Medical Specialties Commons^™

An International Phantom Study Of Inter-Site Variability In Technetium-99m Image Quantification: Analyses From The Target Radioembolization Study, Grace Keane, Rob Van Rooij, Marnix Lam, S Cheenu Kappadath, Bilal Kovan, Stephanie Leon, Matthew Dreher, Kirk Fowers, Hugo De Jong

Faculty, Staff and Student Publications

BACKGROUND: Personalised multi-compartment dosimetry based on [

RESULTS: Regarding the LSF, inter-site variation with planar site-specific protocols was minimal, as determined by comparing computed LSF between sites (interquartile range 9.6-10.1%). A standardised protocol did not improve variation (interquartile range 8.4-9.0%) but did improve mean accuracy compared to the site-specific protocols (5.0% error for standardised protocol vs 8.8% error for site-specific protocols). Regarding the CRC, inter-system variation was notable for site-specific SPECT protocols and could not be improved by the standardised protocol (CRC interquartile range for 37 mm sphere 0.5-0.7 and 0.6-0.8 respectively), however the standardised protocol did improve accuracy of …

Hyperoxia-Induced Mir-195 Causes Bronchopulmonary Dysplasia In Neonatal Mice, Patrick Philpot, Fred Graumuller, Nicole Melchiorre, Varsha Prahaladan, Xander Takada, Srinarmadha Chandran, Melissa Guillermo, David Dickler, Zubair H Aghai, Pragnya Das, Vineet Bhandari

Department of Pediatrics Faculty Papers

Background: Exposure to hyperoxia is an important factor in the development of bronchopulmonary dysplasia (BPD) in preterm newborns. MicroRNAs (miRs) have been implicated in the pathogenesis of BPD and provide a potential therapeutic target. Methods: This study was conducted utilizing a postnatal animal model of experimental hyperoxia-induced murine BPD to investigate the expression and function of miR-195 as well as its molecular signaling targets within developing mouse lung tissue. Results: miR-195 expression levels increased in response to hyperoxia in male and female lungs, with the most significant elevation occurring in 40% O₂ (mild) and 60% O₂ (moderate) BPD. …

Catheter-Based Fetal Cardiac Interventions, Betul Yilmaz Furtun, Shaine Alaine Morris

Faculty, Staff and Students Publications

Fetal cardiac intervention (FCI) is an emerging and rapidly advancing group of interventions designed to improve outcomes for fetuses with cardiovascular disease. Currently, FCI is comprised of pharmacologic therapies (e.g., trans-placental antiarrhythmics for fetal arrhythmia), open surgical procedures (e.g., surgical resection of pericardial teratoma), and catheter-based procedures (e.g., fetal aortic valvuloplasty for aortic stenosis). This review focuses on the rationale, criteria for inclusion, technical details, and current outcomes of the three most frequently performed catheter-based FCI procedures: (1) aortic valvuloplasty for critical aortic stenosis (AS) associated with evolving hypoplastic left heart syndrome (HLHS), (2) atrial septal intervention for HLHS with …

Utilization Of Indocyanine Green (Icg) Fluorescence In Patients With Pediatric Colorectal Diseases: The Current Applications And Reported Outcomes., Elizaveta Bokova, Ismael Elhalaby, Seth Saylors, Irene Isabel P. Lim, Rebecca M. Rentea

Manuscripts, Articles, Book Chapters and Other Papers

In pediatric colorectal surgery, achieving and visualizing adequate perfusion during complex reconstructive procedures are paramount to ensure postoperative success. However, intraoperative identification of proper perfusion remains a challeng. This review synthesizes findings from the literature spanning from January 2010 to March 2024, sourced from Medline/PubMed, EMBASE, and other databases, to evaluate the role of indocyanine green (ICG) fluorescence imaging in enhancing surgical outcomes. Specifically, it explores the use of ICG in surgeries related to Hirschsprung disease, anorectal malformations, cloacal reconstructions, vaginal agenesis, bladder augmentation, and the construction of antegrade continence channels. Preliminary evidence suggests that ICG fluorescence significantly aids in …

Development Of Takotsubo Cardiomyopathy In 46-Year-Old With Refractory Crohn's Disease, Margarita Pipinos, Andrea Klooz, Maria E. Tecos, Andrew Kamien

Graduate Medical Education Research Journal

Rampant autoimmune disease has the potential to ravage the entirety of the body in a systemic fashion. Rarely, it has been reported for Takotsubo cardiomyopathy develop as a result of refractory inflammatory bowel disease. Balancing the comprehensive cares required to support both the cardiovascular system and treat the underlying autoimmune condition care present unique challenges. Here, we describe a patient who developed late-onset Takotsubo cardiomyopathy after prolonged systemic stress as a result of uncontrolled Crohn’s disease. While this patient unfortunately did succumb to the disease process, it is our hope that highlighting these rare cases may progress care for future …

Pediatric Body Mass Index (Bmi) And Distal Radius Fracture Incidence, Jessica Avila, Tyler Hough, Nikalus Skipp, Amber L. West, Deana Mercer

Western Journal of Orthopaedics

Background: The authors postulate that obesity in children increases the risk of distal radius fracture compared to children who are not obese. Because it is difficult to determine the population at risk, the authors observed the inverse of the rate of obesity in pediatric patients with distal radius fractures in an attempt to determine if there was a difference compared to national data on frequency of obesity in the pediatric population in general. If the rate of obesity was greater in distal radius fractures than the overall population, this would constitute evidence that obesity may increase the risk of distal …

Reverse Palmaris Longus Involving Guyon’S Canal Causing Ulnar Nerve Compression, David Peberdy, Sameer Gujral

Western Journal of Orthopaedics

The authors present a case of reverse palmaris longus muscle (RPLM) with consequential compression of the ulnar nerve within Guyon’s canal. They report clinical findings, investigations, including magnetic resonance imagining and functional assessments, and intraoperative findings. The authors found improved sensory and motor function following excision of RPLM. There are few previous case reports regarding RPLM and concomitant compression of the ulnar nerve within Guyon’s canal.

Rehabilitation Medicine In Rural New Mexico And Beyond, Rebecca A. Dutton

Western Journal of Orthopaedics

No abstract provided.

Outcomes Of Hemiepiphysiodesis For Juvenile Hallux Valgus: A Systematic Review, Karim Gaber, Faran Chaudhry, Ihtisham Ahmad, Emmanuel Olaonipekun, Waleed Kishta

Western Journal of Orthopaedics

Juvenile hallux valgus (JHV) is a common deformity of the forefoot that may result in significant pain and discomfort. To correct JHV, percutaneous, or minimally invasive surgeries have become more popular than open surgeries due to reductions in morbidity. One of these procedures is percutaneous hemiepiphysiodesis. The aim of this study was to evaluate the efficacy of percutaneous hemiepiphysiodesis for JHV by investigating the available literature on the procedure.

In this systematic review, the authors’ search strategy identified 91 studies, but only five met the inclusion criteria. The identified studies included 76 patients and 132 feet. There was an improvement …

Change In Posterior Tibial Slope And Patellar Height During Medial Opening Wedge High Tibial Osteotomy: A Retrospective Cohort Study, Jessica A. Nelson, Brandon M. Painter, Dustin L. Richter, Jennifer S. Weaver, Robert C. Schenck

Western Journal of Orthopaedics

Background: Medial opening wedge high tibial osteotomy (MOWHTO) may be indicated for patients who have varus alignment, medial knee pain, and medial knee compartment osteoarthritis. Another indication for MOWHTO is in patients with a history of recurrent anterior cruciate ligament (ACL) deficiency or failed ACL reconstruction (ACLR) with varus alignment. Some patients have MOWHTO combined with a primary or revision ACLR.

Methods: This is a retrospective case series that was approved by the Institutional Review Board at the authors’ institution. The purpose of this series is to report on average coronal plane alignment, posterior tibial slope (PTS), and patellar height …

Does Matching Humeral Version In Anatomic Shoulder Arthroplasty Affect Postoperative Range Of Motion? A Pilot Study, Shane Johns, William Curtis, Nicholas Newcomb, Ryan Dahlberg, Christopher Shultz

Western Journal of Orthopaedics

Background: While considerable focus has been given to address glenoid morphology and version in anatomic total shoulder arthroplasty (TSA), there has been little attention paid to the potential impacts of humeral version on postoperative outcomes. The purpose of this study is to assess the impact of matching native humeral version on postoperative range of motion (ROM) after anatomic TSA.

Methods: All anatomic TSAs performed by a single surgeon between September 2021 and June 2023 were retrospectively reviewed. Patients undergoing TSA for fracture and/or revision TSA were excluded. This study group consisted of 20 patients whose native humeral version was measured …

Synovial Fluid Inflammatory Profiles Did Not Differ Between Isolated Anterior Cruciate Ligament And Multi-Ligament Knee Injuries, Cale A. Jacobs, Robert C. Schenck Jr., Leorrie A. Watson, Caitlin E.W. Conley, Darren L. Johnson, Austin V. Stone, Christian Lattermann, Dustin L. Richter

Western Journal of Orthopaedics

Background: Postoperative arthrofibrosis is more common following surgical treatment of multi-ligament knee injury (MLKI) than isolated anterior cruciate ligament (ACL) injury. It has been proposed that the increased prevalence of postoperative arthrofibrosis after MLKIs may be due to increased inflammation secondary to greater trauma to the joint. The purpose of this study was to compare synovial concentrations of pro-inflammatory and anti-inflammatory cytokines between patients with MLKI and ACL injuries.

Methods: Synovial fluid was aspirated from the operative knee at the time of surgery from 14 patients with MLKI and 10 patients with isolated ACL injury. Structures injured, the time between …

Full Issue, Arianna Medina

Western Journal of Orthopaedics

No abstract provided.

Long-Term Success In Managing Midfoot Lateral Column Arthritis: A Case Report, Damian Fountain, Cesar Cardenas, Nicholas Brady, Katherine Gavin, Richard Miller

Western Journal of Orthopaedics

The lateral column of the midfoot is crucial for midfoot mobility and foot stability. Although there are several nonoperative treatment options for arthritis that is isolated to the lateral column cuboid-metatarsal joints, there is a lack of consensus on the best operative intervention, given the rare nature of the disease. The patient in this case initially presented to clinic in 2007 with a significant history of lateral midfoot pain in the fourth and fifth metatarsal cuboid region. Despite nonoperative interventions, her symptoms progressed, and in January of 2009, she elected to undergo interpositional arthroplasty of left fourth and fifth metatarsal …

Isolated Rotational Dislocation Of The Talus: A Case Report, Tomas Holy, Nicholas Newcomb, Devin Maez, Christopher Paiz, Samer Kakish

Western Journal of Orthopaedics

A 46-year-old man sustained a closed pantalar dislocation in a high-speed motor vehicle ejection. The patient underwent closed reduction and splinting with subsequent open reduction and external fixation to ensure anatomic reduction of the tibiotalar, talonavicular, and subtalar joints, resulting in a pain free ankle with improving range of motion. In an effort to minimize the significantly morbid complications, such as avascular necrosis of the talus and rapid onset post-traumatic arthritis, treatment of closed pantalar dislocations should be performed in an emergent manner to minimize damage to the extensive articular surface and tenuous blood supply to the talus.

Chondroblastoma Of The Calcaneus Treated With Femoral Head Allograft Reconstruction For Subtalar Arthrodesis In A Skeletally Immature Patient: A Case Report, Benjamin B. Blanco, Ryan Dahlberg, David H. Chafey

Western Journal of Orthopaedics

Chondroblastomas are rare, benign, primary bone tumors most seen in men within their second decade of life in the epiphyseal/apophyseal region of long bones. Only a few cases of disease in the calcaneus have been reported previously, with treatment generally involving surgical curettage and local adjuvants. Recurrence rates can be as high as 38.0%, especially in a lesion near the physis or in skeletally immature patients. The authors present the case of a 14-year-old boy with active calcaneal chondroblastoma that was successfully treated with curettage, allograft reconstruction, and subtalar arthrodesis. The patient is now two years postoperative with no evidence …

Why You Should Use The New Ota Open Fracture Classification (Ofc3), Thomas A. Decoster, Meir Marmor

Western Journal of Orthopaedics

Open fracture classification has traditionally used a modified Gustilo Classification (GOFC). There are many recognized problems with the Gustilo classification. The Orthopaedic Trauma Association (OTA) produced an open fracture Classification (OTA OFC) in 2010 to overcome problems with GOFC. However, it has not been widely adapted, partially because there are too many categories. The OTA OFC has proven to be more effective in identifying particular parameters that affect outcome and treatment for open fractures than GOFC. Numerous authors have called for a reconciliation of the two classifications. The OTA Classification Committee has proposed a modification called the OTA OFC3, which …

Comparison Of Helicopter And Ground Interfacility Transport On Time-To-Treatment Of Isolated Open Fractures, Jerry Speight Grimes, Duke Appiah

Western Journal of Orthopaedics

Background: Helicopter emergency medical services have become an integral part of trauma systems. When appropriately utilized, helicopter transport can improve the outcomes of trauma patients. The objective of this study was to determine if helicopter transport for interfacility transfers was effective in reducing time-to-treatment for isolated open fractures in the setting of a rural Level I trauma center. The authors hypothesized that helicopter transportation of isolated open fractures would not reduce time to definitive fixation.

Methods: All patients treated with isolated open fractures over a four-year period at a Level I trauma center were identified. In this study, the authors …

Radiographic Identification And Treatment Prioritization Of Pediatric Elbow Fractures, Hoang M. Nguyen, Bryce Clinger, Casey Slattery, Selina R. Silva, Patrick Bosch

Western Journal of Orthopaedics

Background: Constituting approximately 15.0% of fractures, pediatric elbow fractures often require surgical intervention. Accurate diagnosis in pediatric patients is challenging, demanding proficient radiographic expertise. Initial diagnosis falls to emergency medicine (EM) physicians and pediatricians, who may lack sufficient radiographic training. Previous research by Shrader found a 58.0% accuracy in non-academic EM physicians for pediatric elbow fractures. The purpose of the study is to build on Shrader’s work and assess orthopaedic surgery (OS), pediatric, EM, and residents’ ability to accurately interpret pediatric elbow radiographs.

Methods: OS, EM, and pediatric residents at a Level 1 trauma center in an academic institution examined …

Neuroarthropathy And Workers’ Compensation Denials In Healthcare, Jerry Speight Grimes

Western Journal of Orthopaedics

Background: Neuroarthropathy is a complication of peripheral neuropathy commonly associated with diabetes mellitus. The actual trigger for a neuroarthropathy episode is unknown. If the inciting event occurred at work, causality of neuroarthropathy is difficult to determine.

Methods: In this study, the authors retrospectively reviewed workers’ compensation claims to identify patients with diabetes mellitus, peripheral neuropathy, and neuroarthropathy. The correlation between their health status and claims status was reported. The number of workers’ compensation denials for services already performed were compared between the groups.

Results: Over a five-year period, 412 patients were evaluated in a tertiary foot and ankle clinic with …

Cross-Tasking In Surgery: An Efficient Method To Perform Multiple Tasks In Parallel, Jacob Sanchez, Robert C. Schenck Jr., Lillian J. Schenck, Urvij Modhia, Gehron Treme, Samer Kakish, Deana Mercer, Daniel C. Wascher, Dustin L. Richter

Western Journal of Orthopaedics

Multitasking is defined as the ability to perform more than one task or activity simultaneously, which can be inefficient, unsafe, and should be avoided when applied to surgery. Cross-tasking is a concept where processes can be safely performed in parallel. The authors present cross-tasking as a useful approach to surgical procedural task subsets, timing of parallel tasks, and combining parallel tasks when performing a specific orthopaedic operation. The authors use the examples of an anterior cruciate ligament reconstruction and complex spinal deformity correction to review the pearls and pitfalls of models that manage multiple simultaneous surgical and educational tasks. This …

Back Matter, Arianna Medina

Western Journal of Orthopaedics

No abstract provided.

Front Matter, Arianna Medina

Western Journal of Orthopaedics

No abstract provided.

A Multicenter Study Of Venetoclax-Based Treatment For Patients With Richter Transformation Of Chronic Lymphocytic Leukemia, Paul J Hampel, Mahesh Swaminathan, Kerry A Rogers, Erin M Parry, Jan A Burger, Matthew S Davids, Wei Ding, Alessandra Ferrajoli, Jonathan M Hyak, Nitin Jain, Saad S Kenderian, Yucai Wang, William G Wierda, Jennifer A Woyach, Sameer A Parikh, Philip A Thompson

Faculty, Staff and Student Publications

Patients with chronic lymphocytic leukemia (CLL) who develop Richter transformation (RT) have a poor prognosis when treated with chemoimmunotherapy regimens used for de novo diffuse large B-cell lymphoma. Venetoclax, a BCL2 inhibitor, has single-agent efficacy in patients with RT and is potentially synergistic with chemoimmunotherapy. In this multicenter, retrospective study, we evaluated 62 patients with RT who received venetoclax-based treatment outside of a clinical trial, in combination with a Bruton tyrosine kinase inhibitor (BTKi; n=28), rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone (R-CHOP) (n=13), or intensive chemoimmunotherapy other than R-CHOP (n=21). The best overall and complete response rates were 36%/25%, 54%/46%, and …

Loss Of Lpar6 And Cab39l Dysregulates The Basal-To-Luminal Urothelial Differentiation Program, Contributing To Bladder Carcinogenesis, Sangkyou Lee, Jolanta Bondaruk, Yishan Wang, Huiqin Chen, June Goo Lee, Tadeusz Majewski, Rachel D Mullen, David Cogdell, Jiansong Chen, Ziqiao Wang, Hui Yao, Pawel Kus, Joon Jeong, Ilkyun Lee, Woonyoung Choi, Neema Navai, Charles Guo, Colin Dinney, Keith Baggerly, Cathy Mendelsohn, David Mcconkey, Richard R Behringer, Marek Kimmel, Peng Wei, Bogdan Czerniak

Faculty, Staff and Student Publications

We describe a strategy that combines histologic and molecular mapping that permits interrogation of the chronology of changes associated with cancer development on a whole-organ scale. Using this approach, we present the sequence of alterations around RB1 in the development of bladder cancer. We show that RB1 is not involved in initial expansion of the preneoplastic clone. Instead, we found a set of contiguous genes that we term "forerunner" genes whose silencing is associated with the development of plaque-like field effects initiating carcinogenesis. Specifically, we identified five candidate forerunner genes (ITM2B, LPAR6, MLNR, CAB39L, and ARL11) mapping near RB1. Two …

Spontaneous Spinal Cord Infarction: A Systematic Review, Maria Gharios, Vasilios Stenimahitis, Victor Gabriel El-Hajj, Omar Ali Mahdi, Alexander Fletcher-Sandersjöö, Pascal Jabbour, Magnus Andersson, Claes Hultling, Adrian Elmi-Terander, Erik Edström

Department of Neurosurgery Faculty Papers

BACKGROUND AND OBJECTIVES: Spontaneous spinal cord infarction (SCInf) is a rare condition resulting in acute neurological impairment. Consensus on diagnostic criteria is lacking, which may present a challenge for the physician. This review aims to analyse the current literature on spontaneous SCInf, focusing on epidemiology, the diagnostic process, treatment strategies and neurological outcomes.

METHODS: The study was performed in accordance with a previously published protocol. PubMed, Web of Science and Embase were searched using the keywords 'spontaneous', 'spinal cord', 'infarction' and 'ischaemic'. The eligibility of studies was evaluated in two steps by multiple reviewers. Data from eligible studies were extracted …

Smoking Cessation After Initial Treatment Failure With Varenicline Or Nicotine Replacement: A Randomized Clinical Trial, Paul M Cinciripini, Charles E Green, Sanjay Shete, Jennifer A Minnix, Jason D Robinson, Yong Cui, Seokhun Kim, George Kypriotakis, Diane Beneventi, Janice A Blalock, Francesco Versace, Maher Karam-Hage

Faculty, Staff and Student Publications

Importance: Most people who smoke do not quit on their initial attempt.

Objective: To determine the best subsequent strategy for nonabstinence following initial treatment with varenicline or combined nicotine replacement therapy (CNRT).

Design, setting, and participants: Using a double-blind, placebo-controlled, sequential multiple assignment randomized trial, 490 volunteers were randomized to receive 6 weeks of varenicline or CNRT. After 6 weeks, nonabstainers were rerandomized to continue, switch, or increase medication dosage for 6 additional weeks. The study was conducted from June 2015 through October 2019 in a Texas tobacco treatment clinic.

Interventions: The initial treatment was 2 mg/d of varenicline or …

Noncontrast Ct Selected Thrombectomy Vs Medical Management For Late-Window Anterior Large Vessel Occlusion, Thanh N Nguyen, Raul G Nogueira, Muhammad M Qureshi, Simon Nagel, Jean Raymond, Mohamad Abdalkader, Jelle Demeestere, João Pedro Marto, Sunil A Sheth, Volker Puetz, Anne Dusart, Patrik Michel, Marc Ribo, Osama O Zaidat, James E Siegler, Diogo C Haussen, Daniel Strbian, Hilde Henon, Mahmoud H Mohammaden, Markus A Möhlenbruch, Marta Olive-Gadea, Ajit S Puri, Simon Winzer, Johannes Kaesmacher, Piers Klein, Liisa Tomppo, Francois Caparros, João Nuno Ramos, Mouhammad A Jumaa, Syed F Zaidi, Nicolas Martinez-Majander, Stefania Nannoni, Lieselotte Vandewalle, Flavio Bellante, Mudassir Farooqui, Sergio Salazar-Marioni, Pekka Virtanen, Daniel P O Kaiser, Anke Wouters, Rita Ventura, Jessica Jesser, Adnan Mujanovic, Liqi Shu, Alicia C Castonguay, Zain Mansoor, Zhongming Qiu, Hesham E Masoud, Manuel Requena, Erno Peltola, Wei Hu, Eugene Lin, Kanta Tanaka, Charlotte Cordonnier, Daniel Roy, Shadi Yaghi, Davide Strambo, Hiroshi Yamagami, Urs Fischer, Tudor G Jovin, Robin Lemmens, Peter A Ringleb, Santiago Ortega-Gutierrez

Faculty, Staff and Student Publications

Background and objectives: There is uncertainty whether patients with large vessel occlusion (LVO) presenting in the late 6-hour to 24-hour time window can be selected for endovascular therapy (EVT) by noncontrast CT (NCCT) and CT angiography (CTA) for LVO detection. We evaluated the clinical outcomes of patients selected for EVT by NCCT compared with those medically managed in the extended time window.

Methods: This multinational cohort study was conducted at 66 sites across 10 countries. Consecutive patients with proximal anterior LVO stroke selected for EVT by NCCT or medically managed and presenting within 6-24 hours of time last seen well …

Differentiation Syndrome Associated With Treatment With Idh2 Inhibitor Enasidenib: Pooled Analysis From Clinical Trials, Pau Montesinos, Amir T Fathi, Stéphane De Botton, Eytan M Stein, Amer M Zeidan, Yue Zhu, Thomas Prebet, Carlos E Vigil, Iryna Bluemmert, Xin Yu, Courtney D Dinardo

Faculty, Staff and Student Publications

Treatment with enasidenib, a selective mutant isocitrate dehydrogenase isoform 2 (IDH2) inhibitor, has been associated with the development of differentiation syndrome (DS) in patients with acute myeloid leukemia (AML). Studies on the incidence and clinical features of DS are limited in this setting, and diagnosis is challenging because of nonspecific symptoms. This study assessed the incidence, diagnostic criteria, risk factors, and correlation with clinical response of DS based on the pooled analysis of 4 clinical trials in patients with IDH2-mutated AML treated with enasidenib as monotherapy, or in combination with azacitidine or with chemotherapy. Across the total AML population, 67 …

Cosmetic Penile Enhancement Procedures: An Smsna Position Statement, Landon Trost, Daniel N Watter, Serge Carrier, Mohit Khera, Faysal A Yafi, Helen L Bernie, Matthew Ziegelmann, Tobias Köhler

Faculty, Staff and Students Publications

Background: Penile cosmetic enhancement procedures have been performed for many years with varying success. However, they have historically been relegated to niche areas of sexual medicine, with limited data, and have not achieved mainstream adoption. More recently, the topic has been increasingly discussed within academic congresses due to availability of novel techniques, therapies, and procedures. Given their distinctive nature, the Sexual Medicine Society of North America (SMSNA) felt that it was pertinent to develop formal position statements to help guide both patients and sexual medicine providers on the current state of the scientific literature and to give recommendations for future …