Musculoskeletal System Commons^™

Temporomandibular Joint Osteoarthritis And Systemic Inflammation: A Cadaveric Study For Dental Insights, Nathan Kent Bs, David Patterson Bs, Alyssa Luu Bs, Samantha Pipkin Bs, Jason Ciccotelli Dpt, Phd, Jeremy James Dmd, Ms, Jessica Immonen Phd, Ms

The Journal of Integrative Physiology

The objective of this study was to determine if gross signs of cadaveric osteoarthritis (OA) have

a tendency to present systemically and if this presentation includes pathology found at the

temporomandibular joint (TMJ). Signs of OA were then correlated to gross alterations of the aorta and common carotid arteries seen with atherosclerotic cardiovascular disease. Ipsilateral synovial joints including the TMJ, knee joint, radiocarpal joint and trapeziometacarpal (TMC) joint were all assessed for signs of OA in 4 cadaveric donors (3 males; 72, 82 and 92 years-old / 1 female; 89 years-old) using a validated scale of disease severity. A Grade …

Evaluating Quadrupedal Locomotion In Bats: A Geometric Morphometric Comparison Of Vertebral Adaptations Across Mammals, Jessica Upham

Electronic Theses and Dissertations

Flight is the primary locomotion of bats, while quadrupedal locomotion is not often observed and is widely variable among bats. Frugivorous bats in Pteropodidae are more efficient climbers than frugivorous bats in Phyllostomidae and insectivorous bats in Vespertilionidae, while phyllostomids and vespertilionids are better at walking on horizontal surfaces. The aim of this study is to investigate whether bats with differing modes of nonflight locomotion also exhibit disparity in thoracolumbar vertebral morphology. Using geometric morphometrics, we compared the thoracolumbar vertebral shapes of these bat families with other terrestrial and arboreal mammals. The results revealed distinct vertebral shapes among bat families …

The Articularis Genu As A Surrogate For Structural Determinants Of Peri-Articular Myopenia In Osteoarthritis, Davis Martin, José A.Cruz Ayala, Mary C. Gatterer, Tara Soria, Ryan Schroeder, Vinod Dasa, Luis Marrero

School of Medicine Faculty Publications

The functional limitations associated with the painful stiffness of knee osteoarthritis (kOA) can affect the muscles of the knee, such as the quadriceps femoris (QF) and articularis genu (AG). The vastus medialis oblique (VMO) of the QF complex is particularly sensitive to kOA. The AG, which can be sampled during total knee arthroplasty (TKA) for kOA, can provide information about the condition of the QF when affected by patient-reported disuse, helping to identify indicators of muscle weakness in the synovial fluid. This study compares the structural and gene expression changes between the VMO and the AG collected from patients with …

The Evolvement Of The 100 Most Cited Articles In Spine Surgery In The Last Decade Compared To All-Time, Mark Miller, Matthew Meade, Ruchir Nanavati, William T Diciurcio, Maneesha Palakurthi, Adam Kohring, Justin Le, Christopher Giuditta, Christopher Kepler, Barrett Woods

Rowan-Virtua School of Osteopathic Medicine Departmental Research

BACKGROUND: Decision-making in spine surgery is continuously shaped by advancements in the field through evidence-based medicine. This is demonstrated through the evolution of the quality and impact of scientific research within the field of spine surgery. To date, there is limited literature investigating interval changes in methodological rigor of scientific investigation within the field of spine surgery.

METHODS: The top 100 cited articles were recorded for manuscripts from January 1, 2013, to December 31, 2023, and the top 100 most cited manuscripts of all time for spine surgery, via the Scopus abstract and citation database. Data collected included year of …

The Influence Of Intrinsic Foot Muscles In Modulating Foot Shape Relative To Substrate And The Efficacy Of Different Strengthening Approaches, Luke R. Lotsis

Masters Theses, 2020-current

Cross-sloped surfaces create an asymmetrical substrate for foot contact, introducing a slip force within the transverse plane and a gravitational pull within the coronal plane that increases the tendency to topple downslope. To maintain stability, the foot must make structural adjustments across the hindfoot, midfoot, forefoot, and hallux. In chapter 1, I investigated how IFMs respond to varying substrate conditions and balance demands, providing insight into their functional role in maintaining stability and adapting foot structure in static and dynamic locomotor tasks. Twenty-four healthy adults participated in a series of dynamic walking trials on flat, cross-sloped and sandy substrates and …

Functional Electrical Stimulation For Foot Drop: A Narrative Review, Garrett R. Watson

Honors Thesis

Foot drop (FD) is a neuromuscular impairment that limits ankle dorsiflexion during walking. It often leads to unsafe gait patterns, increases the risk of falls, and reduces independence. Functional electrical stimulation (FES) has emerged as a promising rehabilitation tool that activates muscles or nerves to improve foot clearance and support motor recovery. Unlike passive devices such as ankle-foot orthoses, FES promotes active neuromuscular engagement and may foster long-term improvements through neuroplastic adaptation. This narrative review examines the causes and clinical consequences of FD and evaluates the role of FES in restoring functional mobility. Key topics include FES technologies, stimulation parameters, …

Establishing The Dose-Response Effect Of Myofascial Release On Muscle Physiology, Sanjana Davuluri, Seth Spicer, Tyler Pigott

Rowan-Virtua Research Day

Context: Osteopathic manipulative treatment (OMT) is often indicated for back pain due to its high tolerability and post-treatment improvement in patients’ self-reported pain and functionality. Specifically, myofascial release (MFR) has been found to yield a significant improvement in both symptoms and quality of life. Until recently, there has not been much data published about the quantifiable effect of MFR and other OMT modalities on muscle physiology, especially taking treatment dose and force into consideration. Therefore, quantifying the changes in muscle characteristics through myotonometry would greatly benefit the field of osteopathic medicine in order to create more personalized treatment plans …

The Relationship Between Running Cadence And Stress Fractures In Competitive Distance Runners, Jason A. Richwall

Rowan-Virtua Research Day

Running is one of the most popular sports and forms of exercise worldwide. Stress fractures are a common and potentially season-ending injury among competitive distance runners, with recurrence rates as high as 22%. Biomechanical factors, including running cadence, have been implicated in injury risk, but their precise role remains an area of active investigation. This literature review examines the relationship between cadence and stress fractures, drawing data from both observational and experimental studies. Observational studies suggest that low cadence and rearfoot striking are associated with increased risk of bone stress injuries. Experimental studies reinforce these findings, demonstrating that increased cadence …

The Use Of Intramedullary Screw For Fixation Of Distal Ulnar Fractures, Adam Lencer, John Pignataro, Justin Le, Joyce Daniel Suarez, Michael Rivlin

Rowan-Virtua Research Day

Background

Distal ulna fractures frequently accompany distal radius fractures but are often underappreciated in both clinical and research contexts. While conservative management is frequently employed, particularly following volar locking plate (VLP) fixation of the radius, certain indications, such as distal radioulnar joint (DRUJ) instability, comminution, or high-energy trauma, may necessitate surgical fixation. This study evaluates patient-reported outcomes among patients with distal radius fractures treated operatively, comparing those with and without concomitant distal ulna fractures, and further stratifying based on the method of ulna fixation.

Methods

This retrospective review included 477 patients treated operatively for distal radius fractures by a single …

Incidence, Risk Factors, And Clinical Outcomes Of Heterotropic Ossification Following Reverse Shoulder Arthroplasty, Adam Friedman, Clarence Clark Ii, Jaylyn Thompson

Rowan-Virtua Research Day

Introduction: Heterotropic ossification (HO) is the pathologic formation of bone in soft tissue, often following trauma or surgery. HO is a common radiographic finding after reverse shoulder arthroplasty (RSA), yet its incidence, risk factors, and clinical significance remains under-explored. Despite the relatively high incidence, the etiology, risk factors, and functional outcomes are not understood.

Methods: This is a literature review to understand the incidence, risk factors, and clinical outcomes of HO following RSA. Pubmed, Embase, and Web of Science were the databases used to review nine peer-reviewed sources. No restrictions were placed on publication date due to the sparsity of …

Does Sports-Specialization Increase The Risk Of Injury In Youth Athletes?, Kinjal Shah

Rowan-Virtua Research Day

Sports specialization, defined as intensive, year-round training in a single sport for more than eight months per year, has become increasingly prevalent among youth athletes. While it is often pursued with the goal of elite performance, early specialization may increase the risk of both physical injuries and psychological strain. This risk is especially pronounced in individual sports such as swimming and tennis, where early and focused training is frequently encouraged. This study explores the association between early sports specialization and injury risk in young athletes, with the goal of identifying contributing factors and informing prevention strategies. Evidence suggests that while …

Periprosthetic Femur Fractures After Total Hip Arthroplasty: Risk Factors And Management Strategies, Clarence Julian Clark Ii, Adam Friedman, Jaylyn Thompson

Rowan-Virtua Research Day

Background: Periprosthetic femur fractures (PFFs) are increasingly recognized as a significant complication following total hip arthroplasty (THA), particularly as the number of procedures rises. While THA is one of the most successful orthopedic surgeries, PFFs can compromise outcomes and demand complex management.

Objective: To review current literature and identify patient- and implant-related risk factors for PFFs, as well as to summarize effective management strategies guided by classification systems.

Methods: A structured literature review was conducted using PubMed, focusing on articles published in the past 10 years. Eight peer-reviewed studies were selected based on relevance to femoral fractures post-THA. Data on …

The Gut Microbiome And Knee Osteoarthritis: A Review Of Emerging Pathophysiologic Links, Krisha S. Patel, Maduka Gunasinghe, Umer Shah, Kushkumar K. Patel, Zarif Ladak

Rowan-Virtua Research Day

Background

Knee osteoarthritis (OA), a multifactorial degenerative joint disease with growing prevalence in aging and obese populations, leads to disabling pain. Traditionally viewed as mechanically driven, increasing research implicates systemic inflammation and metabolic and neuroimmune modulation. The gut microbiome—an ecosystem of commensal organisms regulating host immune, metabolic, and inflammatory regulation—has emerged as a potential contributor to OA pathogenesis and symptom severity. This review aims to synthesize literature evaluating associations between gut microbiota composition and knee OA, focusing on inflammatory pathways, pain modulation, and emerging therapies.

Methods

A literature search was conducted using PubMed, Embase, Scopus, and Web of Science. Inclusion …

Systematic Review And Meta-Analysis Examining If Hyperplasia Occurs In Humans In Response To Resistance Exercise, Hitesh Gowda, Scott Dankel, Harshal Parmar, Nicholas Barton

Rowan-Virtua Research Day

Background: It is commonly believed that resistance exercise in humans induces muscle growth primarily via muscle hypertrophy, but there is some debate as to whether muscle hyperplasia occurs. The purpose of this meta-analysis was to quantitively assess whether the presence of muscle hyperplasia occurs in humans performing resistance training.

Methods: Medline, Scopus, and Web of Science were searched on May 17, 2024. Studies that assessed muscle fiber number pre and post resistance training were included in a three-level random effects model to assess changes in muscle fiber number.

Results: A total of 11 studies met the search criteria, with all …

Musculoskeletal Changes In Pregnancy: Implications For Long-Term Bone & Joint Health, Jaylyn Thompson, Clarence Julian Clark Ii, Nayarith Lopez, Aziza Ndaw

Rowan-Virtua Research Day

Pregnancy and lactation represent significant physiological challenges to maternal skeletal health, with substantial implications for both short and long-term musculoskeletal integrity. Research emphasizes that lactation induces notable skeletal adaptations, with up to 10% bone mineral density loss occurring in trabecular-rich regions such as the spine and hip (1,5). While most women experience substantial recovery post-weaning, the research indicates that recovery patterns vary significantly, with some women experiencing incomplete restoration of bone mass, potentially compromising long-term skeletal strength (3).

The underlying mechanisms driving these changes are primarily hormonal, with elevated parathyroid hormone-related protein (PTHrP) and decreased estrogen levels during lactation facilitating …

Case Report : Perilunate Fracture After A Fall On An Outstretched Hand, Meghna Kurup, Nicholas Tomasello, James Espinosa, Alan Lucerna

Rowan-Virtua Research Day

We report the case of a 44-year-old male that presented to the emergency department (ED) with a fall on his outstretched hand and was subsequently diagnosed to have a trans-scaphoid perilunate dislocation. He underwent closed reduction of the dislocation in the ED and operative management ten days later. While wrist injuries are common in the ED, it is important to diagnose perilunate and lunate dislocations early as they can often be associated with avascular necrosis, neurological injury and poor functional outcomes if not managed in a timely manner.

Assessing Sleep Quality In A Preclinical Model Of Low Back Pain Through Novel Noninvasive Methods, Lydia C. Saltz

Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research

Chronic low back pain (LBP) has widespread negative impacts on quality of life. Current treatments for chronic LBP fail to provide long-term efficacy and motivate the need to understand key drivers of poor patient outcomes. Mounting evidence indicates that sleep disturbances and chronic LBP have a strong reciprocal relationship. Women may be particularly vulnerable to the negative impacts of the sleep-pain axis, exhibiting greater prevalence in both conditions. However, the relationship between sleep, pain, and sex remains understudied. Preclinical models can be used to parse out characteristic sleep features that degrade with pain, which can be further broken out by …

Inequities In The Rehabilitation Process Of Musculoskeletal Injuries In Maine, Devon A. Grant

Thinking Matters Symposium

Since 2016, Maine’s population has grown as a result of migration and a welcoming of refugees. Changes in state demographics influence the population’s and individuals’ social determinants of health (SDOH) (ie., “where people live, learn, work, and play”) and health literacy (ie., a person’s ability to find, understand, and use information to inform health-related decisions). This project aims to identify the health inequities or disparities throughout Southern Maine in the care of injuries to the lower extremity, such as the knee or ankle, as well as explore factors that influence the healthcare outcomes of athletes in surrounding communities. This study …

Forearm Muscle Alterations During Maximal Voluntary Isometric Contraction, Jacob Hutchison, Mark Timmons, Brandon Jones

Appalachian Student Healthcare Research Review

Background: This study evaluated the relationship between grip strength and forearm skeletal muscle architecture during maximal grip contractions. Grip strength is a gauge for many different health related attributes, yet research on muscle architecture has been primarily completed in lower limb studies. This study aims to develop a better understanding of how biomechanical architecture of muscle operates to produce force during maximal isometric contractions of the forearms.

Methods: Sixteen individuals participated in this investigation (12 males, 4 females, mean age: 20.6 ± 2.5 years, mean height: 177.8 ± 8.3cm, mean weight: 79.2 ± 17.6Kg). Participants tested grip strength by performing …

Gray Matter Morphology And Pain-Related Disability In Young Adults With Low Back Pain, Jo Armour Smith, Rongwen Tain, Isaac Chrisman, Kelli G. Sharp, Laura M. Glynn, Linda R. Van Dillen, Jesse V. Jacobs, Steven C. Cramer

Physical Therapy Faculty Articles and Research

Structural neuroplasticity in the brain may contribute to the persistence of low back pain (LBP) symptoms and the disability associated with them. It is not known if structural adaptations are evident early in the lifespan in young adults with LBP. This study compared gray matter in cortical sensorimotor regions in young adults with and without persistent LBP and identified gray matter and clinical predictors of pain-related disability. Eighty-two individuals with and without a history of LBP participated. Peak and average gray matter density in cortical sensorimotor regions of interest was quantified using voxel-based morphometry. Pain-related disability, pain intensity, pain duration, …