-up. There is no study on paraspinal muscle cross-sectional area change in patients who had undergone uniportal EPTLIF. Methods We evaluated patients who underwent EPTLIF with a minimum 24-month follow-up. Clinical parameters of the Visual Analog Scale (VAS) and Oswestry Disability Index (ODI) were measured at the preoperative, 1-week postoperative mark, postoperative 3-month mark, and final follow-up. Preoperative and 1-year postoperative magnetic resonance imaging measurement of preoperative and postoperative Kjaer grade, right and left psoas muscle mass area, and right and left paraspinal muscle mass area was performed. Results EPTLIF with a minimum 24-month follow-up of 35 levels was included. The complication rate was 6%, and the mean Bridwell's fusion grade was 1.37 (1-2). There was statistically significant improvement at 1 week, 3 months, and 2 years in VAS (4.11±1.23, 4.94±1.30, and 5.46±1.29) and in ODI (40.34±10.06, 46.69±9.14, and 49.63±8.68), respectively (p <0.05). Successful operation rate with excellent and good MacNab's criteria at 2 years was 97%. There was an increment of statistically significant bilateral psoas muscle cross-sectional area, right side (70.03±149.1 mm²) and left side (67.59±113.2 mm²) (p <0.05). Conclusions Uniportal EPTLIF achieved good fusion and improved clinical outcomes with favorable paraspinal musculature bulk at the 2-year follow-up.
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Affiliation(s)
- Pang Hung Wu
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Korea.,Department of Orthopaedic Surgery, Juronghealth Campus, National University Health System, Singapore
| | | | - Jin Woo An
- Nanoori Spine and Joint Clinic with Saudi German Hospital Dubai, Dubai, UAE
| | - Myeonghun Kim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Korea
| | - Inkyung Lee
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Korea
| | | | | | - Sangsoo Kang
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Korea
| | - Jeongshik Lee
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Korea
| | - Yeonjin Yi
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Korea
| | - Jun Hyung Lee
- Department of Internal Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Jun Hwan Park
- Medicine of the University of Debrecen, Debrecen, Hungary
| | - Jae Hyeon Lim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Korea
| | - Il-Tae Jang
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Korea
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14
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Kim HS, Wu PH, Jie Chin BZ, Jang IT. Systematic Review of Current Literature on Clinical Outcomes of Uniportal Interlaminar Contralateral Endoscopic Lumbar Foraminotomy for Foraminal Stenosis. World Neurosurg 2022; 168:392-397. [DOI: 10.1016/j.wneu.2022.04.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 12/14/2022]
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15
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Kim HS, Wu PH, Jang IT. Narrative Review of Pathophysiology and Endoscopic Management of Basivertebral and Sinuvertebral Neuropathy for Chronic Back Pain. J Korean Neurosurg Soc 2022:jkns.2022.0140. [DOI: 10.3340/jkns.2022.0140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/21/2022] [Indexed: 11/30/2022] Open
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16
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Rossignol P, Duarte K, Bresso E, A Å, Devignes MD, Eriksson N, Girerd N, Glerup R, Jardine AG, Holdaas H, Lamiral Z, Leroy C, Massy Z, März W, Krämer B, Wu PH, Schmieder R, Soveri I, Christensen JH, Svensson M, Zannad F, Fellström B. NT-proBNP and stem cell factor plasma concentrations are independently associated with cardiovascular outcomes in end-stage renal disease hemodialysis patients. Eur Heart J Open 2022; 2:oeac069. [PMID: 36600882 PMCID: PMC9797490 DOI: 10.1093/ehjopen/oeac069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/14/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022]
Abstract
Aims End-stage renal disease (ESRD) treated by chronic hemodialysis (HD) is associated with poor cardiovascular (CV) outcomes, with no available evidence-based therapeutics. A multiplexed proteomic approach may identify new pathophysiological pathways associated with CV outcomes, potentially actionable for precision medicine. Methods and results The AURORA trial was an international, multicentre, randomized, double-blind trial involving 2776 patients undergoing maintenance HD. Rosuvastatin vs. placebo had no significant effect on the composite primary endpoint of death from CV causes, nonfatal myocardial infarction or nonfatal stroke. We first compared CV risk-matched cases and controls (n = 410) to identify novel biomarkers using a multiplex proximity extension immunoassay (276 proteomic biomarkers assessed with OlinkTM). We replicated our findings in 200 unmatched cases and 200 controls. External validation was conducted from a multicentre real-life Danish cohort [Aarhus-Aalborg (AA), n = 331 patients] in which 92 OlinkTM biomarkers were assessed. In AURORA, only N-terminal pro-brain natriuretic peptide (NT-proBNP, positive association) and stem cell factor (SCF) (negative association) were found consistently associated with the trial's primary outcome across exploration and replication phases, independently from the baseline characteristics. Stem cell factor displayed a lower added predictive ability compared with NT-ProBNP. In the AA cohort, in multivariable analyses, BNP was found significantly associated with major CV events, while higher SCF was associated with less frequent CV deaths. Conclusions Our findings suggest that NT-proBNP and SCF may help identify ESRD patients with respectively high and low CV risk, beyond classical clinical predictors and also point at novel pathways for prevention and treatment.
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Affiliation(s)
- P Rossignol
- Corresponding author. Tel: +33383157322, Fax: +33383157324,
| | - K Duarte
- Université de Lorraine, Inserm, Centre d’Investigations Cliniques- 1433, and Inserm U1116, CHRU Nancy, F-CRIN INI-CRCT, 4, rue du Morvan, 54500 Nancy, France
| | - E Bresso
- Université de Lorraine, Inserm, Centre d’Investigations Cliniques- 1433, and Inserm U1116, CHRU Nancy, F-CRIN INI-CRCT, 4, rue du Morvan, 54500 Nancy, France,LORIA (CNRS, Inria NGE, Université de Lorraine), F-CRIN INI-CRCT, Vandœuvre-lès-Nancy, France
| | - Åsberg A
- Department of Transplantation Medicine Oslo University Hospital–Rikshospitalet, Oslo, Norway,Norway and Department of Pharmaceutical Biosciences, School of Pharmacy, University of Oslo, Oslo, Norway
| | - M D Devignes
- LORIA (CNRS, Inria NGE, Université de Lorraine), F-CRIN INI-CRCT, Vandœuvre-lès-Nancy, France
| | - N Eriksson
- UCR Uppsala Clinical Research Center, Uppsala Science Park, Uppsala, Sweden
| | - N Girerd
- Université de Lorraine, Inserm, Centre d’Investigations Cliniques- 1433, and Inserm U1116, CHRU Nancy, F-CRIN INI-CRCT, 4, rue du Morvan, 54500 Nancy, France
| | - R Glerup
- Department of Nephrology, Aalborg University Hospital, Aalborg, Denmark
| | - A G Jardine
- Renal Research Group, British Heart Foundation Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | | | - Z Lamiral
- Université de Lorraine, Inserm, Centre d’Investigations Cliniques- 1433, and Inserm U1116, CHRU Nancy, F-CRIN INI-CRCT, 4, rue du Morvan, 54500 Nancy, France
| | - C Leroy
- Université de Lorraine, Inserm, Centre d’Investigations Cliniques- 1433, and Inserm U1116, CHRU Nancy, F-CRIN INI-CRCT, 4, rue du Morvan, 54500 Nancy, France
| | - Z Massy
- CESP, Center for Research in Epidemiology and Population Health, University Paris-Saclay, University Paris-Sud, UVSQ, Villejuif, France,Division of Nephrology, Ambroise Paré University Hospital, APHP, Boulogne, Billancourt and FCRIN INI-CRCT, Paris, France
| | - W März
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria,Mannheim Institute of Public Health, Social and Preventive Medicine, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany,SYNLAB Academy, SYNLAB Holding Deutschland GmbH, Mannheim and Augsburg, Germany
| | - B Krämer
- Medical Clinic V, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - P H Wu
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden,Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - R Schmieder
- Department of Nephrology and Hypertension, University Hospital Erlangen, Erlangen, Germany
| | - I Soveri
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - J H Christensen
- Department of Nephrology, Aalborg University Hospital, Aalborg, Denmark
| | - M Svensson
- Department of Nephrology, Aarhus University Hospital, Aarhus, Denmark
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Wu PH, Zhou Y, Wu KQ, Yin BB, Zhu B. [Correlation between serum IgM antibody and viral load with clinical symptoms in neonates infected with cytomegalovirus]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1642-1647. [PMID: 36372757 DOI: 10.3760/cma.j.cn112150-20211123-01080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
To investigate the correlation between serum cytomegalovirus (CMV) IgM antibody/viral load and infection-related clinical symptoms in neonates infected with CMV, and provide basis for clinical assessment and monitoring of neonatal CMV infection. A total of 70 neonates with CMV infection admitted to neonatology in Women's Hospital, School of Medicine Zhejiang University, from January 2014 to December 2020 were included in this study. Using real-time quantitative PCR as the diagnostic criteria, congenital cytomegalovirus-infected neonates (n=29) was diagnosed within the first 3 weeks of life, otherwise, it was postnatally acquired cytomegalovirus infection (n=41). The differences in general information and clinical indicators between IgM antibody positive and negative patients were analyzed, combined with the PCR result, the correlation between the IgM/viral load and the occurrence of symptoms were analyzed. T-test and non-parametric test were used to compare the differences of indicators between groups, logistic regression was used for multivariate analysis, and ROC curve was used to evaluate the auxiliary diagnostic value of relevant indicators. In the congenital CMV infection group and the postnatally acquired CMV infection group, viral load and the proportion of symptomatic patients in IgM positive group were significantly higher than IgM negative group (Z=-2.616, P=0.008; 80% vs. 21%, P=0.005) (Z=-2.405, P=0.016; 56% vs. 19%, P=0.025). Logistic regression analysis of the included population showed the risk factors of CMV infection-related symptoms were IgM positive (OR 4.562, 95%CI:1.461-14.246,P=0.009) and viral load (OR 1.728, 95%CI:1.068-2.798,P=0.026). Regressive analysis for single symptom with correction showed IgM antibody positive was associated with hearing dysfunction(OR 3.954, 95%CI:1.066-14.677,P=0.040),the CMV viral load was associated with thrombocytopenia (OR 2.228, 95%CI:1.124-4.413,P=0.022), and brain imaging abnormalities (OR 3.956, 95%CI:1.421-11.011, P=0.008). Receiver operating characteristic (ROC) analysis showed the area under ROC curve of CMV viral load for brain imaging abnormalities was 0.883 (P<0.001), with a sensitivity of 75.0% and specificity of 90.3%. For neonates infected with CMV, the risk of infection-related clinical symptoms and hearing dysfunction may be increased when IgM antibody was positive. Meanwhile, the higher the CMV viral load at diagnosis, the higher the risk of thrombocytopenia and abnormal brain imaging.
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Affiliation(s)
- P H Wu
- Department of Clinical Laboratory, Women's Hospital,School of Medicine Zhejiang University, Hangzhou 310006, China
| | - Y Zhou
- Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - K Q Wu
- Department of Clinical Laboratory, Women's Hospital,School of Medicine Zhejiang University, Hangzhou 310006, China
| | - B B Yin
- Department of Clinical Laboratory, Women's Hospital,School of Medicine Zhejiang University, Hangzhou 310006, China
| | - B Zhu
- Department of Clinical Laboratory, Women's Hospital,School of Medicine Zhejiang University, Hangzhou 310006, China
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18
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Kim HS, Wu PH, Jang IT. Stronger Together: Collaboration of Asia Pacific With the Rest of the World in Research and Education to Advance the Science, Art, and Practice of Spinal Surgery. Int J Spine Surg 2022; 16:859-860. [PMID: 36220778 PMCID: PMC9926869 DOI: 10.14444/8316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Hyeun-Sung Kim
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of Korea
| | - Pang Hung Wu
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of Korea,National University Health System, Juronghealth Campus, Orthopaedic Surgery, Singapore
| | - Il-Tae Jang
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of Korea
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Ou CX, Wu PH, Xie JX, Zhang XX, Ma JJ, Deng ZA, Yang XJ, Li Y, Yuan D, Xue LN, Dong C, Deng ZN, Zhang QL. [Efficacy of omalizumab in the treatment of eosinophilic granulomatous polyangiitis with asthma as the first symptom]. Zhonghua Yi Xue Za Zhi 2022; 102:2684-2689. [PMID: 36096695 DOI: 10.3760/cma.j.cn112137-20220327-00640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the efficacy, and safety of omalizumab in the treatment of eosinophilic granulomatous with polyangiitis (EGPA) with asthma as the first symptom. Method: The clinical characteristics of 22 EGPA patients with asthma as the first symptom treated with omalizumab in the First Affiliated Hospital of Guangzhou Medical University from March 2018 to December 2020 were retrospectively analyzed. The asthma control test (ACT) score, the frequency of asthma exacerbation (AE), the Birmingham Vasculitis Activity Score (BVAS), the variation rate of peak expiratory flow (PEF), the percentage of PEF to predicted value of PEF (PEFpred%), the percentage of forced expiratory volume in first second (FEV1) to predicted value of FEV1 (FEV1pred%), the dosage of oral corticosteroid (OCS) and other clinical data [M(Q1, Q3)] were collected before and after treatment, to observe the efficacy and adverse reactions of omalizumab. Results: There were 22 subjects recruited in this study. The median age was 42 (22-70) years. Eleven of the patients were males. After treated with omalizumab for 4 months, there were 68.2%(15/21) of patients who responded to the treatment. In the response group (n=15), the patients' ACT score increased from 19.0 (16.5, 21.0) to 23.0 (21.5, 24.0) (P=0.001). The frequency of AE decreased from 0.7 (0.3, 1.0) to 0 (0, 0.7) per four mouths (P<0.001). The BVAS decreased from 4.0 (2.0, 6.0) to 2.0 (2.0, 4.0) (P=0.007). The variation rate of PEF decreased from 18.8% (14.0%, 27.7%) to 9.2% (6.8%, 11.9%) (P=0.007). The PEFpred% increased from 80.8% (73.5%, 90.7%) to 100.5% (79.4%, 114.0%) (P=0.005). The maintenance dosage of OCS reduced from 15.0 (10.0, 20.0) mg/d to 8.8 (5.0, 10.0) mg/d (P=0.005). The level of baseline eosinophil in peripheral blood of patients in non-response group was higher than that in response group [11.4% (9.2%, 22.6%) vs 3.4% (1.1%, 6.5%), P<0.05]. A total of 190 injections were performed in 22 patients, and only 4 patients (2.1%) had adverse reactions after a single injection of omalizumab, such as dizziness, swelling of injection site and pruritus. The adverse reactions were tolerable. Conclusions: Omalizumab has certain curative effect on EGPA, can reduce asthmatic symptoms and OCS maintenance dosage, and has a good safety profile. The rate of response to the treatment is higher in patients with mild eosinophilic inflammation.
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Affiliation(s)
- C X Ou
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - P H Wu
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J X Xie
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - X X Zhang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J J Ma
- Department of Pediatric Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China
| | - Z A Deng
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - X J Yang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Y Li
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - D Yuan
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - L N Xue
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - C Dong
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Z N Deng
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Q L Zhang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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20
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Kalsi P, Hejrati N, Charalampidis A, Wu PH, Schneider M, Wilson JRF, Gao AF, Massicotte EM, Fehlings MG. Spinal arachnoid cysts: A case series & systematic review of the literature. Brain Spine 2022; 2:100904. [PMID: 36248116 PMCID: PMC9560677 DOI: 10.1016/j.bas.2022.100904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/10/2022] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Spinal arachnoid cysts (SACs) are rare lesions with challenging and controversial management. RESEARCH QUESTION We analyzed our experiences from a case series and provide a systematic review to determine 1) Demographic and clinical features of SACs, 2) Optimal imaging for diagnosis and operative planning, 3) Optimal management of SACs, and 4) Clinical outcomes following surgery. MATERIALS AND METHODS A single-institution, ambispective analysis of patients with symptomatic SACs surgically managed between May 2005 and May 2019 was performed. Data were collected as per local ethics committee stipulations. A systematic review of SACs in adults was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and a preapproved protocol. RESULTS Our series consisted of 11 patients, M:F 8:3, mean age 47.8 years (range 18-73 years). Mean follow-up was 19 months (range 5-36 months). SACs were excised or marsupialised (7), fenestrated (3) or partially excised (1). Eight patients had expansile duroplasty, 3 primary dural closure. One patient had a cystoperitoneal shunt. All patients were AIS D preoperatively; 4 remained unchanged and 7 improved to AIS E at follow-up. Our systematic search retrieved 725 citations. Fourteen case series met the inclusion criteria. There was no evidence to support superiority of one surgical strategy over another. Surgery for symptomatic patients resulted in positive clinical outcomes. DISCUSSION AND CONCLUSIONS Symptomatic SACs require surgical intervention. Limited evidence suggests that decompressing the cord, breakdown of arachnoid adhesions, and establishing CSF flow by consideration of expansile duroplasty are important for positive outcomes.
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Affiliation(s)
- Pratipal Kalsi
- Division of Neurosurgery, Krembil Neuroscience Centre, University Health Network, Toronto, Ontario, Canada
- Spine Program, University of Toronto, Toronto, Ontario, Canada
| | - Nader Hejrati
- Division of Neurosurgery, Krembil Neuroscience Centre, University Health Network, Toronto, Ontario, Canada
- Spine Program, University of Toronto, Toronto, Ontario, Canada
- Division of Genetics and Development, Krembil Brain Institute, University Health Network, Toronto, Ontario, Canada
| | - Anastasios Charalampidis
- Division of Neurosurgery, Krembil Neuroscience Centre, University Health Network, Toronto, Ontario, Canada
- Spine Program, University of Toronto, Toronto, Ontario, Canada
| | - Pang Hung Wu
- Division of Neurosurgery, Krembil Neuroscience Centre, University Health Network, Toronto, Ontario, Canada
- Spine Program, University of Toronto, Toronto, Ontario, Canada
| | - Michel Schneider
- Division of Neurosurgery, Krembil Neuroscience Centre, University Health Network, Toronto, Ontario, Canada
- Spine Program, University of Toronto, Toronto, Ontario, Canada
| | - Jamie RF. Wilson
- Division of Neurosurgery, Krembil Neuroscience Centre, University Health Network, Toronto, Ontario, Canada
- Spine Program, University of Toronto, Toronto, Ontario, Canada
| | - Andrew F. Gao
- Laboratory Medicine Program, University Health Network, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Ontario, Canada
| | - Eric M. Massicotte
- Division of Neurosurgery, Krembil Neuroscience Centre, University Health Network, Toronto, Ontario, Canada
- Spine Program, University of Toronto, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Michael G. Fehlings
- Division of Neurosurgery, Krembil Neuroscience Centre, University Health Network, Toronto, Ontario, Canada
- Spine Program, University of Toronto, Toronto, Ontario, Canada
- Division of Genetics and Development, Krembil Brain Institute, University Health Network, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
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21
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Kim HS, Wu PH, Kim JY, Lee YJ, Kim DH, Lee JH, Jeon JB, Jang IT. Comparative Clinical and Radiographic Cohort Study: Uniportal Thoracic Endoscopic Laminotomy With Bilateral Decompression by Using the 1-Block Resection Technique and Thoracic Open Laminotomy With Bilateral Decompression for Thoracic Ossified Ligamentum Flavum. Oper Neurosurg (Hagerstown) 2022; 22:391-399. [PMID: 35383681 DOI: 10.1227/ons.0000000000000145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 11/14/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Symptomatic thoracic myelopathy secondary to thoracic ossified ligamentum flavum (OLF) often requires decompression spinal surgery. OBJECTIVE To compare clinical and radiological outcomes in uniportal endoscopic vs open thoracic decompression for thoracic OLF. METHODS Retrospective evaluation of patients who underwent uniportal thoracic endoscopic unilateral laminotomy with bilateral decompression (TE-ULBD) by using the one-block resection technique compared with thoracic open laminotomy (TOL) with bilateral decompression. Radiological outcomes in MRI scan and clinical charts were evaluated. RESULTS Thirty-five levels of TE-ULBD were compared with 24 levels of TOL. The overall complication rate of TOL was 15% while TE-ULBD was 6.5%. Both TOL and TE-ULBD cohort had significantly improved their visual analog scale (VAS), Oswestry Disability Index, and Japanese Orthopaedic Association (JOA) myelopathy score after operation. Comparative analysis of TE-ULBD performed statistically and significantly better than TOL in improvement of final VAS and JOA scores. The mean difference ± standard deviation of VAS and JOA improvement in final follow-up when compared with preoperative state of TE-ULBD and TOL was 0.717 ± 0.131 and 1.03 ± 0.2, respectively, P < .05. The mean Hirabayashi recovery rates were 94.5% (TE-ULBD) and 56.8% (TOL). There was no statistical difference in change in preoperative and final Oswestry Disability Index and MRI volume at upper endplate, middisk, and lower endplate canal cross-sectional area. CONCLUSION Uniportal TE-ULBD achieved significantly improved pain and neurological recovery with sufficient spinal canal decompression, as compared with thoracic open laminectomy for patients with myelopathy secondary to OLF in our cohort.
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Affiliation(s)
- Hyeun Sung Kim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Pang Hung Wu
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea.,Orthopaedic Surgery, National University Health System, JurongHealth Campus, Singapore, Singapore
| | - Ji-Yeon Kim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Yeon Jin Lee
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Dae Hwan Kim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Jun Hyung Lee
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Jun Bok Jeon
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Il-Tae Jang
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea
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22
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Charalampidis A, Canizares M, Kalsi PS, Hung Wu P, Johnson M, Soroceanu A, Nataraj A, Glennie A, Rasoulinejad P, Attabib N, Hall H, Fisher C, Thomas K, Rampersaud YR. Differentiation of pain-related functional limitations in surgical patients with lumbar spinal stenosis (LSS) using the Oswestry Disability Index: a Canadian Spine Outcomes and Research Network (CSORN) study. Spine J 2022; 22:578-586. [PMID: 34699999 DOI: 10.1016/j.spinee.2021.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/08/2021] [Accepted: 10/12/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT The Oswestry Disability Index (ODI) is the most commonly used outcome measure of functional outcome in spine surgery. The ability of the ODI to differentiate pain related functional limitation specifically related to degenerative lumbar spinal stenosis (LSS) is unclear. PURPOSE The purpose of this study was to determine the ability of the functional subsections of the ODI to differentiate the specific patient limitation(s) from symptomatic LSS and the functional impact of surgery. STUDY DESIGN Analysis of prospectively collected data from the Canadian Spine Outcomes and Research Network (CSORN). PATIENT SAMPLE A total of 1,497 lumbar spinal stenosis patients with a dominant complaint of neurogenic claudication, radiculopathy or back pain were identified in the CSORN registry. OUTCOME MEASURES The ODI questionnaire version 2.0 was assessed as an outcome measure. METHODS The difference at baseline and the pre-to-post (1-year) surgical change of the ODI individual questions was assessed. Analysis of variance, two-tailed paired sample Student t test were used for statistical analysis. Cohen d was used as an index of effect size, defined as "large" when d ≥0.8. RESULTS The mean age at surgery was 65 (±11) years and (50.8%) of the patients were female. Preoperatively, highest functional limitations were noted for standing, lifting, walking, pain intensity and social life (mean 3.2, 2.9, 2.5, 2.9, 2.5 respectively). At 1-year follow-up, overall there was a significant improvement in all individual questions and the overall ODI (all p<.001), with similar patterns seen for each dominant complaint. The greatest effect of surgery was noted in the walking, social life and standing domains (all d≥0.81), while personal care, sitting and lifting showed the least improvement (all d≤0.51). In subgroup analyses, the overall ODI baseline scores and subsection limitations were statistically significantly higher in females, those without degenerative spondylolisthesis and those undergoing fusion, although these differences were not considered clinically significant. Preoperative differentiation of LSS specific functional limitation and postoperative changes in all subgroups was similar to the overall LSS cohort. CONCLUSIONS The results of this study support the ability of the ODI to differentiate the self-reported pain related functional effects of neurogenic claudication, radiculopathy or back pain from LSS and changes associated with surgical intervention. Disaggregated use of the ODI could be a simple tool to aid in preoperative education regarding specific areas of pain related dysfunction and potential for improvement with LSS surgery.
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Affiliation(s)
- Anastasios Charalampidis
- Department of Clinical Sciences, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden; Department of Reconstructive Orthopaedics, Karolinska University Hospital, Stockholm, Sweden
| | - Mayilee Canizares
- The Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Ontario
| | - Pratipal S Kalsi
- Imperial College Healthcare, NHS Trust Charing Cross Hospital, W6 8RF, London, United Kingdom
| | - Pang Hung Wu
- National University Health Systems, Juronghealth Campus, Singapore
| | - Michael Johnson
- Winnipeg Spine Program Health Sciences Centre, University of Manitoba, Winnipeg, MB, Canada
| | - Alex Soroceanu
- University of Calgary, Foothills Medical Centre, Calgary, AB, Canada
| | - Andrew Nataraj
- Division of Neurosurgery, Department of Surgery, University of Alberta Hospital, Edmonton, AB, Canada
| | - Andrew Glennie
- Department of Surgery, Dalhousie University, Halifax, NS, Canada
| | - Parham Rasoulinejad
- Division of Orthopaedics, Department of Surgery, Western University /London Health Sciences Centre; Lawson Health Research Institute /London Health Sciences Centre, London, ON, Canada
| | - Najmedden Attabib
- Canada East Spine Centre, Division of Neurosurgery, Zone 2, Horizon Health Network, Saint John, NB, Canada
| | | | - Charles Fisher
- Combined Neurosurgical & Orthopaedic Spine Program, Vancouver General Hospital and the University of British Columbia, Vancouver, BC, Canada
| | - Kenneth Thomas
- University of Calgary, Foothills Medical Centre, Calgary, AB, Canada
| | - Yoga Raja Rampersaud
- The Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Ontario; J. Bernard Gosevitz Chair in Arthritis Resear ch at UHN, Department of Orthopaedic Surgery, Toronto Western Hospital, Schroeder Arthritis Institute, University Health Network (UHN), Toronto, ON, Canada; Professor of Surgery, University of Toronto, Toronto, ON, Canada.
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23
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Kim HS, Wu PH, Sairyo K, Jang IT. A Narrative Review of Uniportal Endoscopic Lumbar Interbody Fusion: Comparison of Uniportal Facet-Preserving Trans-Kambin Endoscopic Fusion and Uniportal Facet-Sacrificing Posterolateral Transforaminal Lumbar Interbody Fusion. Int J Spine Surg 2021; 15:S72-S83. [PMID: 34974422 PMCID: PMC9421270 DOI: 10.14444/8166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Uniportal endoscopic lumbar interbody fusion aims to achieve the bony union of 2 lumbar segments through cage insertion using full spinal endoscopy. Endoscopic fusion can adjust foraminal height and disc height, improve alignment, and minimize collateral soft tissue damage during the insertion of an interbody cage. The surgery is performed under constant irrigation with normal saline and an optical endoscopic lens close to the targeted disc segment. Two main subtypes of uniportal endoscopic fusion are currently described in the literature. We broadly classify them into facet-preserving and facet-sacrificing endoscopic lumbar interbody fusions. We have termed them uniportal facet-preserving trans-Kambin endoscopic fusion and uniportal facet-sacrificing posterolateral transforaminal lumbar interbody fusion. In this article, we review the current literature and discuss the history, indications, contraindications, technical differences, clinical outcomes, and complications of uniportal endoscopic interbody fusion surgery.
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Affiliation(s)
| | - Pang Hung Wu
- Nanoori Gangnam Hospital, Seoul, South Korea
- National University Health Systems, Singapore, Singapore
| | - Koichi Sairyo
- Department of Orthopedics, Tokushima University Graduate School, Tokushima, Japan
| | - Il-Tae Jang
- Nanoori Gangnam Hospital, Seoul, South Korea
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24
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Hwuang E, Wu PH, Rodriguez-Soto A, Langham M, Wehrli FW, Vidorreta M, Moon B, Kochar K, Parameshwaran S, Koelper N, Tisdall MD, Detre JA, Witschey W, Schwartz N. Cross-modality and in-vivo validation of 4D flow MRI evaluation of uterine artery blood flow in human pregnancy. Ultrasound Obstet Gynecol 2021; 58:722-731. [PMID: 32898295 PMCID: PMC8072518 DOI: 10.1002/uog.23112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 08/06/2020] [Accepted: 08/23/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES Clinical assessment of uterine artery (UtA) hemodynamics is currently limited to Doppler ultrasound (US) velocimetry. We have demonstrated previously the feasibility of applying four-dimensional (4D) flow magnetic resonance imaging (MRI) to evaluate UtA hemodynamics during pregnancy, allowing flow quantification of the entire course of the vessel. In this study, we sought to further validate the physiological relevance of 4D flow MRI measurement of UtA blood flow by exploring its association with pregnancy outcome relative to US-based metrics. METHODS Recruited into this prospective, cross-sectional study were 87 women with a singleton pregnancy who underwent 4D flow MRI between May 2016 and April 2019 to measure the UtA pulsatility index (MRI-PI) and blood flow rate (MRI-flow, in mL/min). UtA-PI was also measured using US (US-PI). The primary outcome was a composite (COMP) of pre-eclampsia (PE) and/or small-for-gestational-age (SGA) neonate, and secondary outcomes were PE and SGA neonate individually. We assessed the ability of MRI-flow, MRI-PI and US-PI to distinguish between outcomes, and evaluated whether MRI-flow changed as gestation progressed. RESULTS Following 4D flow postprocessing and exclusions from the analysis, 74 women had 4D flow MRI data analyzed for both UtAs. Of these, 18 developed a COMP outcome: three developed PE only, 11 had a SGA neonate only and four had both. A comparison of the COMP group vs the no-COMP group found no differences in maternal age, body mass index, nulliparity, gravidity or race. For 66 of the 74 subjects, US data were also available. In these subjects, both median MRI-PI (0.95 vs 0.70; P < 0.01) and median US-PI (0.95 vs 0.73; P < 0.01) were significantly increased in subjects in the COMP group compared with those in the no-COMP group. The UtA blood-flow rate, as measured by MRI, did not increase significantly from the second to the third trimester (median flow (interquartile range (IQR)), 543 (419-698) vs 575 (440-746) mL/min; P = 0.77), but it was significantly lower overall in the COMP compared with the no-COMP group (median flow (IQR), 486 (366-598) vs 624 (457-749) mL/min; P = 0.04). The areas under the receiver-operating-characteristics curves for MRI-flow, MRI-PI and US-PI in predicting COMP were not significantly different (0.694, 0.737 and 0.731, respectively; P = 0.87). CONCLUSIONS 4D flow MRI can yield physiological measures of UtA blood-flow rate and PI that are associated with adverse pregnancy outcome. This may open up new avenues in the future to expand the potential of this technique as a robust tool with which to evaluate UtA hemodynamics in pregnancy. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- E Hwuang
- Department of Biomedical Engineering, University of Pennsylvania, Philadelphia, PA, USA
| | - P H Wu
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - A Rodriguez-Soto
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - M Langham
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - F W Wehrli
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | | | - B Moon
- Department of Biomedical Engineering, University of Pennsylvania, Philadelphia, PA, USA
| | - K Kochar
- Drexel School of Medicine, Philadelphia, PA, USA
| | - S Parameshwaran
- Maternal and Child Health Research Center, University of Pennsylvania, Philadelphia, PA, USA
| | - N Koelper
- Center for Research on Reproduction and Women's Health, University of Pennsylvania, Philadelphia, PA, USA
| | - M D Tisdall
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - J A Detre
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - W Witschey
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - N Schwartz
- Maternal and Child Health Research Center, University of Pennsylvania, Philadelphia, PA, USA
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25
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Wu PH, Sebastian M, Kim HS, Heng GTY. How I do it? Uniportal full endoscopic pseudoarthrosis release of left L5/S1 Bertolotti's syndrome under intraoperative computer tomographic guidance in an ambulatory setting. Acta Neurochir (Wien) 2021; 163:2789-2795. [PMID: 34420129 DOI: 10.1007/s00701-021-04975-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 08/15/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND There is limited literature on technique full endoscopic pseudoarthrosis release of Bertolotti syndrome. METHODS Uniportal full endoscopic pseudoarthrosis release technique applies for patients presenting with symptomatic Bertolotti's syndrome. Full-thickness endoscopic drilling is carried out from most ventrolateral margin of pseudoarthrosis articulating with the highest part of sacral ala (PH) point to dorsal medioinferior margin of pseudoarthrosis adjacent to superior articular process (MS) point. Complete pseudoarthrosis release was confirmed with an intraoperative 3D imaging system. CONCLUSION The uniportal full endoscopic pseudoarthrosis release is a good alternative to open surgery to release pseudoarthrosis in L5/S1 Bertolotti's syndrome in an ambulatory setting.
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Affiliation(s)
- Pang Hung Wu
- Orthopaedic Surgery, JurongHealth Campus, National University Health System, 1 Jurong East Street 21, Singapore, 609606, Singapore.
| | - Matthew Sebastian
- Orthopaedic Surgery, JurongHealth Campus, National University Health System, 1 Jurong East Street 21, Singapore, 609606, Singapore
| | - Hyeun Sung Kim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul, South Korea
| | - Gamaliel Tan Yu Heng
- Orthopaedic Surgery, JurongHealth Campus, National University Health System, 1 Jurong East Street 21, Singapore, 609606, Singapore
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Kim JY, Kim HS, Wu PH, Jang IT. Alleviating Paravertebral Muscle Spasm after Radiofrequency Ablation Treatment of Hypersensitive Basivertebral and Sinuvertebral Nerves for Chronic Discogenic Back Pain. Pain Physician 2021; 24:E883-E892. [PMID: 34554709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
BACKGROUND Paraspinal muscle spasm caused by pain from a lumbar degenerative disc is frequently investigated in patients with low back pain. Radiofrequency ablation (RFA) surgery could alleviate paraspinal muscle spasms. OBJECTIVES We performed RFA surgery on the high-intensity zone (HIZ) and hypersensitive sinuvertebral and basivertebral nerves to evaluate its outcome. The paravertebral muscle cross-sectional area (CSA) was measured on magnetic resonance imaging (MRI) before and after surgery to evaluate the effect of RFA surgery on the paravertebral muscle. STUDY DESIGN Prospective cohort study. SETTING A single spine surgery center. METHODS A comparative study was performed on 2 different uniportal spinal endoscopic surgery groups; 23 patients who underwent RFA surgery for chronic discogenic back pain and 45 patients who underwent posterior decompression surgery for lumbar spinal stenosis with 12 months of follow-up. Paravertebral muscle cross-sectional area, Schiza grade, Modic type, and HIZ size were measured on pre- and post-operative MRI. An endoscopic video review was performed to evaluate the presence of intraoperative twitching and grade the degree of epidural neovascularization and adhesion. Visual analog scale VAS, modified Oswestry Disability Index, ODI and MacNab's criteria were evaluated for outcome measures. RESULTS Intraoperative endoscopic video evaluation showed neovascularization and adhesion adjacent to the disc and pedicle. In the RFA surgery group, there were 7 patients (30.43%) with grade 2 and 16 (69.57%) with grade 3 neovascularization; intraoperative twitching was observed in 19 out of 23 patients (82.61%). After performing an RFA on the sinuvertebral and basivertebral nerves for the treatment of discogenic back pain, the results showed significant improvement in pain and disability scores. The mean CSA of the paraspinal muscle in the RFA surgery group was significantly increased after surgery at the L4-L5 and L5-S1 levels (L4-L5: 3901 ± 1096.7 mm² to 4167 ± 1052.1 mm², P = 0.000; L5-S1: 3059 ± 968.5 mm² to 3323 ± 1046.2 mm², P = 0.000) compared to preoperative CSA. LIMITATIONS This study was limited by its small sample size. CONCLUSION Hypersensitive sinuvertebral and basivertebral nerves are strongly associated with epidural neovascularization with adhesion and the pathological pain pathway in degenerative disc disease. Epidural neovascularization with adhesion reflects aberrant neurological connections, which are associated with reflex inhibitory mechanisms of the multifidus muscle, which induces spasm. RFA treatment of the region of epidural neovascularization with adhesion effectively treated chronic discogenic back pain and could induce paraspinal muscle spasm release.
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Affiliation(s)
- Ji Yeon Kim
- Nanoori Gangnam Hospital, Seoul, Spine Surgery, Korea, Rep. of South
| | - Hyeun Sung Kim
- Department of Neurosurgery, Nanoori Suwon Hospital, Suwon, Republic of Korea
| | - Pang Hung Wu
- National University Health System, JurongHealth Campus, Orthopaedic Surgery, Singapore
| | - Il-Tae Jang
- Department of Neurosurgery, Nanoori Chungdam Seoul Hospital, Seoul, Republic of Korea
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Wu PH, Dong C, Xie JX, Zhang XX, Liu J, Ouyang M, Ma JJ, Huang WH, Ou CX, Li J, Zhang QL. [Preliminary clinical observation of omalizumab therapy for moderate to severe asthma]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:611-618. [PMID: 34256447 DOI: 10.3760/cma.j.cn112147-20210315-00173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the effectiveness, safety and management of omalizumab therapy for moderate to severe asthma in real-world clinical practice in China. Methods: This retrospective analysis involved 79 patients with moderate to severe asthma who received omalizumab therapy for at least 4 months in the First Affiliated Hospital of Guangzhou Medical University from March 2018 to April 2020. All participants were between 14 to 76 years old(median 50 years),including 30 males and 49 females. Data regarding the patients' clinical manifestations, eosinophil count, fractional exhaled nitric oxide (FeNO), lung function, oral corticosteroid dosage, and adverse reactions were collected before and after treatment. Paired t-test or non-parametric paired Wilcoxon analysis was used for pairwise comparison, Mann Whitney analysis for inter-group comparison, and Chi square test or Fisher test for inter-group comparison of count data. Results: The following changes were noted after 4 months of omalizumab thearpy. The patients' Asthma Control Test (ACT) scores increased from 17.0 (13.0-19.0) to 20.0 (18.0-24.0) points (P<0.001). The frequency of acute exacerbations(AE) decreased from 1.0 (0-1.0) to 0 (0-1.0) episodes every 4 months (P<0.001). The variation rate of the peak expiratory flow (PEF) decreased from 16.5 (13.8-27.3)% to 10.4 (6.0-16.2)% (P<0.001). The percent predicted value of PEF (PEFpred%) increased from 71.7 (51.4-91.6)% to 87.5 (65.2-105.5)% (P<0.001). The percent predicted value of the forced expiratory volume in 1 second(FEV1%pred) increased from 73.6 (53.9-90.8)% to 80.6 (68.7-91.8)% (P=0.007). The maintenance dose of oral corticosteroids (OCS) decreased from 12.0 (10.0-20.0) to 5.0 (0-17.5) mg/day (P=0.001). After 4 months of treatment, the response rate of the 79 patients with asthma was 74.7%. The response rate of patients with allergic asthma (77.3%) was higher than that of patients with non-allergic asthma (25.0%) (P=0.019). Among 5 patients who completed 1 year of treatment, the ACT score, frequency of AE, PEFpred%, variation rate of PEF and OCS maintenance dose were still improved after 1 year of treatment. Adverse reactions occurred in 3 patients (3.8%), for a total of 3 (0.6%) times. Stratified analysis showed that after 4 months of treatment, the improvement in the ACT score and the decrease in the PEF variation rate among patients who reached the recommended treatment dose (full dose) [3.0 (1.0-8.0) points, 6.5 (3.5-15.8) %] were significantly higher than those among patients who did not reach the recommended treatment dose (insufficient dose) [1.0 (-0.3-3.0) points, 2.9 (1.5-5.0) %] (P<0.05). Additionally, the treatment response rate in patients with a sufficient dose (80.0%) was higher than that in patients with an insufficient dose (50.0%) (P=0.019).The main factors associated with stopping treatment within 1 year despite a response to omalizumab was economic burden (70.3%), followed by satisfactory improvement by self-evaluation (21.9%) and less improvement in symptoms than expected (7.8%). Conclusion: Omalizumab was an effective treatment for moderate to severe allergic asthma with few adverse effects. The response rate was higher when the recommended injection dose was achieved. Financial difficulty was the main reason for stopping treatment within 1 year despite a good therapeutic response.
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Affiliation(s)
- P H Wu
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - C Dong
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J X Xie
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - X X Zhang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J Liu
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - M Ouyang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J J Ma
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - W H Huang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - C X Ou
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J Li
- Department of Allergy, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Q L Zhang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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Kim HS, Raorane HD, Choi I, Wu PH, Yang KH, Yi YJ, Jang IT. Full-Endoscopic Lumbar Decompression with Minimal Nerve Root Retraction for Impending Neurologic Deficit in Degenerative Lumbar Spine Diseases. J Neurol Surg A Cent Eur Neurosurg 2021; 83:135-142. [PMID: 34237776 DOI: 10.1055/s-0041-1725955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The aim of this retrospective case study was to analyze the outcomes of minimal nerve root retraction in patients with impending neurologic deficit in degenerative lumbar spine disease using the full-endoscopic spine surgery. MATERIALS AND METHODS Thirty-seven consecutive patients with impending neurologic deficit underwent endoscopic spine surgery through either the transforaminal or the interlaminar approach. Their clinical outcomes were evaluated with visual analog scale (VAS) leg pain score, Oswestry Disability Index (ODI), and MacNab's criteria. The outcome of motor deficitis was evaluated with the Medical Research Council (MRC) grade. Completeness of decompression was documented with a postoperative magnetic resonance imaging (MRI) and computed tomography (CT) scan. RESULTS A total of 40 lumbar levels of 37 patients were operated, VAS score of the leg improved from 7.7 ± 1 to 1.9 ± 0.6 (p < 0.0001). ODI score improved from 74.7 ± 6.5 to 25.4 ± 3.49 (p < 0.0001). Motor weakness improved significantly immediately after surgery. The mean MRC grade increased to 1.97, 3.65, 4.41, and 4.76 preoperatively, at 1 week, at 3 months, and at the final follow-up, respectively, and all the patients with foot drop and cauda equina syndrome symptom recovered completely. One patient with great toe drop recovered partially to MRC grade 3. Mean follow-up of the study was 13.3 ± 6.1 months. According to MacNab's criteria, 30 patients (80.1%) had good and 7 patients (18.9%) had excellent results. Three patients required revision surgery. CONCLUSIONS Minimal nerve root retraction during full-endoscopic spine surgery is safe and effective for treatment of the impending neurologic deficit. We could achieve a thorough decompression of the affected nerve root with acceptable clinical outcome and minimal postoperative morbidity.
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Affiliation(s)
- Hyeun Sung Kim
- Department of Neurosurgery, Nanoori Hospital Gangnam-gu, Seoul, Republic of Korea
| | | | - Il Choi
- Department of Neurosurgery, Nanoori Hospital Gangnam-gu, Seoul, Republic of Korea
| | - Pang Hung Wu
- Department of Neurosurgery, Nanoori Hospital Gangnam-gu, Seoul, Republic of Korea
| | - Kyung Hoon Yang
- Department of Neurosurgery, Nanoori Hospital Gangnam-gu, Seoul, Republic of Korea
| | - Yeon Jin Yi
- Department of Neurosurgery, Nanoori Hospital Gangnam-gu, Seoul, Republic of Korea
| | - Il Tae Jang
- Department of Neurosurgery, Nanoori Hospital Gangnam-gu, Seoul, Republic of Korea
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Wu PH, Kim HS, Kim JY, Lee YJ, Kim DH, Lee JH, Jeon JB, Jang IT. Uniportal thoracic endoscopic decompression using one block resection technique for thoracic ossified ligamentum flavum technical report. Interdisciplinary Neurosurgery 2021. [DOI: 10.1016/j.inat.2020.100963] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Abstract
After the completion of an endoscopic spinal surgery fellowship, the next challenge for the newly minted consultant is to set up a viable and sustainable endoscopic practice. A successful practice of endoscopic spine surgery is dependent on several factors, such as anesthetic support; surgical expertise; support for provision and maintenance of endoscopic equipment; cost of equipment; administrative and nursing support; postoperative care services to optimize patients' outcome and satisfaction; patients' ideas, concerns, and expectations, as well as continuing medical education. In this article, a perspective is given on the early career challenges that a fellowship-trained endoscopic surgeon may encounter in the period leading to first successful endoscopic spinal surgery.
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Affiliation(s)
- Pang Hung Wu
- National University Health System, JurongHealth Campus, Orthopaedic Surgery, Singapore.
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Kim HS, Wu PH, Lee YJ, Kim DH, Kim JY, Lee JH, Jeon JB, Jang IT. Reprint of: Safe Route for Cervical Approach: Partial Pediculotomy, Partial Vertebrotomy Approach for Posterior Endoscopic Cervical Foraminotomy and Discectomy. World Neurosurg 2020; 145:621-630. [PMID: 33212281 DOI: 10.1016/j.wneu.2020.10.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Cervical radiculopathy is a common cervical spine condition. However, a paucity of data is available on the effect of partial pediculotomy and partial vertebrotomy (PPPV) for posterior endoscopic cervical foraminotomy (PECF) to treat cervical radiculopathy. We investigated the radiological and clinical outcomes of this approach. METHODS We performed a retrospective evaluation of 30 patients with cervical radiculopathy who had undergone PPPV PECF. Pre- and postoperative radiographs were performed to evaluate for stability, and computed tomography (CT) was used to evaluate the foraminal dimensions and area in the sagittal view. Three-dimensional reconstruction of the area of decompression was also performed. The clinical outcomes were evaluated using the visual analog scale, Oswestry disability index, and the MacNab criteria. RESULTS No complications or recurrence developed in our PPPV PECF cohort during the study period. At the preoperative, 1-week postoperative, 3-month postoperative, and final follow-up examinations, the mean visual analog scale scores and mean Oswestry disability index showed significant improvement (score, 7.6, 3.0, 2.1, and 1.7, respectively; P < 0.05; and score, 73.9, 28.1, 23.3, and 21.5, respectively; P < 0.05). All the patients scored good to excellent using the MacNab criteria. The radiological findings showed that PPPV PECF resulted in a significant increase in decompression in the foramen area for all CT-measured parameters compared with the mean preoperative values: 1) the sagittal area increased 60.1 ± 23.1 mm2; 2) the craniocaudal length increased 4.0 ± 1.54 mm; and 3) the ventrodorsal length increased 4.0 ± 1.97 mm; Also, the 3-dimensional CT scan reconstruction decompression area had increased 996 ± 266 mm2 (P < 0.05). CONCLUSION PPPV PECF is a safe route for decompression of the cervical spine with good clinical and radiological outcomes.
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Affiliation(s)
- Hyeun Sung Kim
- Spine Surgery Center, Nanoori Gangnam Hospital, Seoul, Republic of Korea.
| | - Pang Hung Wu
- Spine Surgery Center, Nanoori Gangnam Hospital, Seoul, Republic of Korea; Department of Orthopaedic Surgery, National University Health System, Jurong Health Campus, Singapore
| | - Yeon Jin Lee
- Spine Surgery Center, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Dae Hwan Kim
- Spine Surgery Center, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Ji Yeon Kim
- Spine Surgery Center, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Jun Hyung Lee
- Spine Surgery Center, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Jun Bok Jeon
- Spine Surgery Center, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Il-Tae Jang
- Spine Surgery Center, Nanoori Gangnam Hospital, Seoul, Republic of Korea
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Kim HS, Wu PH, Raorane HD, Jang IT. Generation Change of Practice in Spinal Surgery: Can Endoscopic Spine Surgery Expand its Indications to Fill in the Role of Conventional Open Spine Surgery in Most of Degenerative Spinal Diseases and Disc Herniations: A Study of 616 Spinal Cases 3 Years. Neurol India 2020; 68:1157-1165. [PMID: 33109867 DOI: 10.4103/0028-3886.299145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background A paucity of literature on the effect of spinal endoscopic surgery replacing a large percentage of open and microscopic minimally invasive surgery on outcomes in patients. Objective Evaluation of the effect of endoscopic practice expansion in degenerative spinal conditions and disc herniations on patients' outcome as we shifted from first-generation endoscopic discectomy to second-generation decompression and finally third generation of endoscopic spinal fusion practice. Subjects and Methods Retrospective cohort study on surgical treatment of degenerative spinal conditions for 616 spinal cases. Basic demographics, preoperative, postoperative 1 week, 6 months, and final follow-up of patients' clinical outcomes in terms of pain score, Oswestry disability index, and MacNab's criteria for pain score were evaluated. Results 75%, 91%, and 97% of the surgeries with complications rate of 8.2%, 9%, and 3.4% were found in Generation 1, 2, and 3 of endoscopic surgery, respectively. Compared to preoperative scores, each generation VAS and ODI scores all statistically significantly improved. In the final follow-up, compared to preoperative state, the mean VAS improvement was 4.75 ± 1.7, 5.49 ± 1.66, and 5.37 ± 1.70, mean ODI improvement was 45.99 ± 11.8, 48.93 ± 11.2, and 48.43 ± 11.41, and MacNab's criteria showed a trend of upward improvement of 87.3%, 96.0%, and 98.7% cases, which showed good-to-excellent outcome, in Generation 1, 2, and 3, respectively. Conclusions Generation change of increasing percentage of endoscopic surgeries and expansion of endoscopic spinal indications over open surgeries in degenerative spinal conditions and disc herniations are possible as a surgeon gets more experience with endoscopic spine surgery producing a good clinical outcome.
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Affiliation(s)
- Hyeun Sung Kim
- Department of Neurosurgery, Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea
| | - Pang Hung Wu
- Department of Neurosurgery, Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea; Orthopaedic Surgery, National University Health System, Jurong Health Campus, Singapore
| | | | - Il-Tae Jang
- Department of Neurosurgery, Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of Korea
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Wu PH, Kim HS, Lee YJ, Kim DH, Lee JH, Yang KH, Raorane HD, Jang IT. Posterior endoscopic cervical foramiotomy and discectomy: clinical and radiological computer tomography evaluation on the bony effect of decompression with 2 years follow-up. Eur Spine J 2020; 30:534-546. [PMID: 33078265 DOI: 10.1007/s00586-020-06637-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 09/16/2020] [Accepted: 10/10/2020] [Indexed: 12/15/2022]
Abstract
PURPOSE Cervical radiculopathy is a common disabling cervical spine condition. Open anterior and posterior approaches are the conventional surgical treatment approaches with good clinical outcomes. However, the soft tissue damage in these procedures can lead to increase perioperative morbidity. Endoscopic spine surgery provides more soft tissue preservation than conventional approaches. We investigate the radiological and clinical outcomes of posterior endoscopic cervical foraminotomy and discectomy. METHODS A prospective clinical and radiological study with retrospective evaluation were done for 25 patients with 29 levels of cervical radiculopathy who underwent posterior endoscopic cervical discectomy from November 2016 to December 2018. Clinical outcomes of Visual Analogue Scale, Neck Disability Index and MacNab's score were evaluated at pre-operative, post-operative 1 week, 3 months and final follow-up. Preoperative and post-operative final follow-up flexion and extension roentgenogram were evaluated for cervical stability assessment. Pre-operative and post-operative computer tomography cervical spine evaluation of foraminal length in ventro-dorsal, cephalad-caudal dimensions, sagittal foraminal area and using 3D CT reconstruction coronal decompression area were done. RESULTS Twenty-nine levels of cervical radiculopathy underwent posterior endoscopic cervical decompression. The mean follow-up was 29.6 months, and the most common levels affected were C5/6 and C6/7. There was a complication rate of 12% with 2 cases of neurapraxia and one case of recurrent of prolapsed disc. There was no revision surgery in our series. There was significant clinical improvement in Visual Analogue Scale and Neck Disability Index. Prospective comparative study between preoperative and final follow-up mean improvement in VAS score was 5.08 ± 1.75, and NDI was 45.1 ± 13.3. Ninety-two percent of the patients achieved good and excellent results as per MacNab's criteria. Retrospective evaluation of the radiological data showed significant increments of foraminal dimensions: (1) sagittal area increased 21.4 ± 11.2 mm2, (2) CT Cranio Caudal length increased 1.21 ± 1.30 mm and (3) CT ventro-dorsal length increased 2.09 ± 1.35 mm and (4) 3D CT scan reconstruction coronal decompression area increased 536 ± 176 mm2, p < 0.05. CONCLUSION Uniportal posterior endoscopic cervical foraminotomy and discectomy are safe, efficient and precise choreographed set of technique in the treatment of cervical radiculopathy. It significantly improved clinical outcomes and achieved the objective of increasing in the cervical foramen size in our cohort of patients.
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Affiliation(s)
- Pang Hung Wu
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea.,Department of Orthopaedic Surgery, Juronghealth Campus, National University Health System, Singapore, Singapore
| | - Hyeun Sung Kim
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea.
| | - Yeon Jin Lee
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea
| | - Dae Hwan Kim
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea
| | - Jun Hyung Lee
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea
| | - Kyung-Hoon Yang
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea
| | | | - Il-Tae Jang
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea
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Kim HS, Wu PH, Jang IT. Technical note on Uniportal full endoscopic posterolateral approach transforaminal lumbar interbody fusion with reduction for grade 2 spondylolisthesis. Interdisciplinary Neurosurgery 2020. [DOI: 10.1016/j.inat.2020.100712] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Kim HS, Wu PH, Jang IT. Current and Future of Endoscopic Spine Surgery: What are the Common Procedures we Have Now and What Lies Ahead? World Neurosurg 2020; 140:642-653. [PMID: 32797991 DOI: 10.1016/j.wneu.2020.03.111] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 11/18/2022]
Abstract
The aging population around the world leads to increasing incidence of degenerative spinal conditions. There is a need for a minimally invasive technique in treatment for spinal conditions to meet the medical complexity and comorbidities that comes with aging. Principles of endoscopy are similar to minimally invasive surgery, which is to decrease pressure on soft tissue crushing from prolonged retraction, avoid soft tissue stripping and dissection, and bone and ligamentous preservation for optimal decompression without excessive destruction. Endoscopic spine surgery techniques started slowly in development in the 1970s to 2000s, with a rapid phase of development since the turn of the 21st century with endoscopic solutions developing in cervical, thoracic, and lumbar conditions with increasing complexity in nature of operation. Technological enhancement with progressively supportive literature is pushing boundaries of endoscopy from the early days of soft tissue procedure to current fusion procedures, endoscopic spine surgery techniques is covering more areas of spine than ever previously possible with good clinical results. We present a review on the current techniques available and postulated near future development for endoscopic spine surgery.
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Affiliation(s)
- Hyeun Sung Kim
- Department of Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of South Korea.
| | - Pang Hung Wu
- Department of Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of South Korea; Department of Orthopaedic Surgery, National University Health System, Jurong Health Campus, Singapore
| | - Il-Tae Jang
- Department of Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of South Korea
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Kim HS, Wu PH, Jang IT. Development of Endoscopic Spine Surgery for Healthy Life: To Provide Spine Care for Better, for Worse, for Richer, for Poorer, in Sickness and in Health. Neurospine 2020; 17:S3-S8. [PMID: 32746510 PMCID: PMC7410372 DOI: 10.14245/ns.2040188.094] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 05/10/2020] [Indexed: 11/30/2022] Open
Affiliation(s)
| | - Pang Hung Wu
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Korea.,National University Health System, JurongHealth Campus, Orthopaedic Surgery, Singapore
| | - Il-Tae Jang
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Korea
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Kim HS, Wu PH, Jang IT. Lumbar Endoscopic Unilateral Laminotomy for Bilateral Decompression Outside-In Approach: A Proctorship Guideline With 12 Steps of Effectiveness and Safety. Neurospine 2020; 17:S99-S109. [PMID: 32746523 PMCID: PMC7410378 DOI: 10.14245/ns.2040078.039] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/03/2020] [Indexed: 01/16/2023] Open
Abstract
Minimally invasive spinal surgery in particular lumbar endoscopic unilateral laminotomy with bilateral decompression becomes popular as it can be performed with regional anesthesia, soft tissue damages are minimized as endoscopic visualization and instruments can be brought close to operating area bypassing much of the intervening soft tissues for sufficient spinal decompression with ligamentum flavum resection despite less bony resection compared to open surgery. Overall, when well executed, it preserves spinal stability. Outside-in technique of decompression is also known as over the top decompression in minimally invasive literature. It involves maintaining deep layer of ligamentum flavum integrity till satisfactory bony decompression is achieved. Deep layer of ligamentum flavum is removed as final step of decompression. Preservation of the deep layer of ligamentum flavum protects the neural elements, allowing drills and sharp equipment to be used safely to perform bony decompression.In this study, we demonstrate the technical details of outside-in approach lumbar endoscopic unilateral laminotomy with bilateral decompression (LE-ULBD). LE-ULBD Outside-in Technique is an effective and safe procedure in relieving lumbar spinal stenosis with favorable results with a follow-up for more than 1 year.
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Affiliation(s)
| | - Pang Hung Wu
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Korea.,National University Health Systems, Jurong Health Campus, Orthopaedic Surgery, Singapore
| | - Il-Tae Jang
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Korea
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Abstract
In the first phase of development of lumbar endoscopic spine surgery, the focus was on removal of soft disc material through the working corridor of Kambin’s triangle using transforaminal endoscopic lumbar discectomy. With the introduction of the interlaminar approach and increased interest from both industry and surgeons, there has been an exponential development of endoscopic surgical equipment and a corresponding expansion of endoscopic techniques. Endoscopic treatment strategies are applied to conditions ranging from contained prolapsed intervertebral discs to noncontained migrated herniated discs, hard calcified discs, spinal stenosis in the central or lateral recess and the foraminal and extraforaminal region, and other combinations of degenerative conditions requiring decompression or fusion surgery. The further expansion of endoscopic surgical management involving complicated spinal cases and the final quartet of trauma, infections, tumors, and possibly deformities could be the future stage of endoscopic spine surgery development. This article covers the full range of current treatment strategies and presents possible future developments of endoscopic spine surgery for the management of lumbar spinal conditions.
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Affiliation(s)
- Pang Hung Wu
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Korea.,National University Health System, JurongHealth Campus, Orthopaedic Surgery, Singapore
| | | | - Il-Tae Jang
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Korea
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Wu PH, Kim HS, Lee YJ, Kim DH, Lee JH, Jeon JB, Raorane HD, Jang IT. Uniportal Full Endoscopic Posterolateral Transforaminal Lumbar Interbody Fusion with Endoscopic Disc Drilling Preparation Technique for Symptomatic Foraminal Stenosis Secondary to Severe Collapsed Disc Space: A Clinical and Computer Tomographic Study with Technical Note. Brain Sci 2020; 10:brainsci10060373. [PMID: 32549320 PMCID: PMC7348812 DOI: 10.3390/brainsci10060373] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 02/07/2023] Open
Abstract
Background: Severe collapsed disc secondary to degenerative spinal conditions leads to significant foraminal stenosis. We hypothesized that uniportal posterolateral transforaminal lumbar interbody fusion with endoscopic disc drilling technique could be safely applied to the collapsed disc space to improve patients’ pain score, restore disc height, and correct the segmental angular parameters. Methods: We included patients who met the indication criteria for lumbar fusion and underwent uniportal full endoscopic posterolateral transforaminal lumbar interbody fusion with pre-operative Computer Tomography mid disc height of less than or equal to 5 mm and MRI of Grade 3 Foraminal Stenosis. Visual analogue scale and computer tomography pre-operative and post-operative sagittal disc height in the anterior, middle and posterior part of the disc; sagittal focal segmental angle; mid coronal disc height and coronal wedge angles were evaluated. Results: 30 levels of Endo-TLIF were included, with a mean follow up of 12 months. The mean improvement in decreasing pain score was 2.5 ± 1.1, 3.2 ± 0.9 and 4.3 ± 1.0 at 1 week post operation, 3 months post operation and at final follow up, respectively, p < 0.05. There was significant increase in mid sagittal computer tomographic anterior, middle and posterior disc height of 6.99 ± 2.30, 6.28 ± 1.44, 5.12 ± 1.79 mm respectively, p < 0.05. CT mid coronal disc height showed an increase of 7.13 ± 1.90 mm, p < 0.05. There was a significant improvement in the CT coronal wedge angle of 2.35 ± 4.73 and the CT segmental focal sagittal angle of 1.98 ± 4.69, p < 0.05. Conclusion: Application of Uniportal Endoscopic Posterolateral Lumbar Interbody Fusion in patients with severe foraminal stenosis secondary to severe collapsed disc space significantly relieved patients’ pain and restored disc height without early subsidence or exiting nerve root dysesthesia in our cohort of patients.
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Affiliation(s)
- Pang Hung Wu
- Spine Surgery, Nanoori Gangnam Hospital, Seoul 06048, Korea; (P.H.W.); (Y.J.L.); (D.H.K.); (J.H.L.); (J.B.J.); (H.D.R.); (I.-T.J.)
- National University Health System, JurongHealth Campus, Orthopaedic Surgery, Singapore 609606, Singapore
| | - Hyeun Sung Kim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul 06048, Korea; (P.H.W.); (Y.J.L.); (D.H.K.); (J.H.L.); (J.B.J.); (H.D.R.); (I.-T.J.)
- Correspondence:
| | - Yeon Jin Lee
- Spine Surgery, Nanoori Gangnam Hospital, Seoul 06048, Korea; (P.H.W.); (Y.J.L.); (D.H.K.); (J.H.L.); (J.B.J.); (H.D.R.); (I.-T.J.)
| | - Dae Hwan Kim
- Spine Surgery, Nanoori Gangnam Hospital, Seoul 06048, Korea; (P.H.W.); (Y.J.L.); (D.H.K.); (J.H.L.); (J.B.J.); (H.D.R.); (I.-T.J.)
| | - Jun Hyung Lee
- Spine Surgery, Nanoori Gangnam Hospital, Seoul 06048, Korea; (P.H.W.); (Y.J.L.); (D.H.K.); (J.H.L.); (J.B.J.); (H.D.R.); (I.-T.J.)
| | - Jun Bok Jeon
- Spine Surgery, Nanoori Gangnam Hospital, Seoul 06048, Korea; (P.H.W.); (Y.J.L.); (D.H.K.); (J.H.L.); (J.B.J.); (H.D.R.); (I.-T.J.)
| | - Harshavardhan Dilip Raorane
- Spine Surgery, Nanoori Gangnam Hospital, Seoul 06048, Korea; (P.H.W.); (Y.J.L.); (D.H.K.); (J.H.L.); (J.B.J.); (H.D.R.); (I.-T.J.)
| | - Il-Tae Jang
- Spine Surgery, Nanoori Gangnam Hospital, Seoul 06048, Korea; (P.H.W.); (Y.J.L.); (D.H.K.); (J.H.L.); (J.B.J.); (H.D.R.); (I.-T.J.)
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Kim HS, Wu PH, Lee YJ, Kim DH, Jang IT. Technical Considerations of Uniportal Endoscopic Posterolateral Lumbar Interbody Fusion: A Review of Its Early Clinical Results in Application in Adult Degenerative Scoliosis. World Neurosurg 2020; 145:682-692. [PMID: 32531438 DOI: 10.1016/j.wneu.2020.05.239] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/24/2020] [Accepted: 05/25/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Uniportal endoscopic posterolateral lumbar interbody fusion (Endo-TLIF) provides one of the least invasive forms of minimally invasive surgery, allowing large size cages which are commercially available for open and tubular microscopic transforaminal lumbar interbody fusion (TLIF) to be inserted through this approach. We studied the effect of such a technique on a series of patients with low-grade degenerative scoliosis. METHODS Endo-TLIF was applied to patients who had 10°-40° of degenerative adult scoliosis. Pre- and postoperative 1-week, 3-month, and final follow-up clinical status of visual analog scale, Oswestry Disability Index, perioperative complications, and Macnab criteria were collected. Roentgenogram to assess changes in Cobb angles was done. RESULTS There was statistically significant improvement of preoperative, 1-week postoperative, 3-month postoperative, and final follow-up mean of visual analog scale scores with 7.72 (5-10), 3.68 (3-6), 2.88 (2-4), and 1.96 (1-3), respectively, and with Oswestry Disability Index mean of 70.4 (52-86), 35.12 (26-56), 27.68 (24-38), and 24 (20-28), respectively (P < 0.05). In terms of Macnab criteria, 100% had good to excellent result. In terms of scoliosis measured by Cobb angle, there was statistically significant improvement. CONCLUSIONS Endo-TLIF is a safe and effective procedure in mild to moderate degenerative scoliosis with good early clinical results and improvement in coronal Cobb angle. It can be considered as an option if a short segment(s) fusion is planned for adult degenerative scoliosis.
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Affiliation(s)
- Hyeun Sung Kim
- Department of Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of South Korea.
| | - Pang Hung Wu
- Department of Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of South Korea; JurongHealth Campus, Orthopaedic Surgery, National University Health System, Singapore
| | - Yeon Jin Lee
- Department of Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of South Korea
| | - Dae Hwan Kim
- Department of Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of South Korea
| | - Il Tae Jang
- Department of Spine Surgery, Nanoori Gangnam Hospital, Seoul, Republic of South Korea
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Kim HS, Raorane HD, Wu PH, Yi YJ, Jang IT. Evolution of endoscopic transforaminal lumbar approach for degenerative lumbar disease. J Spine Surg 2020; 6:424-437. [PMID: 32656380 PMCID: PMC7340818 DOI: 10.21037/jss.2019.11.05] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 11/05/2019] [Indexed: 01/13/2023]
Abstract
Endoscopic spine surgery has evolved dramatically in last 30 years; with the development of new improved endoscopic optics and instrumentation limitation of endoscopic spine surgery has significantly reduced. The transforaminal approach has been limited in its indications due to its optimized approach and obstacles of bony or neural structures. As the initial transforaminal approach is based on the inside out technique, there were many limitations on the indications. Outside-in approach has been developed to address these limitations. However, the outside-in approach was not free from anatomical obstacles. The mobile outside-in approach technique has advantage of both inside-out and outside-in technique. It is equally safe as inside-out technique and provides an easy handling of structures, while it is equally versatile as outside-in technique in managing different types of disc prolapse such as central, paracentral, foraminal, far lateral, and up and down migration, and in high-canal compromise cases. The mobile outside in technique, however, demands a longer learning curve and beginners need to be patient while learning the technique.
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Affiliation(s)
- Hyeun Sung Kim
- Department of Neurosurgery, Nanoori Hospital Gangnam, Seoul, Republic of Korea
| | | | - Pang Hung Wu
- Department of Neurosurgery, Nanoori Hospital Gangnam, Seoul, Republic of Korea
| | - Yeon Jin Yi
- Department of Neurosurgery, Nanoori Hospital Gangnam, Seoul, Republic of Korea
| | - Il Tae Jang
- Department of Neurosurgery, Nanoori Hospital Gangnam, Seoul, Republic of Korea
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Kim HS, Wu PH, Lee YJ, Kim DH, Kim JY, Lee JH, Jeon JB, Jang IT. Safe Route for Cervical Approach: Partial Pediculotomy, Partial Vertebrotomy Approach for Posterior Endoscopic Cervical Foraminotomy and Discectomy. World Neurosurg 2020; 140:e273-e282. [PMID: 32438007 DOI: 10.1016/j.wneu.2020.05.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/02/2020] [Accepted: 05/04/2020] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Cervical radiculopathy is a common cervical spine condition. There is a paucity of literature discussing the effect of partial pediculotomy and partial vertebrotomy for posterior endoscopic cervical foraminotomy (PPPV PECF) on cervical radiculopathy. We investigated the radiologic and clinical outcomes of this approach. METHODS This was a retrospective evaluation of 30 cases with cervical radiculopathy who underwent PPPV PECF. Preoperative, postoperative roentgenogram for evaluation of stability, computed tomography (CT) evaluation of foraminal dimensions, and area in sagittal view was performed. Three-dimensional reconstruction area of decompression evaluation was performed. Clinical outcomes of the visual analog scale, Oswestry Disability Index, and Macnab score were evaluated. RESULTS There was no complication and recurrence in our PPPV PECF cohort during the study period. At preoperative, 1 week postoperative, and 3 months postoperative and final follow-up, the mean visual analog scale score had significant improvement, with scores of 7.6, 3.0, 2.1, and 1.7, respectively, P < 0.05, and also the mean Oswestry Disability Index, with scores of 73.9, 28.1, 23.3, and 21.5 respectively, P < 0.05. Macnab criteria showed all patients scoring good and excellent. Radiologic results showed PPPV PECF had a significant increase in decompression in the foramen area in all CT-measured parameters, as compared with the mean preoperative values; 1) sagittal area increased 60.1 ± 23.1 mm2, 2) CT craniocaudal length increased 4.0 ± 1.54 mm, 3) CT ventrodorsal length increased 4.0 ± 1.97 mm, and 4) 3-dimensional CT scan reconstruction decompression area increased 996 ± 266 mm2, P < 0.05. CONCLUSIONS PPPV PECF is a safe route of decompression of cervical spine with good clinical and radiologic outcome.
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Affiliation(s)
- Hyeun Sung Kim
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea.
| | - Pang Hung Wu
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea; National University Health System, JurongHealth Campus, Orthopaedic Surgery, Singapore
| | - Yeon Jin Lee
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea
| | - Dae Hwan Kim
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea
| | - Ji Yeon Kim
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea
| | - Jun Hyung Lee
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea
| | - Jun Bok Jeon
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea
| | - Il-Tae Jang
- Nanoori Gangnam Hospital, Spine Surgery, Seoul, Republic of South Korea
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Abstract
Background Schmorls node (SN) are mostly asymptomatic and incidental findings on MRI. However, sometimes they present like acute onset low back pain or acute exacerbation of chronic back pain after minor trauma. Case presentation We present rare case of symptomatic infected SN in 67 years female patient presented with complains of low back pain radiating to right buttock. After initial conservative treatment failed subsequent imaging showed significant increase in size of lesion with focal signal changes in disc space gave suspicion of underlying secondary pathology. Patient operated for complete excision of lesion. Histopathological report was suggestive of pyogenic vertebral osteomyelitis. Patient improved well postoperatively. Conclusion Most of the time acute SN responds well to conservative treatment; however rapid deterioration of symptoms or persistent severe pain should give suspicion of underlying secondary pathology.
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Affiliation(s)
- Hyeun Sung Kim
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea.
| | - Harshavardhan Dilip Raorane
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea
| | - Sagar Bhupendra Sharma
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea
| | - Pang Hung Wu
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea
| | - Il-Tae Jang
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea
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Kim HS, Wu PH, Jang IT. Lumbar Degenerative Disease Part 1: Anatomy and Pathophysiology of Intervertebral Discogenic Pain and Radiofrequency Ablation of Basivertebral and Sinuvertebral Nerve Treatment for Chronic Discogenic Back Pain: A Prospective Case Series and Review of Literature. Int J Mol Sci 2020; 21:ijms21041483. [PMID: 32098249 PMCID: PMC7073116 DOI: 10.3390/ijms21041483] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/17/2020] [Accepted: 02/20/2020] [Indexed: 01/17/2023] Open
Abstract
Degenerative disc disease is a leading cause of chronic back pain in the aging population in the world. Sinuvertebral nerve and basivertebral nerve are postulated to be associated with the pain pathway as a result of neurotization. Our goal is to perform a prospective study using radiofrequency ablation on sinuvertebral nerve and basivertebral nerve; evaluating its short and long term effect on pain score, disability score and patients’ outcome. A review in literature is done on the pathoanatomy, pathophysiology and pain generation pathway in degenerative disc disease and chronic back pain. 30 patients with 38 levels of intervertebral disc presented with discogenic back pain with bulging degenerative intervertebral disc or spinal stenosis underwent Uniportal Full Endoscopic Radiofrequency Ablation application through either Transforaminal or Interlaminar Endoscopic Approaches. Their preoperative characteristics are recorded and prospective data was collected for Visualized Analogue Scale, Oswestry Disability Index and MacNab Criteria for pain were evaluated. There was statistically significant Visual Analogue Scale improvement from preoperative state at post-operative 1wk, 6 months and final follow up were 4.4 ± 1.0, 5.5 ± 1.2 and 5.7 ± 1.3, respectively, p < 0.0001. Oswestery Disability Index improvement from preoperative state at 1week, 6 months and final follow up were 45.8 ± 8.7, 50.4 ± 8.2 and 52.7 ± 10.3, p < 0.0001. MacNab criteria showed excellent outcomes in 17 cases, good outcomes in 11 cases and fair outcomes in 2 cases Sinuvertebral Nerve and Basivertebral Nerve Radiofrequency Ablation is effective in improving the patients’ pain, disability status and patient outcome in our study.
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Affiliation(s)
- Hyeun Sung Kim
- Nanoori Gangnam Hospital, Seoul, Spine Surgery, Seoul 06048, Korea; (P.H.W.); (I.-T.J.)
- Correspondence: ; Tel.: +82-2-6003-9767; Fax.: +82-2-3445-9755
| | - Pang Hung Wu
- Nanoori Gangnam Hospital, Seoul, Spine Surgery, Seoul 06048, Korea; (P.H.W.); (I.-T.J.)
- National University Health Systems, Juronghealth Campus, Orthopaedic Surgery, Singapore 609606, Singapore
| | - Il-Tae Jang
- Nanoori Gangnam Hospital, Seoul, Spine Surgery, Seoul 06048, Korea; (P.H.W.); (I.-T.J.)
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Wu PH, Kim HS, Jang IT. How I do it? Uniportal full endoscopic contralateral approach for lumbar foraminal stenosis with double crush syndrome. Acta Neurochir (Wien) 2020; 162:305-310. [PMID: 31823118 PMCID: PMC6982631 DOI: 10.1007/s00701-019-04157-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 11/25/2019] [Indexed: 12/17/2022]
Abstract
Background Evolution of endoscopic surgery provides equivalent results to open surgery with advantages of minimal invasive surgery. The literature on technique Uniportal Full endoscopic contralateral approach is scarce. Methods The endoscopic contralateral approach technique applies for patients presenting with double crush syndrome with foraminal and extraforminal stenosis. The key steps focus on contralateral ventral overriding superior articular process decompression, foraminal and extraforaminal discectomy, and lateral vertebral syndesmophyte decompression leading to enlargement of the contralateral foramen and extraforamen size. Conclusion The Uniportal Full endoscopic contralateral approach is a good alternative to open surgery or minimally invasive microscopic surgery through direct endoscopic visualization of the entire route of exiting nerve with no neural retraction allowing both lateral recess and foraminal and extraforaminal decompression all in one approach. Electronic supplementary material The online version of this article (10.1007/s00701-019-04157-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pang Hung Wu
- Department of Neurosurgery, Nanoori Gangnam Hospital, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of South Korea
- JurongHealth Campus, Orthopaedic Surgery, National University Health Systems, Singapore, Singapore
| | - Hyeun Sung Kim
- Department of Neurosurgery, Nanoori Gangnam Hospital, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of South Korea.
| | - Il-Tae Jang
- Department of Neurosurgery, Nanoori Gangnam Hospital, 731, Eonju-ro, Gangnam-gu, Seoul, Republic of South Korea
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Chiang CC, Huang SY, Qu D, Wu PH, Chien CL. Absence of Evidence of Electrical Switching of the Antiferromagnetic Néel Vector. Phys Rev Lett 2019; 123:227203. [PMID: 31868421 DOI: 10.1103/physrevlett.123.227203] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/16/2019] [Indexed: 06/10/2023]
Abstract
Much theoretical and experimental attention has been focused on the electrical switching of the antiferromagnetic (AFM) Néel vector via spin-orbit torque. Measurements employing multiterminal patterned structures of Pt/AFM show recurring signals of the supposedly planar Hall effect and magnetoresistance, implying AFM switching. We show in this Letter that similar signals have been observed in structures with and without the AFM layer, and of an even larger magnitude using different metals and substrates. These may not be the conclusive evidence of spin-orbit torque switching of AFM, but the thermal artifacts of patterned metal structure on substrate. Large current densities in the metallic devices, beyond the Ohmic regime, can generate unintended anisotropic thermal gradients and voltages. AFM switching requires unequivocal detection of the AFM Néel vector before and after SOT switching.
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Affiliation(s)
- C C Chiang
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - S Y Huang
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - D Qu
- Institute of Physics, Academia Sinica, Taipei, 11529, Taiwan
| | - P H Wu
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - C L Chien
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
- Institute of Physics, Academia Sinica, Taipei, 11529, Taiwan
- Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA
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Wu PH, Xie Y, Zhao WH, Hua Y, Sun Q, Li S, Wu Y, Lu XT. [Clinical characteristics analysis of children with reversible posterior leukoen-cephalopathy syndrome during the treatment of hematological tumor]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:662-665. [PMID: 30122768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To analyze the clinical characteristics of patients with hematological tumor or disease before and after reversible posterior leukoen-cephalopathy syndrome (RPLS). METHODS Five patients were both from Peking University First Hospital Pediatric Hematology-oncology Department in the period from March 2012 to March 2017. The gender, age, BMI, underlying diseases, with or without renal damage, hypertension family history, clinical manifestations of convulsions, hemoglobin, and blood pressure, serum sodium levels before and after convulsion, and other data of the children with RPLS were retrospectively analyzed. In the meantime, we followed up the five patients for 6 months to 66 months, kept a watchful eye on their original condition and the recovery of symptoms and signs of the nervous system. The relevant literature was reviewed. RESULTS All of the subjects were females in school-age or pre-school age. The underlying diseases were malignant tumor associated with renal involvement or on one side of nephrectomy in 4 of these subjects, while the other one was refractory autoimmune hemolytic anemia. All of the subjects suffered from mild or moderate anemia. The day before RPLS occurred they received chemotherapy made up with cyclophosphamide, vincristine, and actinomycin-D, or the therapy with cyclosporin A and glucocorticoid. The clinical manifestations were afebrile convulsion after getting up in the mooring or in the afternoon. We observed elevation of blood pressure and cutting down of serum sodium compared with themselves. All of the cases recovered soon after management with diazepam, furosemide and amlodipine besylate. Four of them had a good outcomes and did not remain any sequela, while only one girl became childish in emotion and behavior, and then returned gradually to normal two years later. However, by long-term follow-up, the elevation of blood pressure was mainly reviewed in literature. CONCLUSION The patients attacked by RPLS, with hematology or oncology cases, could have the underlying disease of renal damage and anemia. Blood pressure elevation and serum sodium falling down at the same time may play an important role during the occurrence of RPLS. Remaining stable of blood pressure and electrolyte level together will possibly reduce or mitigate RPLS.
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Affiliation(s)
- P H Wu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y Xie
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - W H Zhao
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y Hua
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Q Sun
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - S Li
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y Wu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - X T Lu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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Wu PH, Dixit A, Kiat Tan DM, Shen L, Chee YH. Prospective study of surgical fixation of radial head fractures using cannulated headless compression screws for simple and complex radial head fractures. J Orthop Surg (Hong Kong) 2018; 25:2309499017716278. [PMID: 28656872 DOI: 10.1177/2309499017716278] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Fixing the two-part Mason II radial head fracture using screws is becoming a popular practice. However, the screw fixation efficacy for three-part Mason III and IV fractures is controversial. The purpose of this study is to determine the effectiveness of using a uniform technique of headless compression screw fixation in simple, isolated Mason II and complex three-part Mason III and IV radial head fractures in terms of functional outcome, treatment efficiency and assessment of complications with the procedure. METHODS A prospective evaluation were performed on 31 adult patients with closed, non-pathological Mason II, III and IV radial head fractures sustained due to trauma and who underwent fixation using either two or three cannulated headless compression screws of 2.0 to 2.5 mm, and all patients were followed up for 2 years after the injury. They were divided into simple Mason II fracture group and complex three-part Mason III-IV fracture group. Operation time, time to discharge and radiological union were used as parameters for assessment of clinical outcome, while Mayo Elbow Performance Score, range of motion and complications were used to assess the functional outcomes. RESULTS Twelve cases of two-part simple fracture group and 18 cases of complex fracture group were identified. The mean age of 39 years is comparable between the two groups. Both groups had comparable days to union, mean hospital stay and operation time. In the simple fracture group, the mean Mayo Elbow Score was 97 (80-100), which is better than the complex fracture group score of 89 (75-100), p = 0.035. Both groups had no statistical difference in complication rates. All fractures united in our series. The mean range of motion for the simple fracture group was significant, with 133° ± 17.0° for flexion-extension arc, 85° ± 5° in pronation and supination as compared to the complex fracture group with 120° ± 20° flexion-extension arc, 69° ± 10° in pronation and 70° ± 8° in supination, p = 0.068. CONCLUSION Overall clinical and functional outcomes of this technique are satisfactory in both simple and complex fracture groups, with simple Mason II fracture group doing better than the complex three-part Mason III and IV fractures in terms of Mayo Elbow Score and range of motion. Screw fixation has the advantage of less periosteal stripping and less impingement compared to other fixation methods and also allows for flexible fixation in constrained areas. Headless compression screw fixation can be considered as a method of fracture fixation for both simple and complex three-part radial head fractures.
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Affiliation(s)
- Pang Hung Wu
- 1 Department of Orthopaedic Surgery, Ng Teng Feng General Hospital, Jurong Health Campus, National University Hospital Systems, Singapore
| | - Anushri Dixit
- 2 Faculty of Medicine and Dentistry, Queen Mary, University of London, London, UK
| | - David Meng Kiat Tan
- 3 Division of Hand and Reconstructive Microsurgery, Department of University Orthopaedics, Hand and Reconstructive Microsurgery Cluster, National University Health Systems, Singapore
| | - Liang Shen
- 4 Medicine Dean's Office, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yu Han Chee
- 5 Division of Musculoskeletal Trauma Surgery, Department of University Orthopaedics, Hand and Reconstructive Microsurgery Cluster, National University Health Systems, Singapore
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Kumar N, Malhotra R, Maharajan K, Zaw AS, Wu PH, Makandura MC, Po Liu GK, Thambiah J, Wong HK. Metastatic Spine Tumor Surgery: A Comparative Study of Minimally Invasive Approach Using Percutaneous Pedicle Screws Fixation Versus Open Approach. Clin Spine Surg 2017; 30:E1015-E1021. [PMID: 27352374 DOI: 10.1097/bsd.0000000000000400] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
STUDY DESIGN Prospective cohort study. SUMMARY OF BACKGROUND DATA Minimally invasive spinal surgery (MISS) has been gaining recognition in patients with metastatic spine disease (MSD). The advantages are reduction in blood loss, hospital stay, and postoperative morbidity. Most of the studies were case series with very few comparing the outcomes of MISS to open approaches. OBJECTIVE To evaluate and compare the clinical and perioperative outcomes of MISS versus open approach in patients with symptomatic MSD, who underwent posterior spinal stabilization and/or decompression. PATIENTS AND METHODS Our study included 45 MSD patients; 27 managed by MISS and 18 by open approach. All patients had MSD presenting with symptoms of neurological deficit, spinal instability, or both. Preoperative, intraoperative, and postoperative data were collected for comparison of the 2 approaches. All patients were followed up until the end of study period (maximum up to 4 years from time of surgery) or till their demise. The clinical outcome measures were pain control, neurological and functional status, whereas perioperative outcomes were blood loss, operative time, length of hospital stay, and time taken to initiate radiotherapy/chemotherapy after index surgery. RESULTS Majority of patients in both groups showed improvement in pain, neurological status, independent ambulation, and ECOG score in the postoperative period with no significant differences between the 2 groups. There was a significant reduction in intraoperative blood loss (621 mL less, P<0.001) in the MISS group. The average time to initiate radiotherapy after surgery was 13 days (range, 12-16 d) in MISS and 24 days (range, 16-40 d) in the open group. This difference was statistically significant (P<0.001). Operative time and duration of hospital stay were also favorable in the MISS group, although the differences were not significant. CONCLUSIONS MISS is comparable with open approach demonstrating similar improvements in clinical outcomes, that is pain control, neurological and functional status. MISS approaches have also shown promising results due to lesser intraoperative blood loss and allowing earlier radiotherapy/chemotherapy.
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Affiliation(s)
- Naresh Kumar
- Department of Orthopaedic Surgery, National University Health System, Singapore, Singapore
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Zhong QH, Wu PH, Qin QY, Kuang YY, Ma TH, Wang HM, Zhu YX, Chen DC, Wang JP, Wang L. [Pathological insights of radiotherapy-related damage to surgical margin after preoperative radiotherapy in patients with rectal cancer]. Zhonghua Wai Ke Za Zhi 2017; 55:507-514. [PMID: 28655079 DOI: 10.3760/cma.j.issn.0529-5815.2017.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of irradiation to anastomosis from preoperative radiotherapy for patients with rectal cancer by studying the pathological changes. Methods: In this retrospective study, patients enrolled in the FOWARC study from January 2011 to July 2014 in the Sixth Affiliated Hospital of Sun Yat-Sen University were included. In the FOWARC study, enrolled patients with local advanced rectal cancer were randomly assigned to receive either neoadjuvant chemo-radiotherapy or chemotherapy. Among these patients, 23 patients were selected as radiation proctitis (RP)group, who fulfilled these conditions: (1) received neoadjuvant chemo-radiotherapy followed by sphincter-preserving surgery; (2) developed radiation proctitis as confirmed by preoperative imaging diagnosis; (3) had intact clinical samples of surgical margins. Twenty-three patients who had received neoadjuvant chemo-radiotherapy but without development of radiation proctitis were selected as non-radiation proctitis (nRP) group. Meanwhile, 23 patients received neoadjuvant chemotherapy only were selected as neoadjuvant chemotherapy (CT) group. Both nRP and CT cases were selected by ensuring the basic characteristics such as sex, age, tumor site, lengths of proximal margin and distal margin all maximally matched to the RP group. Both proximal and distal margins were collected for further analysis for all selected cases. Microscopy slices were prepared for hematoxylin & eosin staining and Masson staining to show general pathological changes, and also for immunohistochemistry with anti-CD-34 as primary antibody to reveal the microvessel. Microvessel counting in submucosal layer and proportion of macrovessel with stenosis were used to evaluate the blood supply of the proximal and distal end of anastomosis. A modified semi-quantitative grading approach was used to evaluate the severity of radiation-induced injury. Either ANOVA analysis, Kruskal-Wallis rank-sum test or χ(2) test was used for comparison among three groups, and Mann-Whitney U test was used for comparison between two groups. Results: Compared to group of neoadjuvant chemotherapy only, patients receiving neoadjuvant chemo-radiotherapy had lower microvessel count in both proximal and distal margins (M(Q(R)): proximal, 25.5 (19.6) vs. 50.0 (25.0), Z=3.915, P=0.000; distal, 20.5 (17.5) vs. 49.0 (28.0), Z=3.558, P=0.000), higher proportions of macrovessel with stenosis (proximal, 9.5% (23.8%) vs. 0, Z=3.993, P=0.000; distal, 11.5%(37.3%) vs. 0 (2.0%), Z=2.893, P=0.004), higher histopathologic score (proximal, 4.0 (2.0) vs. 1.0 (2.0), Z=6.123, P=0.000; distal, 5.0 (3.0) vs. 2.0 (1.0), Z=4.849, P=0.000). In patients receiving neoadjuvant chemo-radiotherapy, compared to nRP group, RP group had lower microvessel count in both proximal and distal margins (proximal, 19.0 (23.0) vs. 30.4 (38.0), Z=2.845, P=0.004; distal, 19.0 (13.0) vs. 30.0(29.1), Z=2.022, P=0.043), higher proportions of macrovessel with stenosis (proximal, 23.0% (40.0%) vs. 0(11.0%), Z=3.248, P=0.001; distal, 27.0% (45.0%) vs. 3.0% (19.0%), Z=2.164, P=0.030). Rate of anastomotic leakage for CT, nRP and RP group were 8.7% (2/23), 30.4% (7/23), and 52.2% (12/23), and the differences among three groups were statistically significant (χ(2)=10.268, P=0.007). Conclusion: Radiation-induced injury existed on both margins of the resected rectal site after preoperative radiotherapy, and those diagnosed as radiation proctitis had more severe microvascular injury.
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Affiliation(s)
- Q H Zhong
- Department of Colorectal Surgery, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou 510655, China
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