Orthopedics Commons^™

Concomitant Subacromial Decompression Remains Commonly Performed During Rotator Cuff Repair: A Trinetx Study, Madison Baldauf, Zachary Krumm, Savannah Ward, Katherine Worcester, Kevin Bonner Md

Knowledge and Creativity Expo

Introduction:

Arthroscopic rotator cuff repair (RCR) is among the most frequently performed shoulder procedures in the US and is often accompanied by concomitant subacromial decompression (SAD). In recent years some studies have called into question the benefit of SAD in this setting. The topic is controversial as many surgeons still feel SAD is indicated. This study aims to characterize the changes in proportion of SAD performed concomitantly with RCR over recent years using TriNetX.

Methods:

The TriNetX database was queried for all patients undergoing arthroscopic rotator cuff repair from 2013 to 2025. Cohorts were established using the Current Procedural Terminology …

3d-Printed Alginate Scaffolds Incorporated With Synergistic Strontium/Magnesium - Doped Bioglass Nanoparticles For Bone Regeneration: An In Vivo Evaluation In Rabbit Cranial Defects, Mehraneh Movahedi Aliabadi, Afsaneh Jahani, Seyed Majdoddin Vahidi Toorchi, Ali Moradi, Mohammad Hossein Ebrahimzadeh, Fatemeh Kalalinia, Farkhonde Sarhaddi, Lobat Tayebi, Nafiseh Jirofti

Electrical & Computer Engineering Faculty Publications

Nonunion fractures remain a major orthopedic challenge, highlighting the need for improved bone tissue engineering (BTE) strategies. This study hypothesized that incorporating Sr/Mg-doped 58S bioglass nanoparticles into 3D-printed alginate (Alg) scaffolds would improve their physicochemical, mechanical, and biological properties and enhance bone regeneration. Structural characterization showed that Sr/Mg-doping reduced bioglass size and produced interconnected porous scaffolds. Under wet conditions, Alg scaffold incorporating 2.5%Sr/Mg-doped 58S bioglass showed the highest Young’s modulus (0.4356 ± 0.0244 MPa), whereas under dry conditions, the Alg scaffold incorporating 5%Sr/Mg-doped 58S bioglass achieved the highest value (0.1945 ± 0.0519 MPa). In vitro studies demonstrated biocompatibility and enhanced …

A Narrative Review Of Bertolotti's Syndrome: Etiology, Classification, Diagnosis, And Treatment, Matyas Abel Tsegaye, Andrea Muffly

Rehabilitation Sciences Faculty Publications

Bertolotti's syndrome is a congenital condition characterized by chronic low back pain stemming from a lumbosacral transitional vertebra (LSTV). Because the condition is frequently overlooked, patients often face years of delayed diagnosis before the true source of their pain is identified. Furthermore, current information regarding the biological origins and clinical management of the condition remain scattered. To address this knowledge gap, this narrative review aims to provide a comprehensive overview of Bertolotti’s syndrome by consolidating these disparate sources and suggesting new connections. We synthesize the latest understanding of this condition, ranging from its genetic origins to modern clinical management. We …

Ultrasound-Based Assessment Of Talar Cartilage In Individuals With Chronic Ankle Instability: A Systematic Review, Amin Mohammadi, Saeed Eshghi, Iman Mohammadi, Patrick Wilson, Ryan Mccann

Rehabilitation Sciences Faculty Publications

Purpose

To systematically synthesize ultrasound (US) evidence on talar cartilage morphology and load-induced deformation in individuals with chronic ankle instability (CAI), and to map methodological approaches (acquisition, outcome definitions, loading paradigms, and normalization) to inform protocol standardization.

Methods

PubMed, Web of Science, and EBSCO were searched (March 31, 2025). Eligible studies reported quantitative US-derived talar cartilage morphology (e.g., thickness, cross-sectional area [CSA]) and/or deformation following standardized loading in CAI and comparison groups. Due to heterogeneity in imaging protocols, loading tasks, and outcome definitions, findings were synthesized narratively and organized by outcome domain.

Results

Across available cohorts, load-induced deformation was the …

Expert Consensus On Osteoporosis Risk Management In Patients With Sleep Disorders, Siqi Leng, Jinming Yang, Yuming Jin, Jie Shi, Ye Zhang, Junying Zhou, Lusi Tan, Taomei Li, Peiyan Ni, Kejia Hu, Yuan Shi, Jiamin Liao, Yun Li, Pei Xue, Christian Benedict, Alexandros N. Vgontzas, Michael Furian, Talant Sooronbaev, Naima Covassin, Virend K. Somers, Zhoulong Yu, Hongqiang Sun, Xiao Tan, Jihui Zhang, Yun Kwok Wing, Yue Leng, Larry D. Sanford, Michael V. Vitiello, Katie L. Stone, Rong Ren, Lin Lu, Xiangdong Tang

Department of Biomedical and Translational Sciences Faculty Publications

A rate-limiting step in the prevention and early intervention of osteoporosis is identifying its asymptomatic onset. Accumulating evidence shows that sleep disorders are associated with an increased risk of osteoporosis. Given their early detectable and modifiable nature, integrating sleep disorder management into osteoporosis prevention and care pathways offers a novel approach for enhancing skeletal health. This expert consensus represents a collaborative effort by specialists in sleep medicine and orthopedics from across the world, integrating epidemiological, mechanistic, and interventional evidence to provide general guidance for prevention and clinical practice, and to foster multidisciplinary collaboration in the management of sleep disorders and …

Failure Rates And Patient-Reported Outcomes Are Similar Across 5 Arthroscopic, Suprapectoral Biceps Tenodesis Fixation Techniques, Senah E. Stephens, Samantha M. Strohm, Rachael M. Shaughnessy, Katherine S. Worcester, Kevin F. Bonner

Department Surgery Faculty Publications

Purpose

To compare failure rates and patient-reported outcome measures (PROMs) across 5 arthroscopic, suprapectoral biceps tenodesis fixation techniques: tenodesis screw, tenodesis anchor, expanding tenodesis anchor, onlay with single all-suture anchor, and soft tissue tenodesis in the bicipital groove with suture.

Methods

This was a retrospective cohort study approved by the Institutional Review Board, including patients age 18 years or older who underwent arthroscopic, suprapectoral biceps tenodesis between 2014 and 2024 with a minimum of 6 months of clinical follow-up. Exclusion criteria included cervical pathology, chronic pain syndromes, revisions, and workers' compensation cases. Patients completed PROMs including pain Visual Analog Scale …

A Comprehensive Review Of Bone Remodeling After Trauma And Operative Treatment In Orthopedic Surgery, Sarah E. Rabin, Ian P. Marshall, Benjamin A. Nelson, Justine N. Li, Madison M. Baldauf, Ashley B. Bozzay, Benjamin W. Hoyt

Department of Medicine Faculty Publications

Bone remodeling is a dynamic process involving bone resorption and formation that is regulated on a cellular level and impacted by mechanical stress. A variety of Orthopedic surgery treatment strategies can affect bone remodeling, which can in turn may have long-term impacts on skeletal stress tolerance and function. This review provides a comprehensive overview of bone remodeling involved in Orthopedic surgery. Materials related to bone remodeling principles across Orthopedic surgery domains were selected and compiled using databases including PubMed, MEDLINE, AccessMedicine, and CINAHL; case studies were not included. Relevant literature was summarized for a general review of bone remodeling and …

A Spine-Specific Lexicon For The Sentiment Analysis Of Interviews With Adult Spinal Deformity Patients Correlate With Sf-36, Sf-36, And Odi Scores: A Pilot Study Of 25 Patients, Ross Gore, Michael M. Safaee, Christopher J. Lynch, Christopher P. Ames

VMASC Publications

Classic health-related quality of life (HRQOL) metrics are cumbersome, time-intensive, and subject to biases based on the patient’s native language, educational level, and cultural values. Natural language processing (NLP) converts text into quantitative metrics. Sentiment analysis enables subject matter experts to construct domain-specific lexicons that assign a value of either negative (−1) or positive (1) to certain words. The growth of telehealth provides opportunities to apply sentiment analysis to transcripts of adult spinal deformity patients’ visits to derive a novel and less biased HRQOL metric. In this study, we demonstrate the feasibility of constructing a spine-specific lexicon for sentiment analysis …

Psychometric Validation Of Eq-5d-5l In Individuals With Chronic Spinal Cord Injury In China, Haixia Xie, Qi Zhang, Rong Jin, Jianhui He, Xinxing Hu, Yixuan Zhang, Xiaoping Shao, Xiaohong Li, Hua Zhai, Fengshui Chang

Epidemiology, Biostatistics, & Environmental Health Faculty Publications

Objectives

The EQ-5D is a brief measure for assessing health-related quality of life (HRQoL), but chronic spinal cord injury (CSCI) related psychometric evaluation of the EQ-5D-5L has not been explored. We conducted a validation study on the Chinese version of the EQ-5D-5L for individuals with CSCI in China.

Methods

A cross-sectional study was conducted in the Shanghai Sunshine Rehabilitation Center. The floor and ceiling effects, internal consistency, test and retest reliability, discriminatory power (only for EQ-5D-5L), convergent validity (using Spearman correlation coefficients), and known-group validity of the EQ-5D-5L and visual analog scale (VAS) were analyzed.

Results

A total of 271 …

Arthroscopic Inlay Biceps Tenodesis Using A Tendon-Docking Anchor, Mark G. Soliman, Katherine S. Worcester M.S., Thomas E. Herron, Kevin F. Bonner

Department of Medicine Faculty Publications

Pathology of the long head of the biceps tendon can be treated surgically with a multitude of tenodesis techniques; however, there is a lack of consensus on which technique provides the most optimal outcomes. Commonly used methods include inlay tenodesis with a bone tunnel and interference screw construct and onlay tenodesis with anchors or unicortical buttons. Although current methods typically provide satisfactory outcomes, many surgeons believe complications and failure rates remain suboptimal across techniques. In this article, we present an arthroscopic suprapectoral biceps tenodesis technique using an anchor device that was developed to address the shortcomings of current techniques, optimize …

Fast Multiscale Functional Estimation In Optimal Emg Placement For Robotic Prosthesis Controllers, Jin Ren, Guohui Song, Lucia Tabacu, Yuesheng Xu

Mathematics & Statistics Faculty Publications

Electromyogram (EMG) signals play a significant role in decoding muscle contraction information for robotic hand prosthesis controllers. Widely applied decoders require a large amount of EMG signals sensors, resulting in complicated calculations and unsatisfactory predictions. By the biomechanical process of single degree-of-freedom human hand movements, only several EMG signals are essential for accurate predictions. Recently, a novel predictor of hand movements adopted a multistage sequential adaptive functional estimation (SAFE) method based on the historical functional linear model (FLM) to select important EMG signals and provide precise projections.

However, SAFE repeatedly performs matrix-vector multiplications with a dense representation matrix of the …

Preventive Training Program Feedback Complexity, Movement Control, And Performance In Youth Athletes, Hayley J. Root, Eleanor M. Beltz, Julie P. Burland, Jessica C. Martinez, R. Curt Bay, Lindsay J. Distefano

Rehabilitation Sciences Faculty Publications

Context: Preventive training programs (PTPs) reduce injury risk by improving movement control. Corrective feedback is important; however, many cues at once may be too complicated for athletes.

Objective: To compare movement control and long-jump (LJ) changes in youth athletes participating in a season-long PTP, with simplified feedback, traditional feedback, or a warmup of the coaches' choosing.

Design: Cluster-randomized controlled trial.

Setting: Soccer fields.

Patients or Other Participants: A total of 420 athletes (simplified feedback = 173, traditional feedback = 118, and control = 129; age = 11 ± 3 years).

Intervention(s): Teams were randomized into the simplified PTP, traditional PTP, …

"Everybody Wants To Be Included": Experiences With 'Inclusive' Strategies In Physical Education, Katherine Holland, Justin A. Haegele, Xihe Zhu, Jonna Bobzien

Human Movement Studies & Special Education Faculty Publications

This study examined how students with orthopedic impairments experienced strategies identified in the literature to support ‘inclusion’. An interpretative phenomenological analysis research approach was used, and six students with orthopedic impairments (age 10–14 years) served as participants. Data sources were written prompts, semi-structured, audiotaped interviews, and reflective interview notes. Based on thematic data analysis, four themes were constructed: “It’s kind of embarrassing”: experiences with support; “I don’t want to be different”: equipment, activity, and rule modifications; “I like to be a part of the conversation”: autonomy and choice in PE; and “I would rather be like the other students”: discussing …

Modeling And Simulation Of Electromagnetic Fields To Maintain Bone Density During Prolonged Low Gravity Exposure, Austin Tapp, Michael Francis, Michel A. Audette

Electrical & Computer Engineering Faculty Publications

Astronauts in a long term, low-gravity environments experience bone density loss at 10 times the rate of those diagnosed with osteoporosis. One treatment effective at maintaining bone density in osteoporotic individuals is electromagnetic field (EMF) therapy. Tools that induce EMFs are becoming increasingly prevalent, but to amplify osteogenesis and encourage superior bone density retention for astronauts, ideal EMF therapy parameters must be determined on patient-specific bases. Therefore, this study explores simulation environments that elucidate highly favorable EMF factors. Pulsed electromagnetic field and combined magnetic field generating devices are variably introduced near partient-specific, finite element (FE) models of the femur, spine, …

Surgical Gps Proof Of Concept For Scoliosis Surgery, Austin Tapp, Michel Audette

Computational Modeling & Simulation Engineering Faculty Publications

Scoliotic deformities may be addressed with either anterior or posterior approaches for scoliosis correction procedures. While typically quite invasive, the impact of these operations may be reduced through the use of computer-assisted surgery. A combination of physician-designated anatomical landmarks and surgical ontologies allows for real-time intraoperative guidance during computer-assisted surgical interventions. Predetermined landmarks are labeled on an identical patient model, which seeks to encompass vertebrae, intervertebral disks, ligaments, and other soft tissues. The inclusion of this anatomy permits the consideration of hypothetical forces that are previously not well characterized in a patient-specific manner. Updated ontologies then suggest procedural directions throughout …

The Additive Effects Of Cell Phone Use And Dental Hygiene Practice On Finger Muscle Strength: A Pilot Study, Jessica R. Suedbeck, Cortney N. Armitano-Lago, Emily A. Ludwig

Dental Hygiene Faculty Publications

Purpose: The purpose of this study was to determine strength of muscles involved with instrumentation (scaling) by dental hygienists and the additive effects of cellular (mobile) phone usage, as indicated by measurements of muscular force generation.

Methods: A convenience sample of licensed dental hygienists currently in clinical practice (n=16) and an equal number of individuals not currently using devices/tools repetitively for work (n=16), agreed to participate in this pilot study. All participants completed a modified cell phone usage questionnaire to determine their use pattern and frequency. Upon completion of the questionnaire, participants' force production in six muscle groups was measured …

Direct Crystal Formation From Micronized Bone And Lactic Acid: The Writing On The Wall For Calcium-Containing Crystal Pathogenesis In Osteoarthritis?, Anna A. Bulysheva, Nardos Sori, Michael P. Francis

Bioelectrics Publications

Introduction

Pathological calcium-containing crystals accumulating in the joints, synovial fluid, and soft tissues are noted in most elderly patients, yet arthritic crystal formation remains idiopathic. Interestingly, elevated lactic acid and bone erosion are frequently among the comorbidities and clinical features of patients with highest incidence of crystal arthropathies. This work shows that bone particulates (modeling bone erosion) dissolve in lactic acid and directly generate crystals, possibly presenting a mechanism for crystal accumulation in osteoarthritis.

Methods and results

Micronized human bone (average particle size of 160 μm x 79 μm ) completely dissolved in lactic acid in 48 hours, and in …

Response Shift And Functional Outcomes In Individuals With Chronic Ankle Instability, Cameron J. Powden

Health Services Research Dissertations

Ankle sprains are one of the most common injuries sustained by those who are physically active. One in three individuals will develop a condition known as chronic ankle instability (CAI) after suffering a single ankle sprain. These individuals suffer from recurrent bouts of ankle instability, residual symptoms, and a myriad of other mechanical and functional impairments as well as health-related quality of life (HRQL) deficits. Due to the abundance of health consequences associated with this condition it is imperative to establish evidence based interventions that are focused on restoring function and HRQL to pre-injury statuses.

The overarching purpose of this …

Cell Stimulation And Calcium Mobilization By Picosecond Electric Pulses, Iurii Semenov, Shu Xiao, Dongkoo Kang, Karl H. Schoenbach, Andrei G. Pakhomov

Bioelectrics Publications

We tested if picosecond electric pulses (psEP; 190 kV/cm, 500 ps at 50% height), which are much shorter than channel activation time, can activate voltage-gated (VG) channels. Cytosolic Ca²⁺ was monitored by Fura-2 ratiometric imaging in GH3 and NG108 cells (which express multiple types of VG calcium channels, VGCC), and in CHO cells (which express no VGCC). Trains of up to 100 psEP at 1 kHz elicited no response in CHO cells. However, even a single psEP significantly increased Ca²⁺ in both GH3 (by 114 +/- 48 nM) and NG108 cells (by 6 +/- 1.1 nM). Trains of …

Bioactive Lipid Coating Of Bone Allografts Direct Engraftment And Fate Determination Of Bone Marrow-Derived Cells In Rat Gfp Chimeras, Anusuya Das, Claire E. Segar, Yihsuan Chu, Tiffany W. Wang, Yon Lin, Chunxi Yang, Roy C. Ogle

School of Medical Diagnostics & Translational Sciences Publications

Bone grafting procedures are performed to treat wounds incurred during wartime trauma, accidents, and tumor resections. Endogenous mechanisms of repair are often insufficient to ensure integration between host and donor bone and subsequent restoration of function. We investigated the role that bone marrow-derived cells play in bone regeneration and sought to increase their contributions by functionalizing bone allografts with bioactive lipid coatings. Polymer-coated allografts were used to locally deliver the immunomodulatory small molecule FTY720 in tibial defects created in rat bone marrow chimeras containing genetically-labeled bone marrow for monitoring cell origin and fate. Donor bone marrow contributed significantly to both …

Differential Effects Of Fatigue On Movement Variability, N. Cortes, J. Onate, S. Morrison

Rehabilitation Sciences Faculty Publications

When individuals perform purposeful actions to fatigue, there is typically a general decline in their movement performance. This study was designed to investigate the effects exercise-induced fatigue has on lower limb kinetics and kinematics during a side-step cutting task. In particular, it was of interest to determine what changes could be seen in mean amplitude and all metrics of signal variability with fatigue. The results of the study revealed that post-fatigue there was an overall decrease in absolute force production as reflected by a decline in mean amplitude and variability (SD) of the ground reaction forces (GRF_V and GRF …

Effect Of A Lateral Wedge Insole Over A One Week Period In A Healthy Population, Sarah E. Sudheimer

Human Movement Studies & Special Education Theses & Dissertations

Medial knee osteoarthritis is a disease that is projected to affect approximately 45% of the U.S. population and is associated with significant morbidity, chronic pain, and limited activity. Laterally wedged insoles are used as an intervention to laterally shift the mechanical axis of the limb and decrease the external knee adduction moment, possibly indicating a shift in load distribution to the lateral compartment of the knee. The aim of this study was to examine the acute effects of a laterally wedged insole in those with valgus and normally aligned knees and to determine prolonged effects after the insole was worn …

Comparing Responsiveness Of Six Common Patient-Reported Outcomes To Changes Following Autologous Chondrocyte Implantation: A Systematic Review And Meta-Analysis Of Prospective Studies, Jennifer S. Howard, Christian Lattermann, Johanna M. Hoch, Carl G. Mattacola, Jennifer M. Medina Mckeon

Rehabilitation Sciences Faculty Publications

Objective: To compare the responsiveness of six common patient-reported outcomes (PROs) following autologous chondrocyte implantation (ACI). Design: A systematic search was conducted to identify reports of PROs following ACI. Study quality was evaluated using the modified Coleman Methodology Score (mCMS). For each outcome score, pre- to postoperative paired Hedge's g effect sizes were calculated with 95% confidence intervals (CIs). Random effects meta-analyses were performed to provide a summary response for each PRO at time points (TP) I (<1 year), II (1 year to <2 years), III (2 years to <4 years), IV (>= 4 years), and overall. Results: The mean mCMS for the 42 articles included was 50.9 +/- 9.2. For all evaluated instruments, …

The Effects Of A Semi-Rigid Ankle Brace On A Simulated Isolated Subtalar Joint Instability, Julie Choisne, Matthew C. Hoch, Sebastian Bawab, Ian Alexander, Stacie I. Ringleb

Mechanical & Aerospace Engineering Faculty Publications

Subtalar joint instability is hypothesized to occur after injuries to the calcaneofibular ligament (CFL) in isolation or in combination with the cervical and the talocalcaneal interosseous ligaments. A common treatment for hindfoot instability is the application of an ankle brace. However, the ability of an ankle brace to promote subtalar joint stability is not well established. We assessed the kinematics of the subtalar joint, ankle, and hindfoot in the presence of isolated subtalar instability, investigated the effect of bracing in a CFL deficient foot and with a total rupture of the intrinsic ligaments, and evaluated how maximum inversion range of …

Erosive Hand Osteoarthritis Is Associated With Subclinical Atherosclerosis And Endothelial Dysfunction, Athanasios Koutroumpas, Athanasios Giannoukas, Elias Zintzaras, Ekaterini Exarchou, Aris Baliakos, Konstantinos Makaritsis, Lazaros I. Sakkas

Biological Sciences Faculty Publications

Chronic inflammatory disorders have been associated with accelerated atherosclerosis and increased cardiovascular (CV) risk. Recent evidence suggests that erosive hand osteoarthritis (EOA) has considerable inflammation; therefore, we examined the presence of subclinical atherosclerosis and endothelial dysfunction in EOA. Twenty-four patients with EOA and 24 age- and sex-matched healthy individuals without clinical OA were included in the study. No subject had a history of CV disease. Intima-media thickness (IMT) and atheromatous plaques in the common carotid and common femoral arteries were measured by Doppler ultrasonography. The endothelium-dependent, flow-mediated dilatation (FMD) and endothelium-independent, sublingual glyceryl trinitrate (NTG)-induced dilatation (NMD) of the brachial …

Upper Extremity Strength Characteristics In Female Recreational Tennis Players With And Without Lateral Epicondylalgia, Ann M. Lucado, Morey J. Kolber, M. Samuel Cheng, John L. Echternach Sr.

Rehabilitation Sciences Faculty Publications

STUDY DESIGN: Descriptive, cross-sectional.

OBJECTIVES: To compare static strength characteristics of the upper extremity musculature in female recreational tennis players with lateral epicondylalgia to those of nonsymptomatic tennis players and a control group of women who did not play tennis.

BACKGROUND: There is a paucity of research describing the relationship between lateral epicondylalgia and strength characteristics of the upper extremity musculature, despite the functional relationship between the shoulder, elbow, and wrist.

METHODS: Sixty-three women were recruited into 3 groups (n = 21 per group): symptomatic tennis players (SIP) with lateral epicondylalgia, nonsymptomatic tennis players, and controls. Data collection was performed …

Two-Week Joint Mobilization Intervention Improves Self-Reported Function, Range Of Motion, And Dynamic Balance In Those With Chronic Ankle Instability, Matthew C. Hoch, Richard D. Andreatta, David R. Mullineaux, Robert A. English, Jennifer M. Medina Mckeon, Carl G. Mattacola, Patrick O. Mckeon

Human Movement Studies & Special Education Faculty Publications

We examined the effect of a 2-week anterior-to-posterior ankle joint mobilization intervention on weight-bearing dorsiflexion range of motion (ROM), dynamic balance, and self-reported function in subjects with chronic ankle instability (CAI). In this prospective cohort study, subjects received six Maitland Grade III anterior-to-posterior joint mobilization treatments over 2 weeks. Weight-bearing dorsiflexion ROM, the anterior, posteromedial, and posterolateral reach directions of the Star Excursion Balance Test (SEBT), and self-reported function on the Foot and Ankle Ability Measure (FAAM) were assessed 1 week before the intervention (baseline), prior to the first treatment (pre-intervention), 24-48 h following the final treatment (post-intervention), and 1 …

Effects Of Lateral Ligament Sectioning On The Stability Of The Ankle And Subtalar Joint, Stacie I. Ringleb, Ajaya Dhakal, Claude D. Anderson, Sebastian Bawab, Rajesh Paranjape

Mechanical & Aerospace Engineering Faculty Publications

Patients with subtalar joint instability are often diagnosed with ankle instability. Only after a prolonged period of time in which a patient does not improve after treatment for ankle instability is subtalar joint instability considered. To develop a clinically relevant method to diagnose subtalar joint instability, the kinematics of the simulated unstable subtalar joint were examined. A 6 degree-of-freedom positioning and loading device was developed. Plantarflexion/dorsiflexion, inversion/eversion, and internal/external rotation were applied individually or as coupled motions along with an anterior/posterior drawer. Kinematic data were collected from sensors attached to the calcaneus, talus, and tibia by keeping all the ligaments …

Test-Retest Reliability And Minimal Detectable Change Scores For The Timed "Up & Go" Test, The Six-Minute Walk Test, And Gait Speed In People With Alzheimer Disease, Julie D. Ries, John L. Echternach, Leah Nof, Michelle Gagnon Blodgett

Rehabilitation Sciences Faculty Publications

Background. With the increasing incidence of Alzheimer disease (AD), determining the validity and reliability Of Outcome measures for people with this disease is necessary.

Objective. The goals of this study were to assess test-retest reliability of data for the Timed "Up & Go" Test (TUG), the Six-Minute Walk Test (6MWT), and gait speed and to calculate minimal detectable change (MDC) scores for each outcome measure. Performance differences between groups With mild to moderate AD and moderately severe to severe AD (as determined by the Functional Assessment Staging [FAST] scale) were Studied.

Design. This was a prospective, nonexperimental, descriptive methodological study. …

Development Of A Technique To Diagnose Subtalar Joint Instability, Ajaya Dhakal

Mechanical & Aerospace Engineering Theses & Dissertations

Most patients escape diagnosis of subtalar joint instability for years before treatment. Therefore, a clinically relevant technique to diagnose subtalar joint instability will improve its management. Towards this goal, a six degree of freedom positioning and loading device was developed to apply physiologic loads to the hindfoot. Because the ideal loading configuration to detect subtalar joint instability is unknown, the device was designed to apply rotational and translational forces simultaneously. Specifically, plantarflexion/dorsiflexion, inversion/eversion, and internal/external rotation can be applied individually or as coupled motions along with an anterior/posterior drawer. Kinematic data were collected from calcaneus, talus and tibia using a …