Article
Orthopedics
Zhe Qu, Bin Deng, Xiao Gao, Bin Pan, Wei Sun, Hu Feng
Summary: This study aimed to evaluate the effect of Roussouly type on development of radiological ASD after single-level lumber fusion and compare the Roussouly types and spinopelvic parameters among different degenerative patterns of ASD on sagittal plane. The results showed that Roussouly type was significantly associated with the development of radiological ASD, and the Roussouly types and spinal pelvic parameters varied among different sagittal degenerative patterns of ASD.
BMC MUSCULOSKELETAL DISORDERS
(2022)
Article
Clinical Neurology
Han Jo Kim, R. Kiran Alluri, Renaud Lafage, Jonathan Elysee, Justin S. Smith, Gregory M. Mundis, Christopher Shaffrey, Christopher P. Ames, Douglas C. Burton, Eric O. Klineberg, Shay Bess, Frank Schwab, Munish Gupta, Virginie Lafage
Summary: In this retrospective study of a multicenter Adult Spinal Deformity (ASD) Database, the changes in pelvic tilt (PT) were found to be significantly correlated with regional changes in lumbar lordosis. Specifically, an increase in lumbar lordosis in the L1-4 region correlated with a decrease in PT, while an increase in lumbar lordosis in the L4-S1 region also resulted in a decrease in PT. These findings provide valuable insights for surgical planning in cases of ASD.
Article
Clinical Neurology
Bailey O'Connor, Caroline E. Drolet, Jean-Christophe A. Leveque, Venu Nemani, Katie L. Krause, Michael Dorsi, Samuel Schroerlucke, Jesse Shen, Philip K. Louie
Summary: This retrospective study compared the 6-month postoperative radiographic outcomes of lumbar spine in patients undergoing transforaminal (TLIF), posterior (PLIF), anterior (ALIF), and lateral (LLIF) interbody fusions. The results showed that ALIF/LLIF procedures resulted in improved segmental lordosis and reduced pelvic incidence to lumbar lordosis (PI-LL) mismatch compared to TLIF/PLIF procedures. Additionally, ALIF/LLIF procedures decreased lordosis at adjacent levels, leading to a more neutral position.
Article
Multidisciplinary Sciences
Akihiko Hiyama, Hiroyuki Katoh, Daisuke Sakai, Masato Sato, Masahiko Watanabe
Summary: This study found that preoperative sagittal misalignment does not significantly affect the correction of alignment after lateral lumbar interbody fusion (LLIF) surgery in patients with lumbar degenerative diseases. However, postoperative low back pain, leg pain, and leg numbness may be improved regardless of the preoperative sagittal alignment.
SCIENTIFIC REPORTS
(2022)
Article
Clinical Neurology
Sun Geon Yoon, Hyung Chang Lee, Sang-Min Lee
Summary: This study aimed to investigate the relationship between preoperative or postoperative spinopelvic parameters and symptomatic adjacent segment degeneration (ASD) after single-level anterior lumbar interbody fusion (ALIF) surgery at the L4-5 segments. The results showed that postoperative pelvic tilt (PT) and a mismatch between lumbar lordosis (LL) and pelvic incidence (PI) were significant risk factors for symptomatic ASD.
Article
Clinical Neurology
Chang Hwa Ham, Youn-Kwan Park, Joo Han Kim, Woo-Keun Kwon, Dong Wook Kim, Hong Joo Moon
Summary: Sagittal spinopelvic alignment (SSPA) parameters are crucial for diagnosing and monitoring the progression of adult spinal deformities (ASDs). Certain clinical symptoms in patients with lumbar spinal stenosis (LSS) and herniated nucleus pulposus (HNP) may distort SSPA and mimic ASD.
Article
Clinical Neurology
Ki Young Lee, Jung-Hee Lee, Sang-Kyu Im
Summary: The study evaluated optimal target values for spine balance correction in elderly patients with adult spinal deformity over 60 years old. Risk factors for postoperative sagittal imbalance were identified as pelvic incidence (PI), lumbar lordosis (LL), and post pelvic tilt ratio (PTr), with target values suggested as PI-LL <1.33 and PTr <25.95%. These findings can serve as effective guidelines for spine surgeons performing reconstruction surgeries for elderly patients with sagittal imbalance.
Article
Orthopedics
Siyu Zhou, Woquan Zhong, Zhuoran Sun, Yang Guo, Yi Zhao, Wei Li, Weishi Li
Summary: The changes in spinal alignment from standing to sitting positions are relatively limited in patients after lumbar fusion, and the adjacent unfused lumbar segments may compensate for stress during sitting, which may be related to adjacent segment degeneration (ASD).
ORTHOPAEDIC SURGERY
(2022)
Article
Orthopedics
Samir Smajic, Aleksandar Vujadinovic, Adnan Kasapovic, Dakheel A. Aldakheel, Yann Philippe Charles, Axel Walter, Jean-Paul Steib, Nicola Maffulli, Filippo Migliorini, Alice Baroncini
Summary: The study showed that Mobidisc implantation led to improvement in lumbar lordosis (LL) and segmental lordosis (SL) at the treated level, with an increase in both anterior and posterior disc height. However, disc height at the adjacent level decreased.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2022)
Article
Clinical Neurology
Chizuo Iwai, Javier Pizones, Louis Boissiere, Sreenath Jakinapally, Caglar Yilgor, Daniel Larrieu, Ferran Pellise, Jean-Marc Vital, Anouar Bourghli, Ibrahim Obeid
Summary: The study conducted a prospective observation of 25 patients with spinal deformities, revealing that the location of the lumbar apex can change with different postural positions, but remains stable when assessed as the furthest point of global lumbar lordosis. These findings can help in assessing compensation of lumbar lordosis and guide lumbar lordosis molding in ASD surgery.
EUROPEAN SPINE JOURNAL
(2021)
Article
Clinical Neurology
Tanvir Johanning Bari, Martin Heegaard, Rachid Bech-Azeddine, Benny Dahl, Martin Gehrchen
Summary: The study found that hypolordotic lordosis maldistribution (LDI < 50) in instrumented lumbar fusion surgery was associated with an increased risk of revision surgery, increased postoperative pelvic tilt and pelvic incidence minus lumbar lordosis mismatch. Lordosis distribution should be carefully considered prior to spinal fusion, especially in patients with high pelvic incidence.
Article
Orthopedics
Yasuhito Takahashi, Kei Watanabe, Masashi Okamoto, Shun Hatsushikano, Kazuhiro Hasegawa, Naoto Endo
Summary: In this study, we found that the novel morphologic parameters SIP and PIA were reliable for determining the morphology and orientation of the pelvis. The ideal lumbar lordosis angle could be accurately predicted using SIP, with equal accuracy as using PI.
BMC MUSCULOSKELETAL DISORDERS
(2021)
Article
Clinical Neurology
Louis Boissiere, Fernando Guevara-villazon, Anouar Bourghli, Ralph Abdallah, Ferran Pellise, Javier Pizones, Ahmet Alanay, Frank Kleinstueck, Daniel Larrieu, Ibrahim Obeid
Summary: This study retrospectively analyzed the relationship between rod and spinal shape in adult spinal deformity surgery. The results showed variations between the curvatures of the rod and spine, suggesting that the shape of the rod does not seem to predict the shape of the spine in the sagittal plane.
EUROPEAN SPINE JOURNAL
(2023)
Article
Clinical Neurology
Austin Q. Nguyen, Jackson P. Harvey, Vincent P. Federico, Michael T. Nolte, Krishn Khanna, Sapan D. Gandhi, Evan D. Sheha, Matthew W. Colman, Frank M. Phillips
Summary: This study aimed to examine the effects of L5-S1 anterior lumbar interbody fusion on segmental, adjacent-level, and global lordosis. The results showed that an increase in segmental lordosis following the fusion procedure significantly increased global lordosis, but also caused a decrease in adjacent-level lordosis. This suggests that an increase in segmental lordosis may lead to a compensatory loss of lordosis at the adjacent level.
GLOBAL SPINE JOURNAL
(2023)
Article
Clinical Neurology
Muyi Wang, Liang Xu, Xi Chen, Qingshuang Zhou, Changzhi Du, Bo Yang, Zezhang Zhu, Bin Wang, Yong Qiu, Xu Sun
Summary: The study revealed a significant association between postoperative GAP score and occurrence of ASD after lumbar fusion surgery. Setting surgical goals according to the GAP score may help reduce the occurrence of ASD.
Article
Neuroimaging
Nimer Adeeb, Mahmoud Dibas, Jose Danilo Bengzon Diestro, Kevin Phan, Hugo H. Cuellar-Saenz, Ahmad Sweid, Sovann Lay, Adrien Guenego, Assala Aslan, Leonardo Renieri, Sri Hari Sundararajan, Guillaume Saliou, Markus Mohlenbruch, Robert W. Regenhardt, Justin E. Vranic, Ivan Lylyk, Paul M. Foreman, Jay A. Vachhani, Vedran Zupancic, Muhammad U. Hafeez, Caleb Rutledge, Muhammad Waqas, Vincent M. Tutino, James D. Rabinov, Yifan Ren, Clemens M. Schirmer, Mariangela Piano, Anna L. Kuhn, Caterina Michelozzi, Stephanie Elens, Robert M. Starke, Ameer Hassan, Arsalaan Salehani, Alex Brehm, MajdEddin MohammedAli, Jesse Jones, Marios Psychogios, Julian Spears, Boris Lubicz, Pietro Panni, Ajit S. Puri, Guglielmo Pero, Christoph J. Griessenauer, Hamed Asadi, Adnan Siddiqui, Andrew Ducruet, Felipe C. Albuquerque, Rose Du, Peter Kan, Vladimir Kalousek, Pedro Lylyk, Christopher J. Stapleton, Srikanth Boddu, Jared Knopman, Mohammad A. Aziz-Sultan, Nicola Limbucci, Pascal Jabbour, Christophe Cognard, Aman B. Patel, Adam A. Dmytriw
Summary: This study compared the angiographic and clinical outcomes of using the WEB device for the treatment of bifurcation aneurysms at various locations. The results showed that basilar tip and ICA bifurcation aneurysms had significantly higher rates of aneurysm occlusion compared to other locations.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2023)
Letter
Neuroimaging
Ahmed Y. Azzam, Sherief Ghozy, Kevin M. Kallmes, Adam A. Dmytriw, Ramanathan Kadirvel, David F. Kallmes
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2023)
Article
Clinical Neurology
Andrew W. Kraft, Amine Awad, Joseph A. Rosenthal, Adam A. Dmytriw, Justin E. Vranic, Anna K. Bonkhoff, Martin Bretzner, Joshua A. Hirsch, James D. Rabinov, Christopher J. Stapleton, Lee H. Schwamm, Natalia S. Rost, Thabele M. Leslie-Mazwi, Aman B. Patel, Robert W. Regenhardt
Summary: This study found that spoke-administered intravenous thrombolysis (IVT) in patients with large vessel occlusion stroke can reduce the procedure time, fluoroscopy time, and number of passes during mechanical thrombectomy (MT), while also improving reperfusion.
INTERVENTIONAL NEURORADIOLOGY
(2023)
Article
Clinical Neurology
Fawaz Al-Mufti, Priyank Khandelwal, Tolga Sursal, Jared B. Cooper, Eric Feldstein, Krishna Amuluru, Jayaji M. More, Ambooj Tiwari, Amit Singla, Adam A. Dmytriw, Mariangela Piano, Luca Quilici, Guglielmo Pero, Leonardo Renieri, Nicola Limbucci, Mario Martinez-Galdamez, Miguel Schuller-Arteaga, Jorge Galvan, Juan Francisco Arenillas-Lara, Zafar Hashim, Sanjeev Nayak, Keith Desousa, Hai Sun, Pankaj K. Agarwalla, J. Sudipta Roychowdhury, Emad Nourollahzadeh, Tannavi Prakash, Andrew R. Xavier, J. Diego Lozano, Gaurav Gupta, Dileep R. Yavagal, Mohammad Elghanem, Chirag D. Gandhi, Stephan A. Mayer
Summary: Elevated NLR in COVID-19 patients with large vessel occlusion (LVO) strokes is associated with significantly worse outcomes and increased mortality. The severe neuro-inflammatory stress response related to COVID-19 may negate the potential benefits of successful thrombectomy.
INTERVENTIONAL NEURORADIOLOGY
(2023)
Article
Orthopedics
Christopher A. White, Addison Quinones, Justin E. Tang, Liam R. Butler, Akiro H. Duey, Jun S. Kim, Samuel K. Cho, Paul J. Cagle
Summary: This study aimed to explore the impact of alcohol use disorder on readmissions and complications following total shoulder arthroplasty. It found that patients with an alcohol use disorder were more likely to experience shoulder dislocation, liver complications, and readmission within 90 days. Surgeons should therefore take caution and prevent complications and readmissions in patients with an alcohol use disorder during total shoulder arthroplasty.
JOURNAL OF ORTHOPAEDICS
(2023)
Letter
Clinical Neurology
Sherief Ghozy, Ahmed Y. Azzam, Adam A. Dmytriw
Article
Engineering, Biomedical
Georgios Ntolkeras, Hongbae Jeong, Lilla Zollei, Adam A. Dmytriw, Ali Purvaziri, Michael H. Lev, P. Ellen Grant, Giorgio Bonmassar
Summary: This study developed a realistic high-resolution numerical model of a female pediatric body named "Athena" using MRI and CT scans of a 3.5-year-old healthy girl. The model has significance in radiofrequency safety studies for medical devices, neurostimulation research, and radiation dosimetry studies.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Meeting Abstract
Clinical Neurology
Robert W. Regenhardt, Anna Bonkhoff, Markus D. Schirmer, Alvin S. Das, Adam A. Dmytriw, Justin Vranic, Rajiv Gupta, James D. Rabinov, Christopher J. Stapleton, Thabele M. Leslie-Mazwi, Aman B. Patel, Natalia S. Rost
Article
Orthopedics
Eric A. Geng, Brian H. Cho, Aly A. Valliani, Varun Arvind, Akshar V. Patel, Samuel K. Cho, Jun S. Kim, Paul J. Cagle
Summary: Demand for total shoulder arthroplasty is increasing, and the authors developed a machine learning model to identify shoulder implant manufacturers and types. Using convolutional neural network, the model achieved an accuracy of 93.9% on 696 X-ray images, assisting with preoperative planning and improving cost-efficiency in shoulder surgery.
JOURNAL OF ORTHOPAEDICS
(2023)
Article
Cardiac & Cardiovascular Systems
Kaiz S. Asif, Fadar O. Otite, Shashvat M. Desai, Nabeel Herial, Violiza Inoa, Fawaz Al-Mufti, Ashutosh P. Jadhav, Adam A. Dmytriw, Alicia Castonguay, Priyank Khandelwal, Jennifer Potter-Vig, Viktor Szeder, Tanzila Kulman, Victor Urrutia, Hesham Masoud, Gabor Toth, Kaustubh Limaye, Sushanth Aroor, Waleed Brinjikji, Ansaar Rai, Jeyaraj Pandian, Mehari Gebreyohanns, Thomas Leung, Ossama Mansour, Andrew M. Demchuk, Vikram Huded, Sheila Martins, Osama Zaidat, Xiaochuan Huo, Bruce Campbell, P. N. Sylaja, Zhongrong Miao, Jeffrey Saver, Santiago Ortega-Gutierrez, Dileep R. Yavagal
Summary: Despite the well-established benefit of mechanical thrombectomy for stroke, access to this treatment is limited globally. A survey conducted in multiple countries revealed significant disparities in mechanical thrombectomy access, with income level and availability of operators and centers being important determinants.
Article
Clinical Neurology
Chunlin Ma, Wenbo Cao, Yang Huang, Qiuyue Tian, Yanfei Chen, Yabing Wang, Jian Chen, Peng Gao, Adam A. Dmytriw, Robert W. Regenhardt, Fei Chen, Qingfeng Ma, Liqun Jiao, Bin Yang
Summary: The study aimed to investigate the effect of two major etiologies (intracranial atherosclerotic stenosis and cardioembolism) on outcomes of acute ischemic stroke patients with large vessel occlusion undergoing endovascular thrombectomy. Clinical data of anterior circulation AIS patients receiving EVT were retrospectively analyzed, and the clinical outcomes were compared. The etiology was not considered as an important factor in functional outcome, despite the differences in baseline characteristics and technical approach.
FRONTIERS IN NEUROLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Justin E. Vranic, Pablo Harker, Christopher J. Stapleton, Robert W. Regenhardt, Adam A. Dmytriw, Omer M. Doron, Naif M. Alotaibi, Thabele M. Leslie-Mazwi, Rajiv Gupta, Inka K. Berglar, Can Ozan Tan, Matthew J. Koch, Scott B. Raymond, Justin R. Mascitelli, T. Tyler Patterson, Joshua Seinfeld, Andrew White, David Case, Christopher Roark, Chirag D. Gandhi, Fawaz Al-Mufti, Jared Cooper, Charles Matouk, Nanthiya Sujijantarat, Diego A. Devia, Maria I. Ocampo-Navia, Daniel E. Villamizar-Torres, Juan C. Puentes, Aman B. Patel
Summary: This study aims to evaluate the impact of the type and duration of dual antiplatelet therapy (DAPT) on aneurysm occlusion rates and complications after endoluminal flow diversion. The findings suggest that an abbreviated duration of DAPT lasting 6 months may be most appropriate to promote timely aneurysm occlusion while minimizing thromboembolic complications.
JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY
(2023)
Article
Neuroimaging
Long Li, Bin Yang, Adam A. Dmytriw, Yanling Li, Haozhi Gong, Xuesong Bai, Chao Zhang, Jian Chen, Jia Dong, Yabing Wang, Peng Gao, Tao Wang, Jichang Luo, Xin Xu, Yao Feng, Xiao Zhang, Renjie Yang, Yan Ma, Liqun Jiao
Summary: This study investigated the potential threshold values in the functional assessment of intracranial atherosclerotic stenosis (ICAS) by studying the relation between pressure-derived indexes and perfusion parameters. The results showed that cut-off values of translesional pressure gradients (Pd/Pa=0.81 or Pa-Pd=8 mm Hg) were preliminary established in a highly selected subgroup with ICAS, which may facilitate clinical decision-making in the management of ICAS.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2023)
Article
Neuroimaging
Ibrahim Alghamdi, Adam A. Dmytriw, Afsaneh Amirabadi, Samantha Lebarron, Vanessa Rea, Carmen Parra-Farinas, Prakash Muthusami
Summary: This retrospective study aimed to assess the frequency, imaging appearances, and risk factors of brain microemboli following pediatric neuroangiography using early diffusion-weighted MRI imaging. The study found that the occurrence of cerebral microemboli is uncommon in children after uncomplicated neuroangiography. However, the incidence approaches that reported in adults when there is underlying vasculopathy and the transradial technique is used. Additionally, there is a significant association between the number of angiographic runs and microemboli.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2023)
Editorial Material
Clinical Neurology
Samuel K. Cho