Full Text Journal Articles by
Author Maxwell Boakye

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Factors Impacting Outcomes and HealthCare Utilization in Osteoporotic Patients Undergoing Lumbar Spine Fusions: A MarketScan Database Analysis.

Mayur Sharma, Kevin John, Nicholas Dietz, Zaid Aljuboori, Fabian Carballo Madrigal, Shawn Adams, Dengzhi Wang, Beatrice Ugiliweneza, Doniel Drazin, Maxwell Boakye,

OBJECTIVE:Identify factors impacting long-term complications, reoperations/readmission rates and healthcare utilization in OP patients following lumbar fusions. MATERIALS AND METHODS:We used ICD9/10 and CPT codes to extract data from MarketScan (2000-2016). Lumbar spine fusion patients were divided into two groups based on preoperative diagnosis: Osteoporosis (OP) or non-Osteoporosis (n-OP). We used ... Read more >>

World Neurosurg (World Neurosurgery)
[2020, :]

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Treadmill-based Gait Kinematics in the Yucatan Mini Pig.

Maxwell Boakye, Johnny Morehouse, Jay Ethridge, Darlene Burke, Nicolas K Khattar, Chitra Kumar, Neda Manouchehri, Femke Streijger, Robert Reed, David S K Magnuson, Leslie Sherwood, Brian K Kwon, Dena R Howlan,

Yucatan miniature pigs (YMPs) are similar to humans in spinal cord size, physiological and neuroanatomical features, making them a useful model for human spinal cord injury. However, little is known regarding pig gait kinematics, especially on a treadmill. In this study, twelve healthy YMPs were assessed during bipedal and/or quadrupedal ... Read more >>

J. Neurotrauma (Journal of neurotrauma)
[2020, :]

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Rare dorsal thoracic arachnoid web mimics spinal cord herniation on imaging.

Zaid Aljuboori, Maxwell Boakye,

Background:Dorsal arachnoid webs (DAWs) are rare clinical entities that can mimic other conditions on magnetic resonance imaging (MRI). Here, we present a case of DAW that was misdiagnosed on MR as a ventral cord herniation. Case Description:A 35-year-old female presented with a 1-year history of lower extremity weakness and numbness. ... Read more >>

Surg Neurol Int (Surgical neurology international)
[2020, 11:66]

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National Trends and Factors Predicting Outcomes Following Laser Interstitial Thermal Therapy for Brain Lesions: Nationwide Inpatient Sample Analysis.

Mayur Sharma, Beatrice Ugiliweneza, Dengzhi Wang, Maxwell Boakye, Norberto Andaluz, Joseph Neimat, Alireza Mohammadi, Gene H Barnett, Brian J Williams,

BACKGROUND:Laser interstitial thermal therapy (LITT) is a stereotactic-guided technique, which is increasingly being performed for brain lesions. The aim of our study was to report the national trends and factors predicting the clinical outcomes following LITT using the Nationwide Inpatient Sample. METHODS:We extracted data from 2011-2016 using ICD-9/10 codes. Patients ... Read more >>

World Neurosurg (World neurosurgery)
[2020, :]

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Inverse national trends of laser interstitial thermal therapy and open surgical procedures for refractory epilepsy: a Nationwide Inpatient Sample-based propensity score matching analysis.

Mayur Sharma, Tyler Ball, Ahmad Alhourani, Beatrice Ugiliweneza, Dengzhi Wang, Maxwell Boakye, Joseph S Neimat,

OBJECTIVE:Surgery for medically refractory epilepsy (RE) is an underutilized treatment modality, despite its efficacy. Laser interstitial thermal therapy (LITT), which is minimally invasive, is increasingly being utilized for a variety of brain lesions and offers comparable seizure outcomes. The aim of this study was to report the national trends of ... Read more >>

Neurosurg Focus (Neurosurgical focus)
[2020, 48(4):E11]

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Economics of the Management of Craniospinal Chordoma and Chondrosarcoma and the Feasibility of the Bundled Payment Model

Zaid Aljuboori, Beatrice Ugiliweneza, Dengzhi Wang, Norberto Andaluz, Maxwell Boakye, Brian Williams,

Abstract Background Healthcare expenditures are continuously rising in the United States. The Centers for Medicare and Medicaid Services (CMS) created a new reimbursement model called the “Bundled Payment for Care Improvement (BPCI)”. This model reimburses providers a predetermined payment in advance to cover all possible services delivered to patients within ... Read more >>

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Failure of C2-3 anterior arthrodesis for the treatment of atypical Hangman's fractures: A three case series.

Zaid Aljuboori, Samer Hoz, Maxwell Boakye,

Hangman's fractures (HF) are defined by bilateral fractures of pars interarticularis of the axis. Most can be treated with a collar. However, the treatment strategies for atypical HF (AHF) involve the pedicles, are unstable, and require fusion. Here, we present three cases of AHF that failed anterior arthrodesis warranting repeat ... Read more >>

Surg Neurol Int (Surgical Neurology International)
[2020, 11:52]

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Inverse National Trends in Decompressive Craniectomy versus Endovascular Thrombectomy for Stroke.

Nicolas K Khattar, Beatrice Ugiliweneza, Enzo M Fortuny, Shawn W Adams, Kimberly S Meyer, Mayur Sharma, Dengzhi Wang, Thomas R Chandler, Maxwell Boakye, Robert F James, Dale Ding,

OBJECTIVE:Endovascular thrombectomy (ET) for acute large vessel occlusion reduces infarct size, and it should hypothetically decrease the incidence of major ischemic strokes requiring decompressive craniectomy (DC). The aim of this retrospective cohort study is to determine trends in the utilization of ET versus DC for stroke in the United States ... Read more >>

World Neurosurg (World neurosurgery)
[2020, 138:e642-e651]

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Demographics and Outcomes of Spine Surgery in Octogenarians and Nonagenarians: A Comparison of the National Inpatient Sample, MarketScan and National Surgical Quality Improvement Program Databases.

Siddharth Bhargava, Mayur Sharma, Nicholas Dietz, Joseph Dettori, Beatrice Ugiliweneza, Miriam Nuno, Maxwell Boakye, Doniel Drazin,

Introduction Despite the increasing use of national databases to conduct spine research, questions remain regarding their study validity and consistency. This study tested for similarity and inter-database reliability in reported measures between three commonly used national databases. Methods International Classification of Diseases, 9th edition (ICD-9) codes were used to identify ... Read more >>

Cureus (Cureus)
[2019, 11(11):e6195]

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Letter to editor regarding "Management of perineural (Tarlov) cysts: a population-based cohort study and algorithm for the selection of surgical candidates".

Mayur Sharma, Maxwell Boakye,

Acta Neurochir (Wien) (Acta neurochirurgica)
[2020, 162(1):129-130]

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A Two-decade Assessment of Changing Practice for Surgical Decompression and Fixation after Traumatic Spinal Cord Injury - Impact on Healthcare Utilization and Cost.

Beatrice Ugiliweneza, James Guest, April Herrity, Miriam Nuno, Mayur Sharma, Jennifer Beswick, Nicholas Dietz, Ahmad Alhourani, Dengzhi Wang, Doniel Drazin, Maxwell Boakye,

Early surgery after traumatic spinal cord injury (TSCI) has been associated with a greater neurological recovery and reduced secondary complications. In this study, we aimed to evaluate the trend of early TSCI surgery (within 24 hours) over two decades and the effect on length of hospitalization, complications, and hospital charges. We extracted ... Read more >>

Cureus (Cureus)
[2019, 11(11):e6156]

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Long-Term Comparison of Health Care Utilization and Reoperation Rates in Patients Undergoing Cervical Disc Arthroplasty and Anterior Cervical Discectomy and Fusion for Cervical Degenerative Disc Disease.

Chitra Kumar, Nicholas Dietz, Mayur Sharma, Dengzhi Wang, Beatrice Ugiliweneza, Maxwell Boakye,

BACKGROUND:Thus study was a retrospective cohort analysis. Anterior cervical discectomy and fusion (ACDF) has been the gold-standard procedure for single-level degenerative disc disease (DDD). Recently, cervical disc arthroplasty (CDA) has become increasingly prevalent as an alternative intervention. OBJECTIVE:To examine the long-term costs and reoperation rates associated with CDA and ACDF ... Read more >>

World Neurosurg (World neurosurgery)
[2020, 134:e855-e865]

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Ninety-Day Bundled Payment Reimbursement for Patients Undergoing Anterior and Posterior Procedures for Degenerative Cervical Radiculopathy.

Ahmad Alhourani, Mayur Sharma, Beatrice Ugiliweneza, Dengzhi Wang, Miriam Nuño, Doniel Drazin, Maxwell Boakye,

BACKGROUND:Anterior cervical discectomy with fusion (ACDF) or posterior cervical foraminotomy (PCF) are the mainstay surgical treatment options for patients with degenerative cervical radiculopathy (DCR). OBJECTIVE:To compare 90-d bundled payments between ACDF and PCF for DCR in a cohort study. METHODS:Data were extracted from MarketScan database (2000-2016) using ICD-9, ICD-10, and ... Read more >>

Neurosurgery (Neurosurgery)
[2019, 85(5):E851-E859]

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Impact of Surgical Timing and Approaches to Health Care Utilization in Patients Undergoing Surgery for Acute Traumatic Cervical Spinal Cord Injury.

Mayur Sharma, Nicholas Dietz, Beatrice Ugiliweneza, Dengzhi Wang, Nicolas K Khattar, Shawn W Adams, Tyler Ball, Maxwell Boakye,

Objective Acute traumatic cervical spinal cord injury (AcSCI) causes significant morbidity and has an impact on health care utilization. The aim of our study was to analyze health care utilization in patients undergoing surgical decompression and fusion for AcSCI based on timing and type of surgical approaches.  Patient and methods ... Read more >>

Cureus (Cureus)
[2019, 11(11):e6166]

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Health Care Utilization and Payments of Postoperative and Drug Abuse-Related Spinal Infections.

Ahmad Alhourani, Nicholas Dietz, Mayur Sharma, Beatrice Ugiliweneza, Dengzhi Wang, Miriam Nuño, Doniel Drazin, Maxwell Boakye,

STUDY DESIGN:Retrospective analysis of data extracted from the MarketScan database (2000-2016) using International Classification of Diseases (ICD)-9, ICD-10, and Current Procedural Terminology-4 codes. OBJECTIVE:Evaluate the economic costs and health care utilization associated with spine infections. SUMMARY OF BACKGROUND DATA:Spinal infections (SI) are associated with significant morbidity and mortality. A recent ... Read more >>

Spine (Spine)
[2019, 44(20):1449-1455]

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Simulating Episode-Based Bundled Payments for Cranial Neurosurgical Procedures.

Zachary Medress, Beatrice Ugiliweneza, Jonathon Parker, Dengzhi Wang, Eric Burton, Maxwell Boakye, Stephen Skirboll,

BACKGROUND:Episode-based bundled payments were introduced by Medicare in 2013 as the Bundled Payments for Care Improvement (BPCI) in order to improve care coordination and cost efficiency. BPCI has not yet been applied to cranial neurosurgical procedures. OBJECTIVE:To determine projected values of episode-based bundled payments when applied to common cranial neurosurgical ... Read more >>

Neurosurgery (Neurosurgery)
[2020, 87(1):86-95]

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ECG Gating Is More Precise Than Peripheral Pulse Gating When Quantifying Spinal CSF Pulsations Using Phase Contrast Cine MRI.

Robert J Bert, Neesha Settipalle, Dheeraj Muddasani, Emily Tiwana, Brandon Wellman, Mohammad J Negahdar, Frank Mihlon, Amir Amini, Maxwell Boakye,

PURPOSE:To compare accuracy of spinal cerebrospinal fluid (CSF) pulsatile flow measurements at cervical, thoracic, and lumbar levels using Phase Contrast Cine MRI (PCCMRI) with retrospective electrocardiogram (recg) vs. retrospective peripheral pulse gating (rppg) gating. METHODS:We scanned 10 healthy volunteers, ages 23-46 years, using external recg-gated or rppg-gated 2D PCCCMRI at ... Read more >>

Acad Radiol (Academic radiology)
[2020, 27(4):552-562]

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Feasibility of Bundled Payments in Anterior, Middle, and Posterior Cranial Fossa Skull Base Meningioma Surgery: MarketScan Analysis of Health Care Utilization and Outcomes.

Mayur Sharma, Beatrice Ugiliweneza, Maxwell Boakye, Noberto Andaluz, Brian J Williams,

BACKGROUND:The aim of our study was to compare the health care utilization and outcomes after surgery for anterior cranial fossa skull base meningioma (AFM), middle cranial fossa skull base meningioma (MFM), and posterior cranial fossa skull base meningioma (PFM) across the United States. METHODS:We queried the MarketScan database using International ... Read more >>

World Neurosurg (World neurosurgery)
[2019, 131:e116-e127]

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Enhanced Recovery After Surgery (ERAS) for Spine Surgery: A Systematic Review.

Nicholas Dietz, Mayur Sharma, Shawn Adams, Ahmad Alhourani, Beatrice Ugiliweneza, Dengzhi Wang, Miriam Nuño, Doniel Drazin, Maxwell Boakye,

BACKGROUND:Enhanced recovery after surgery (ERAS) represents an evidence-based multidisciplinary approach to perioperative management after major surgery that decreases complications and readmissions and improves functional recovery. Spine surgery is a traditionally invasive intervention with an extended recovery phase and may benefit from ERAS protocol integration. METHODS:We analyzed the use of ERAS ... Read more >>

World Neurosurg (World neurosurgery)
[2019, 130:415-426]

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The Natural History of Cervical Spondylotic Myelopathy and Ossification of the Posterior Longitudinal Ligament: A Review Article.

Zaid Aljuboori, Maxwell Boakye,

Cervical spondylotic myelopathy (CSM) is the chronic and slow deterioration of cervical spinal cord function. The pathophysiology of this condition is multifactorial, including compression, repetitive trauma, and vascular compromise of the spinal cord. Clinically, it presents as a progressive decline in patients' appendicular neurological function. The natural history of this ... Read more >>

Cureus (Cureus)
[2019, 11(7):e5074]

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The relationships among spinal CSF flows, spinal cord geometry, and vascular correlations: evidence of intrathecal sources and sinks.

Robert J Bert, Neesha Settipalle, Emily Tiwana, Dheeraj Muddasani, Ruponti Nath, Brandon Wellman, Frank Mihlon, Mohammadjavad Negahdar, Amir Amini, Maxwell Boakye,

We studied relationships of cerebral spinal fluid (CSF) pulsatile flow at cervical, thoracic, and lumbar levels using phase-contrast cine MRI (PCCMRI) to determine the following: 1) instantaneous and average net flows at cervical, thoracic, and lumbar levels, 2) stochastic correlations of CSF flow with major arterial supplies and major draining ... Read more >>

Am. J. Physiol. Regul. Integr. Comp. Physiol. (American journal of physiology. Regulatory, integrative and comparative physiology)
[2019, 317(3):R470-R484]

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Estimation of average treatment effects among multiple treatment groups by using an ensemble approach.

Xiaofang Yan, Younathan Abdia, Somnath Datta, K B Kulasekera, Beatrice Ugiliweneza, Maxwell Boakye, Maiying Kong,

In observational studies, generalized propensity score (GPS)-based statistical methods, such as inverse probability weighting (IPW) and doubly robust (DR) method, have been proposed to estimate the average treatment effect (ATE) among multiple treatment groups. In this article, we investigate the GPS-based statistical methods to estimate treatment effects from two aspects. ... Read more >>

Stat Med (Statistics in medicine)
[2019, 38(15):2828-2846]

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Differences in clinical outcomes and health care utilization between octogenarians and nonagenarians following decompression for lumbar spinal stenosis. A market scan analysis.

Mayur Sharma, Nicholas Dietz, Beatrice Ugiliweneza, Dengzhi Wang, Doniel Drazin, Maxwell Boakye,

OBJECTIVE:Lumbar spinal stenosis (LSS) in octogenarians and beyond has a significant impact on quality of life requiring surgical decompression and hence impact on health care utilization. Risk of surgical failure and impact on health care resources is always a concern in this patient population (more so in nonagenarians). The aim ... Read more >>

Clin Neurol Neurosurg (Clinical neurology and neurosurgery)
[2019, 182:63-69]

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Root cause analysis of epidural spinal cord stimulator implant infections with resolution after implementation of an improved protocol for surgical placement.

Forest W Arnold, Sarah Bishop, David Johnson, LaShawn Scott, Crystal Heishman, Leah Oppy, Tyler Ball, Mayur Sharma, Claudia Angeli, Christie Ferreira, Yangsheng Chen, Susan Harkema, Maxwell Boakye,

Background:Placing a spinal stimulator for the purpose of restoring paralysed function is a novel procedure; however, paralysis predisposes people to infection. Preventing surgical site infections is critical to benefit this population. Objective:The objective of this study was to review the root cause analysis of postoperative wound infections by a hospital ... Read more >>

J Infect Prev (Journal of infection prevention)
[2019, 20(4):185-190]

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A systematic comparative outcome analysis of surgical versus percutaneous techniques in the management of symptomatic sacral perineural (Tarlov) cysts: a meta-analysis.

Mayur Sharma, Pooja SirDeshpande, Beatrice Ugiliweneza, Nicholas Dietz, Maxwell Boakye,

OBJECTIVESymptomatic perineural or Tarlov cysts (TCs) are a rare cause of chronic low-back pain. Given the rarity of the disease, there is no literature consensus regarding the optimal management of these cysts.METHODSThe authors conducted a systematic comparative outcome analysis of symptomatic TCs treated with surgery (group A, 32 studies, n ... Read more >>

J Neurosurg Spine (Journal of neurosurgery. Spine)
[2019, :1-12]

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