Publications by authors named "Sam Jiang"

Study Design: A retrospective case-control study.

Purpose: To understand the risk factors for prolonged hospitalization following anterior cervical discectomy and fusion (ACDF) to reduce postoperative complications and better identify optimal candidates for elective ACDF.

Overview Of Literature: Despite the proven safety of ACDF, many patients may experience prolonged postoperative hospitalization.

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Background: Epidural hematomas (EDH) pose life-threatening risks with considerable morbidity and mortality if left untreated. The prognosis for patients with low-severity acute EDH managed conservatively is variable, with limited understanding of risk factors. This study aims to identify clinical risk factors for mortality in low-severity acute epidural hematoma patients managed conservatively, helping clinicians recognize cases where deviation from conservative management may be necessary.

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Background And Objectives: Patients with intracranial gunshot wounds (IC-GSWs) often present with severe neurological injuries requiring prompt neurological evaluation. Neurosurgical intervention is reserved for those with reasonable chances of survival. Handguns and long guns, such as shotguns and rifles, have differing mechanisms of injury which may influence surgical candidacy and outcomes.

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Objective: Second cervical vertebrae (C2) fractures are a common traumatic spinal injury in the elderly population. Surgical fusion and nonoperative bracing are two primary treatments for cervical instability, but the former is often withheld in the elderly due to concerns for poor postoperative outcomes arising from patient frailty. This study sought to evaluate the in-hospital differences in mortality, outcomes, and discharge disposition in elderly patients with C2 fractures undergoing surgical intervention compared with conservative therapy.

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Study Design: This was a retrospective case-control study using 8 years of data from a nationwide database of surgical outcomes in the United States.

Purpose: This study aimed to improve our understanding of the risk factors associated with a length of stay (LOS) >1 day and aid in reducing postoperative hospitalization and complications.

Overview Of Literature: Despite the proven safety of transforaminal lumbar interbody fusion (TLIF), some patients face prolonged postoperative hospitalization.

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Objective: We sought to identify trends in the number of female neurosurgeons across each state and identify state characteristics that affect such values.

Methods: The Physician Compare National Downloadable File was queried from the Center for Medicare & Medicaid Services for 2017 and 2023. Physicians indicating "neurosurgery" as their primary specialty were extracted and duplicates were removed.

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Objective: Central cord syndrome (CCS) is a traumatic cervical spine injury that is treated with surgical decompression. In octogenarians (80-89), surgeons often opt for conservative management instead due to fears of postoperative complications and prolonged recovery times. This study aims to assess the in-hospital complications and outcomes in octogenarians undergoing surgery compared to those undergoing nonsurgical management for CCS.

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Objectives: In vivo magnetic resonance spectroscopy (MRS) was used to investigate neurometabolic homeostasis in children with functional neurological disorder (FND) in three regions of interest: supplementary motor area (SMA), anterior default mode network (aDMN), and posterior default mode network (dDMN). Metabolites assessed included N-acetyl aspartate (NAA), a marker of neuron function; myo-inositol (mI), a glial-cell marker; choline (Cho), a membrane marker; glutamate plus glutamine (Glx), a marker of excitatory neurotransmission; γ-aminobutyric acid (GABA), a marker of inhibitor neurotransmission; and creatine (Cr), an energy marker. The relationship between excitatory (glutamate and glutamine) and inhibitory (GABA) neurotransmitter (E/I) balance was also examined.

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Objective: The aim of this study was to assess demographic and racial disparities in incidence, treatment, and survival of adults with metastatic malignancy to the brain.

Methods: Using the Surveillance, Epidemiology, and End Results (SEER) Program database, the authors identified adults with nonprimary brain metastases between 2010 and 2019. Incidence was calculated for all 10 years while data from 2010 to 2014 were used for survival analysis.

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Objective: The use of anticoagulation to prevent venous thromboembolism (VTE) is controversial in the setting of neurosurgical decompression for traumatic subdural hematoma (SDH). In these patients, there is concern that anticoagulation may cause secondary hemorrhage, increasing the risk of death and other complications. Patients with a history of anticoagulant use are at further risk of VTE, but the effect of VTE prophylaxis (VTEP) following neurosurgery for SDH has not been thoroughly investigated in this population.

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Purpose: Workplace injury is a commonplace occurrence in the USA. Spine injuries are especially devastating as they can cause chronic pain and limit mobility which prevents patients from returning to work. Gaining a better understanding of the patients, mechanisms, and treatments associated with these injuries can aid in improving outcomes.

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Objective: Cervical cord syndrome (CCS) is the most common type of incomplete spinal cord injury. Prompt surgical decompression within 24 hours increases neurologic function and rates of home discharge. Racial disparities exist in spinal cord injury, with Black patients experiencing longer lengths of stay and higher rates of complications than in White patients.

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Introduction: Optimal fixation method between cemented, cementless, and hybrid techniques for total knee arthroplasty (TKA) is still debated. The purpose of this study is to evaluate the clinical outcomes of patients undergoing cemented versus cementless TKA.

Methods: We reviewed 168 patients who underwent a primary TKA at a single academic institution between January 2015 and June 2017.

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Mortality following a severe burn is influenced by both patient- and injury-factors, and a number of predictive models have been developed or applied. As there is no consensus on the optimal formula to use, we aimed to investigate the predictive value of the revised Baux score in comparison to other models when determining mortality risk in patients with burn injuries. A systematic review was performed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement.

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Background: As the literature grows on opioid use, the impact of simultaneous cannabis use has hitherto been mostly unexplored. In this study, we assessed the effects of cannabis use on postoperative opioid utilization in opioid-naive patients undergoing single level fusions of the lumbar spine.

Methods: Using an all-payer claims database, the medical records of 91 million patients were analyzed to identify patients who had undergone single level lumbar fusions between January 2010 and October 2020.

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Introduction: Several strategies have been shown to have some efficacy in the chronically infected total knee arthroplasty (TKA): chronic antibiotic suppression, a second two-stage revision, arthrodesis, and above-the-knee amputation (AKA). We conducted a systematic review to determine the efficacy of these treatments in patients who had previously received a two-stage revision.

Methods: A systematic review of the literature was performed which investigated PubMed, Embase, Scopus, and Web of Science Databases.

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Background: Before being evaluated by a physician, more than 50% of patients will search their symptoms on the Google search engine. In fact, Google was the engine used for nearly 90% of all online searches between 2016 and 2018. These search data are stored by Google and can be investigated through google extended trends for health (GETH).

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Background And Purpose: The purpose was to explore the effects of transcutaneous trigeminal nerve stimulation (TNS) on neurochemical concentrations (brainstem, anterior cingulate cortex [ACC], dorsolateral prefrontal cortex [DLPFC], ventromedial prefrontal cortex [VMPFC], and the posterior cingulate cortex [PCC]) using ultrahigh-field magnetic resonance spectroscopy.

Methods: This double-blinded study tested 32 healthy males (age: 25.4 ± 7.

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Objective: COVID-19 disrupted public transit and led to increased reliance on alternative modes of transportation (AMTs) internationally. This study hypothesizes that public interest and fracture injuries associated with AMTs increased during COVID-19 in the United States.

Methods: Monthly Google search probabilities and the number of fracture injuries associated with bicycles, scooters, skateboards/longboards, rollerblades, electric bicycles, and electric micromobility vehicles were collected from January 2017 to December 2021.

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Introduction: Meaningful participation in surgery is important for orthopaedic resident education. This study aimed to quantify the effect of fellows on resident surgical experience. We hypothesized that as fellowship programs expanded, resident caseload would decrease, whereas "double-scrubbed" cases would increase.

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Background: Although current guidelines do not recommend the routine use of surgical antibiotic prophylaxis to reduce the risk of surgical site infection following clean, soft tissue hand surgery, antibiotics are nevertheless often used in patients with an existing joint prosthesis to prevent periprosthetic joint infection (PJI), despite little data to support this practice.

Questions/purposes: (1) Is clean, soft tissue hand surgery after THA or TKA associated with PJI risk? (2) Does surgical antibiotic prophylaxis before hand surgery decrease PJI risk in patients with recent THA or TKA?

Methods: We assessed all patients who underwent THA or TKA between January 2007 and December 2015 by retrospective analysis of the IBM® MarketScan® Databases, which provide a longitudinal view of all healthcare services used by a nationwide sample of millions of patients under commercial and supplemental Medicare insurance coverage-particularly advantageous given the relatively low frequency of hand surgery after THA/TKA and of subsequent PJI. The initial search yielded 940,861 patients, from which 509,896 were excluded for not meeting continuous enrollment criteria, having a diagnosis of PJI before the observation period, or having another arthroplasty procedure before or during the observation period; the final study cohort consisted of 430,965 patients of which 147,398 underwent THA and 283,567 underwent TKA.

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Background: Bisphosphonates reduce the risk of fractures associated with osteoporosis but increase the risk of atypical subtrochanteric femur fractures. After unilateral atypical femur fracture, there is risk of contralateral fracture, but the indications for prophylactic fixation are controversial.

Questions/purposes: The purpose of this study is to use Markov modeling to determine whether contralateral prophylactic femur fracture fixation is cost-effective after a bisphosphonate-associated atypical femur fracture and, if so, what patient-related factors may influence that determination.

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Objective: To determine how the utilization of open versus percutaneous treatment of posterior pelvic ring injuries in early-career orthopaedic surgeons has changed over time.

Methods: Case log data from surgeons testing in the trauma subspecialty for part II of the American Board of Orthopaedic Surgery examination from 2003 to 2015 were evaluated. Current procedural terminology codes for percutaneous fixation (27216) and open fixation (27218) of the posterior pelvic ring were evaluated using a regression analysis.

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Background: Antibiotic prophylaxis is a common but controversial practice for clean soft tissue procedures of the hand, such as carpal tunnel release or trigger finger release. Previous studies report no substantial reduction in the risk of surgical site infection (SSI) after antibiotic prophylaxis, yet are limited in power by low sample sizes and low overall rates of postoperative infection.

Questions/purposes: Is there evidence that antibiotic prophylaxis decreases the risk of SSI after soft tissue hand surgery when using propensity score matching to control for potential confounding variables such as demographics, procedure type, medication use, existing comorbidities, and postoperative events?

Methods: This retrospective analysis used the Truven Health MarketScan databases, large, multistate commercial insurance claims databases corresponding to inpatient and outpatient services and outpatient drug claims made between January 2007 and December 2014.

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