Medicine and Health Sciences Commons^™

Laparoscopic Repair Of Pediatric Femoral Hernias: A Scoping Review, Alex Chen, Spencer Wilhelm, Michael Sobolic, Begum Akay, Pavan Brahmamdam, Nathan Novotny

Conference Presentation Abstracts

No abstract provided.

Biportal Endoscopic Spine Surgery For Lumbar Laminectomy And Discectomy: Post-Operative Outcomes And Surgical Learning Curve, Matthew Lipphardt, Philip Zakko, Ali Jawad, Daniel Park, Maximillian Lee

Conference Presentation Abstracts

Background/Introduction

Biportal endoscopic spine surgery (BESS) is a minimally invasive spinal surgery which has gained increased traction for lumbar laminectomy and discectomy. To justify the transition from tubular or open surgery to BESS, BESS outcomes and surgical learning curve should be known. The primary goal of this study is to evaluate rates of complications with BESS as well as how these rates change with increased surgeon experience, especially in the US environment.

Materials/Methods

A United States Fellowship trained orthopaedic surgeon's clinical practice database was interrogated for consecutive patients who underwent BESS at a single institution. Patients aged greater than 18 …

Osteoporosis Is Underdiagnosed And Undertreated In Patients With Fragility Femoral Neck And Vertebral Compression Fractures, Philip Zakko, Lauren Eberhardt, Madeline Declercq, Ahyoung Park, Megan Audet, Daniel Park

Conference Presentation Abstracts

Background/Introduction

Femoral neck (FNF) and vertebral compression fractures (VCF) are common fragility fractures (FF) in the elderly population. Defined as fractures from low-energy trauma, FF are diagnostic of osteoporosis and require treatment. The purpose of this study was to assess whether patients were appropriately diagnosed and treated for osteoporosis following fragility FNF and VCF.

Materials/Methods

A retrospective chart review was performed at a single-institution from 1/1/2017 to 12/31/2020 on consecutive patients who sustained fragility FNF treated with closed reduction percutaneous pinning, hemiarthroplasty, or total hip arthroplasty or VCF treated with kyphoplasty. Patients <50 years of age, who sustained a high-energy or a non-osteoporotic pathologic fracture, were treated non-operatively, or deceased within one-year post-op were excluded. Preoperative demographics, ASA, CCI, smoking, alcohol, and glucocorticoid use were obtained. Diagnosis and treatment of osteoporosis, including dual-energy X-ray absorptiometry (DEXA) scans, calcium, vitamin D, bisphosphonates, denosumab, and alternative treatments (teriparatide, calcitonin, raloxifene, estrogen) were assessed pre-op and within one-year post-op. Subsequent FF were recorded.

Results

Of 593 patients, 276 FNF and 94 …

A Retrospective Evaluation Of External Rotation At 0 Degree And 90 Degrees Of Abduction After Atrhoscopic Latarjet Procedure, Michael E. Bodine, Shariff K. Bishai, Guy Ball, Cameron King, Lydia Wait, Grace Brannan

Conference Presentation Abstracts

BACKGROUND: Several papers have shown that shoulder stabilizing procedures, including the Latarjet procedure, lead to postoperative external rotation (ER) deficits. However, no study on arthroscopic Latarjet procedures has investigated the effect on ER when the arm is abducted at 0° and 90°. This study examined the relationship between the arthroscopic Latarjet procedure and the subsequent effect on external rotation at both 0° and 90° of abduction compared to the contralateral extremity. METHODS: Records of patients who underwent an arthroscopic Latarjet Procedure from December 2015 to April 2021 were retrospectively evaluated for this study. Requirements included both a three- and six-month …

Public Perception Of Robotic-Assisted Total Hip Replacement Surgery, James E. Feng, Marvee Espiritu, Phillip Vartanyan, Drew Moore, Robert Runner, Mark Karadsheh

Conference Presentation Abstracts

PURPOSE: Computer-assisted and robotic (CA/R) total hip arthroplasty (THA) has gained considerable attention due to its superior accuracy and precision. However, few studies have evaluated the public’s understanding and appraisal of this technology. Here, we evaluate the public’s initial perception of technology-assisted compared to traditional THA, and if interactive education may alter an individual’s preferences. MATERIALS & METHODS: A prospective cohort study was developed utilizing a 48-question, paid survey distributed via a clinically validated, public, online marketplace in April 2022. After collecting baseline demographics and knowledge regarding THA, participants were queried whether they would prefer a CA/R THA or traditional …

Eliminating Barriers To Prosthetic Use Following Lower Extremity Amputation, Matthew Laskovy, Graham Long, Samuel Osei, Jonathon Murdock, Diane Studzinski, Rose E. Callahan, Otto W. Brown

Conference Presentation Abstracts

OBJECTIVES: Approximately 60,000 lower extremity amputations (LEA) are performed annually in the United States and 38%-55% of those individuals are fitted for a prosthesis. The average price of a lower extremity prosthetic device alone is $10,000, not including the associated costs of physical therapy and prosthetic fitting and maintenance. The most important factor influencing quality of life for individuals who have undergone LEA is the ability to ambulate with a prosthesis. The goal of our study was to investigate characteristics of individuals who abandon use of their prosthesis following LEA and identify any modifiable factors that may increase long-term successful …

Shorter Length Of Stay And Increased Return To Work With Cervical Disc Arthroplasty Versus Anterior Cervical Discectomy And Fusion, Philip Zakko, Alex Miller, Daniel K. Park, Jad Khalil

Conference Presentation Abstracts

INTRODUCTION: Anterior cervical discectomy and fusion (ACDF) and cervical disc arthroplasty (CDA) are established surgical options for the treatment of cervical radiculopathy, myelopathy, and cervical degenerative disc disease. However, current literature does not demonstrate a clear benefit between ACDF or CDA. The primary objective of this study is to compare the outcomes of ACDF and CDA for patients enrolled in the Michigan Spine Surgery Improvement Collaborative (MSSIC) database. Secondary objectives include assessment of early complications, procedural/perioperative outcomes, and patient-reported outcome measures after both ACDF and CDA. METHODS: Patients undergoing 1 or 2 level ACDF or CDA surgery were included. A …

Analysis Of The Effects Of Intraoperative Neurophysiological Monitoring On Anterior Cervical Surgery: A Michigan Spine Surgery Improvement Collaborative (Mssic) Study, Conner D. Ahlgren, Philip Zakko, Andrew Zachary Blankenship, Daniel K. Park

Conference Presentation Abstracts

INTRODUCTION: The utility of intraoperative neurophysiological monitoring (IOM) for anterior cervical surgery remains controversial. Despite insufficient evidence demonstrating a clear benefit, IOM continues to be utilized and in some areas is considered standard of care. The aim of this study was to evaluate the effects of IOM on anterior cervical surgery outcomes by utilizing data from the Michigan Spine Surgery Improvement collaborative. METHODS: Anterior cervical surgeries from February 2014 to November 2019 were included for analysis. IOM (EMG, MMG, SSEPs, or MEP) was the primary variable examined. Primary outcome measures were: new weakness after surgery, new radicular symptoms, return to …

Assessing General Vs. Spinal Anesthesia As A Risk Factor For 90-Day Emergency Department Visits Status-Post Index Total Knee Arthroplasty: A Retrospective Case Control Study, Ian Penvose, Helen E. Huetteman, James Feng, Robert Runner, Drew Douglas Moore, Mark S. Karadsheh

Conference Presentation Abstracts

INTRODUCTION: As bundle payment care initiatives become ever prevalent in total knee arthroplasty (TKA), institutions have increasingly focused on cost-saving measures which maintain or improve upon the standard of care. One area of interest is identifying potential modifiable and non-modifiable risk factors. Here we evaluate the correlations of general versus spinal anesthesia in TKAs in perioperative outcomes. METHODS: All primary TKAs between 7/1/2013 to 12/31/2017 were obtained retrospectively from a prospective institutional database utilized for contribution to a state-wide joint arthroplasty database. Prospective data includes baseline demographics, select medical comorbidities, intraoperative variables and postoperative course/complications. Patients were separated into two …

Pedicle Screw-Associated Violation Of The Adjacent Unfused Facet Joint: Clinical Outcomes And Fusion Rates, Nathan J. Sinz, David Hanwuk Kim, Raymond W. Hwang, Gyu-Ho Lee, Kevin Charles Baker, Rick C. Sasso, Daniel K. Park, Jeffrey S. Fischgrund, Ruijia Niu

Conference Presentation Abstracts

INTRODUCTION: Lumbar spine pedicle screws are the most commonly utilized implants for providing immediate spinal stability during fusion surgery. Ideal pedicle screw positioning includes avoiding violation of any adjacent unfused facet joints. Nevertheless, inadvertent screw malposition and screw-associated violation of adjacent facet joints (FJV) remains a potential complication of the procedure regardless of whether surgery is performed in open fashion or with minimally invasive techniques and despite the use of intraoperative imaging or surgical navigation. Given the proximity of the lumbar vertebral pedicle to the proximal facet joint, FJV occurs almost exclusively at the level of the proximal as opposed …

Assessing Public Reported Perceptions Of Hand Surgery Provided In The Office Vs. An Ambulatory Surgery Center, Trevor Tooley, James Feng, Jannat Khan, Paul Scott Shapiro

Conference Presentation Abstracts

INTRODUCTION: There is a growing body of literature supporting the efficacy, safety, and benefits of wide awake office-based low risk hand surgery. Procedures such as a carpal tunnel release are now, under the right clinical circumstances, being performed in the office-setting as opposed to a traditional operating room. While there is growing evidence supporting technique, procedure room setup, and cost analyses of office-based surgery, there is little investigation into the public perceptions of having surgery done in the office. Here we sought to evaluate public perceptions of undergoing low risk hand surgery in the office setting. METHODS: A prospective survey …

Assessing Risk Factors For 90-Day Emergency Department Visits Status-Post Index Total Knee Arthroplasty: A Retrospective Case Control Study, Ian Penvose, Helen E. Huetteman, James Feng, Robert Runner, Drew Douglas Moore, Mark S. Karadsheh

Conference Presentation Abstracts

INTRODUCTION: With the increasing adoption of value-based healthcare initiatives in total knee arthroplasty (TKA), a greater emphasis has been placed on implementing cost-saving measures while maintaining or improving quality of care. One area of interest has been postoperative ED visits. Here we evaluate potential risk factors for 90-day ED visits. METHODS: This is a case control study from a large, tertiary, private, academic institution. All primary TKAs between 7/1/2013 to 12/31/2017 were obtained retrospectively from a prospective institutional database utilized for contribution to a state-wide joint arthroplasty database. All patient charts were subsequently verified and reviewed for all-cause 90-day ED …

Responsive Neurostimulation (Rns) Of The Centromedian Nucleus Of The Thalamus For The Treatment Of Drug Resistant Idiopathic Generalized Epilepsy, Angelique Manasseh, Hannah Guider, Brooklynn Bondy, Ayman Haykal, Nour Baki, Ashleigh Terrell, Michael Staudt, Christopher Parres, Andrew Zillgitt

Conference Presentation Abstracts

Rationale: Idiopathic generalized epilepsy (IGE) accounts for approximately one-third of all epilepsies. The majority of people with IGE achieve seizure-freedom from treatment with anti-seizure medications (ASM). However, up to 25% of people with IGE continue to experience seizures despite adequate ASM trials. In patients with drug resistant IGE, neuromodulation with responsive neurostimulation (RNS) in the bilateral centromedian nucleus (CMN) of the thalamus may be an effective treatment option. Methods: Five patients with drug resistant IGE were evaluated through the Beaumont Adult Comprehensive Epilepsy Center and underwent an epilepsy presurgical evaluation including video-EEG monitoring in the epilepsy monitoring unit, brain MRI, …

Obstetric Complications And Wellbeing Among Us Surgical Residents, Ruojia Li, Joshua Eng, Darci C. Foote, Christine Wu, Julie Johnson, Sarah Easter, Karl Bilimoria, Yue-Yung Hu, Erika Rangel

Conference Presentation Abstracts

No abstract provided.

The Competitive Edge: Improving Absite Scores Through A Team-Based Approach, Sean Masters, Kathryn Howard, Darci Foote, Diane Studzinski, Rose E. Callahan, Felicia Ivascu, Begum Akay

Conference Presentation Abstracts

Introduction: A competitive team-based approach to encourage self-studying and didactic participation is a novel method of American Board of Surgery In-Training Examination (ABSITE) preparation. We aimed to determine if this method significantly improves residents’ percentile performances on the ABSITE. Methods: We reviewed ABSITE performance and preparation from general surgery residents for the last ten years. Percentile scores were compared before and after implementation of a purchased online question bank (TrueLearn LLC, Mooresville, NC), a team-based competition, and a virtual format of the team-based competition. Statistical analysis was performed with ANOVA Kruskal-Wallis and Mann Whitney tests where appropriate. Results: 378 ABSITE …

Let Them Play: A Prospective Study Of Postoperative Activity Restrictions In Children, Rachel Harvey, Diane Studzinsk, Angela England, Robert Morden, Nathan M. Novotny, Anthony Stallion, Begum Akay

Conference Presentation Abstracts

No abstract provided.

How Program Directors Understand General Surgery Resident Wellness, Darci C. Foote, Julie Evans, Tedi Engler, Alisha Lussiez

Conference Presentation Abstracts

No abstract provided.

Resident Labor Unions: A Mechanism For Agency Or Conflict, Darci C. Foote, Daniela Amórtegui, Carlos Diaz, Brian Brajcich, Karl Y. Bilimoria, Yue-Yung Hu, Julie K. Johnson

Conference Presentation Abstracts

No abstract provided.

The Impact Of Contact Sports: A Marker Of Grit Among General Surgery Residents, Darci C. Foote, John N. Donkersloot, Bridger Rodoni, Samantha Baker, Niki Matusko, Quintin Solano

Conference Presentation Abstracts

No abstract provided.

Hydrogel Matrix Human Stem Cell Based Nucleus Pulposus Intervertebral Disc Regeneration, Mick J. Perez-Cruet, Siddharth Ramanathan, Rasul Chaudhry, Leon Chieng, Christina Mckee, Aaron Rapp

Conference Presentation Abstracts

Introduction

Degenerative disc disease (DDD) is one of the leading causes of chronic debilitating low back pain. DDD is characterized by changes in cellular characteristics resulting in loss of extracellular matrix(ECM) water holding capacity of the nucleus pulposus(NP). DDD can lead to translation of physiological loads from the anterior 2/3 of the spinal column to the posterior 1/3, resulting in increased stress on the facets and ligamentum flavum causing facet hypertrophy and canal stenosis. Novel stem cell regenerative therapies could restore the anterior column load via NP regeneration.

Methods

A hydrogel scaffold was created composed of self-assembling polyethylene glycol(PEG) functionalized …

Spontaneous Pneumomediastinum In Children Is Not Associated With Esophageal Perforation, Kevin Roby, Catherine Barkach, Diane Studzinsk, Nathan M. Novotny, Begum Akay, Pavan Brahmamdam

Conference Presentation Abstracts

Purpose: We hypothesized that esophageal perforation is not a common etiology for spontaneous pneumomediastinum (SPM), and that SPM is a self-limited disease not requiring routine admission. Methods: We performed a retrospective review of patients, ages 0 to 21 years, diagnosed with SPM in one hospital system (five hospitals) from 2009 – 2019. Cases were identified using ICD9 and 10 codes and confirmed through chart review. Cases were excluded for trauma, severe infections, or subsequent development of SPM after admission for a separate diagnosis. Data regarding patient characteristics, diagnostic tests, and outcomes were collected, and summary statistics were performed. Results: We …

Lumbar Motion Is Maintained With Paraspinous Tension Band For Degenerative Spondylolisthesis: Results From 24-Month Fda Study, Kee D. Kim, Rick Sasso, Serena Hu, Alan Villavicencio, S Tim Yoon, William Lavelle, Harvinder Sandhu, Hyun Bae, Jeffrey Fischgrund, Mick Perez-Cruet

Conference Presentation Abstracts

Introduction

Durable outcome for degenerative spondylolisthesis (DS) usually requires decompression and fusion. Fusion, however, places greater stress at adjacent levels with increased incidence of adjacent segment disease. A novel interspinous tension band is proposed for segmental stabilization after decompression for DS, as an alternative to fusion. An FDA IDE study (NCT03115983) compares decompression and stabilization with the tension band (treatment group) to decompression and transforaminal interbody instrumented fusion (control group) for symptomatic DS.

Methods

Prospectively enrolled IDE study subjects with 24 months postoperative radiographic follow-up were included in this analysis. X-rays obtained during the follow-up period for both the treatment …

Causes Of Early Hip Revision Vary By Age And Sex: Analysis Of Data From A Statewide Quality Registry, Jacob F. Markel, John A. Driscoll, Richard Hughes, Jamers Verner, Thomas Zheng, Brian Halstrom, David C. Markel

Conference Presentation Abstracts

INTRODUCTION: While THA is extremely successful, early failures do occur. The purpose of this study was to determine the cause of revision in specific patient demographic groups at three timepoints to improve quality. The data should guide treatment regimens and implant choice. METHODS: Data for cases performed between 2012 and 2018 from a statewide, quality improvement arthroplasty registry was used. The database included 79,205 THA cases and 1,433 revisions with identified etiology (1,584 total). All revisions performed at < 5 years from the primary THA were reviewed. Six groups: men/women, <65, 65-75, and >75 years, were compared at revision timepoints <6 mo, <1 year, and <5 years. RESULTS: There were obvious and significant differences between subgroups based on demographics and timepoints (p<.0001). The most common etiologies within 1 year (961 revisions) were: fracture (324, 33.7%), dislocation (235, 24.5%) and infection (164, 17.0%). 756 (78%) of the 1-year revisions occurred within 6 months, the vast majority within 6 weeks. At this early timepoint, the most common revision cause was fracture for all groups and ages (316, 42%) ranging from 27.6% in young men to 60% in older women. Joint instability became the leading cause for revision after 6 months in younger women whereas for younger men infection became the primary issue. The most striking finding was the incidence of fracture as the leading cause of revision at all time points for both men and women >75 years. CONCLUSION: This quality project demonstrated clinically significant differences in the reason for THA …

Augmented Immunomodulation Of Endogenous Marrow-Derived Stem Cells In The Setting Of Acl Rupture, Mackenzie Fleischer, Michael Newton, Samantha Hartner, John A. Driscoll, Anthony Arveschoug, Chritopher C. Vasileff, Kevin Baker

Conference Presentation Abstracts

PURPOSE: Augmentation of MSC immunomodulation is an unexplored, potentially useful therapeutic to combat PTOA following ACLR. Lower kynurenine-to-tryptophan ratios observed in synovial fluid of ACL rupture (ACLR) rats suggests decreased activity of tryptophan metabolizing enzyme, Ido, known to be secreted by MSCs to promote T-reg expansion and Th17 suppression. This study aims to characterize the immunomodulatory capacity of pharmacologically mobilized MSCs in conjunction with exogenously delivered Ido. METHODS: Rats (N = 48) underwent ACLR to evaluate the effects of mobilized MCSs on Ido1 and inflammatory cytokine expression profiles in the synovial fluid. Additionally, rats (N = 160) underwent ACLR to …

Impact Of The Mental Skills Curriculum On Stress Response Of Surgical Residents Performing A Simulated Task, Andrew Angus, Kathryn K. Howard, Harkirat Jawanda, Kathryn M. Ziegler, Victoria Roach

Conference Presentation Abstracts

No abstract provided.

P118. Colonic Stent Presenting With Stent Impaction And Erosion Through The Colonic Wall, Benjamin Randall Hart, Jon Hain

Conference Presentation Abstracts

Background: Colonic stenting has been shown to be effective as a palliative measure in colorectal cancer when

patients present with obstructing symptoms. However, its efficacy when used for complications of colonic anastomoses are less well-studied. We present a case report of an elderly gentleman with a colonic stent placed for anastomotic stricture, which led to stent migration stent impaction with erosion in the sigmoid colon.

A 92-year-old gentleman presented to the ED with several days worth of nausea and vomiting. He had recently undergone a partial colectomy with an ileocolonic anastomosis approximately one year prior and then had a covered …

National Trends And Survival Outcomes Of Performing Immediate Breast Reconstruction For Male Breast Cancer Patients, Neha Sarvepalli, Nayana Dekhne, Mohamad Sebai, Patrick Karabon

Conference Presentation Abstracts

INTRODUCTION: Immediate breast reconstruction after a mastectomy was reported in 43.3% of female patients in 2014; and has been associated with improved quality of life and adherence to adjuvant therapies. While there are many studies regarding immediate breast reconstruction in women, little has been reported about reconstruction rates and outcomes in male breast cancer. The purpose of this study is to examine the trends and outcomes of performing Immediate Breast Reconstruction (IBR) in male breast cancer (MBC) patients following a mastectomy. METHODS: The National Cancer Database (NCDB) registry from 2004 to 2014 was used to identify non-metastatic MBC patients who …

Variability And Outcomes Of Medical And Lifestyle Management Of Peripheral Arterial Disease At The Time Of Lower Extremity Bypass, Ryan Howard, Jeremy Albright, Matthew Corriere, Nicholas Osborne, Eugene Laveroni, Peter Henke

Conference Presentation Abstracts

Background: First-line treatment of peripheral arterial disease (PAD) involves medical therapy and lifestyle modification. Specifically, the 2016 American Heart Association/American College of Cardiology guidelines for the management of PAD make Class I recommendations for antiplatelet therapy, statin therapy, antihypertensive therapy, and cilostazol therapy, as well as exercise therapy and smoking cessation. Although evidence supports medical and lifestyle management of PAD before surgical intervention, it is currently unclear whether clinical practice reflects this. Moreover, it is also unknown whether variability in medical and lifestyle optimization before revascularization affects short- and long-term outcomes. This study was conducted to determine the proportion of …

Robotic Spleen Preserving Distal Pancreatectomy (Warshaw Techniqe) In A 12-Year-Old Female., Rachel Harvey, Begum Akay, Pavan Brahmamdam

Conference Presentation Abstracts

Solid pseudopapillary neoplasm (SPN) of the pancreas is a rare entity seen in young females. Complete surgical resection is often curative. This video shows a robotic spleen preserving distal pancreatectomy for a SPN in a 12-year-old female using the Warshaw technique. This technique preserves the short gastric and left gastroepiploic vessels allowing for splenic survival after ligation of the splenic vessels. This video demonstrates the feasibility of using the robot to perform this procedure in a pediatric patient. MRI at 18 months follow up showed that the spleen was completely perfused, with no evidence of recurrence or metastasis.

Laparoscopic Assisted Robotic Radical Prostatectomy With Pelvic Lymph Node Dissection Using Viable Cryopreserved Umbilical Tissue To Improve Cavernosal Nerve Function., Joshua Volin, Brett Watson, Lior Kopel, Samantha Kraemer, Jason Hafron

Conference Presentation Abstracts

Radical prostatectomy is the preferred treatment for patients with clinically localized prostate cancer and is typically performed using a robotic approach. Surgical techniques that preserve the neurovascular bundle minimize the risk of incontinence and erectile dysfunction post-operatively. Umbilical cord tissue is a relatively new technique, which has been shown to reduce inflammation and promote regenerative healing. In this video we show a robotic radical prostatectomy with bilateral nerve sparing technique utilizing a cryopreserved umbilical cord allograft nerve wrap.