Richard Souza, PhD, PT
Professor
Physical Therapy
School of Medicine

Dr. Souza obtained his BS in Exercise Science from the University of California, Davis in 1998, and he received his MPT in Physical Therapy from Samuel Merritt College, Oakland in 2002. He earned his PhD in Biokinesiology from the University of Southern California in 2008, followed by a postdoctoral fellowship in Biomedical Imaging from the University of California, San Francisco in 2009.

Dr. Souza’s research interests are focused on the relationships between mechanics of human movement and development and progression of knee and hip osteoarthritis. Presently, he is involved in projects that evaluate the influence of loading behavior on cartilage health and determining effectiveness of prevention and rehabilitation strategies on joint health using advanced quantitative magnetic resonance imaging of the hip and knee. Dr. Souza’s future research goals include combining his background in biomechanics and motion analysis with advanced quantitative imaging techniques to identify new therapeutic targets that can be used to slow or prevent hip and knee osteoarthritis. He has 85 published manuscripts and he has written more than 130 peer-reviewed abstracts. Dr. Souza's research is funded by the National Institutes of Health.

Dr. Souza is also part of the UCSF RunSafe team, a program which is offered to all runners or walkers interested in a comprehensive evaluation of gait mechanics, strength and flexibility, foot structure and footwear choices, and nutritional approaches. In the RunSafe clinic, Dr. Souza collaborates with physicians, biomechanists, physical therapists, engineers, nutritionists, orthotists, and athletic trainers.

Expertise: Musculoskeletal

Specialty: Physical therapy, orthopaedic diseases, knee

Professional Interests: Injury mechanics, rehabilitation, lower extremity biomechanics, injury prevention, osteoarthritis, medical imaging, dynamic magnetic resonance imaging, motion analysis, quantitative imaging

Education and Training:

• Bachelor of Science: University of California, Davis - Exercise Science
• Masters of Physical Therapy: Samuel Merritt College, Oakland - Physical Therapy
• Doctor of Philosophy: University of Southern California - Biokinesiology
• Postdoctoral Fellow: University of California, San Francisco - Biomedical Imaging

• Large-Scale Analysis of Meniscus Morphology as Risk Factor for Knee Osteoarthritis.
  Arthritis & rheumatology (Hoboken, N.J.) 2023 Gao KT, Xie E, Chen V, Iriondo C, Calivà F, Souza RB, Majumdar S, Pedoia V
• Effects of T1p Characteristics of Load-Bearing Hip Cartilage on Bilateral Knee Patellar Cartilage Subregions: Subjects With None to Moderate Radiographic Hip Osteoarthritis.
  Journal of magnetic resonance imaging : JMRI 2023 Bhattacharjee R, Thahakoya R, Luitjens J, Han M, Roach KE, Jiang F, Souza RB, Pedoia V, Majumdar S
• Comparing Digital to Conventional Physical Therapy for Chronic Shoulder Pain: Randomized Controlled Trial.
  Journal of medical Internet research 2023 Pak SS, Janela D, Freitas N, Costa F, Moulder R, Molinos M, Areias AC, Bento V, Cohen SP, Yanamadala V, Souza RB, Correia FD
• Does hip muscle strength and functional performance differ between football players with and without hip dysplasia?
  Physical therapy in sport : official journal of the Association of Chartered Physiotherapists in Sports Medicine 2023 O'Brien MJM, Heerey J, Semciw AI, Mechlenburg I, Jacobsen JS, King MG, Scholes MJ, Lawrenson PR, Crossley K, Agricola R, Souza RB, Kemp JL
• Persistent underloading of patellofemoral joint following hamstring autograft ACL reconstruction is associated with cartilage health.
  Osteoarthritis and cartilage 2023 Liao TC, Bird A, Samaan MA, Pedoia V, Majumdar S, Souza RB
• Trajectory of knee health in runners with and without heightened osteoarthritis risk: the TRAIL prospective cohort study protocol.
  BMJ open 2023 De Oliveira Silva D, Johnston RTR, Mentiplay BF, Haberfield MJ, Culvenor AG, Bruder AM, Semciw AI, Girdwood M, Pappalardo PJ, Briggs C, West TJ, Hill JP, Patterson BE, Barton CJ, Sritharan P, …
• SUpervised exercise-therapy and Patient Education Rehabilitation (SUPER) versus minimal intervention for young adults at risk of knee osteoarthritis after ACL reconstruction: SUPER-Knee randomised controlled trial protocol.
  BMJ open 2023 Culvenor AG, West TJ, Bruder AM, Scholes MJ, Barton CJ, Roos EM, Oei E, McPhail SM, Souza RB, Lee J, Patterson BE, Girdwood MA, Couch JL, Crossley KM
• Baseline cartilage T1ρ and T2 predicted patellofemoral joint cartilage lesion progression and patient-reported outcomes after ACL reconstruction.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2022 Xie D, Tanaka M, Pedoia V, Li AK, Facchetti L, Neumann J, Lartey R, Souza RB, Link TM, Benjamin Ma C, Li X
• Contact ratio and adaptations in the maxillary and mandibular dentoalveolar joints in rats and human clinical analogs.
  Journal of the mechanical behavior of biomedical materials 2022 Wang B, Nguyen N, Kang M, Srirangapatanam S, Connelly S, Souza R, Ho SP
• Correlating Biomechanical Gait Analysis With Patient-Reported Outcomes After Hip Arthroscopy for Femoroacetabular Impingement Syndrome.
  Orthopaedic journal of sports medicine 2022 Kannan AS, Hartwell MJ, Grace T, Hammond E, Soriano KKJ, Souza RB, Zhang AL
• Acetabular cartilage delamination: performance of MRI using arthroscopy as the standard of reference.
  Acta radiologica (Stockholm, Sweden : 1987) 2022 Neumann J, Zhang AL, Bucknor M, Majumdar S, Souza R, Joseph GB, Link TM
• Local Patterns in 2-Year T1ρ and T2 Changes of Hip Cartilage Are Related to Sex and Functional Data: A Prospective Evaluation on Hip Osteoarthritis Participants.
  Journal of magnetic resonance imaging : JMRI 2022 Roach KE, Souza RB, Majumdar S, Pedoia V
• Association of patella alignment with cartilage relaxation times and self-reported symptoms in individuals with patellofemoral degeneration.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2022 Liao TC, Pedoia V, Link TM, Majumdar S, Souza RB
• The association between statistical shape modeling-defined hip morphology and features of early hip osteoarthritis in young adult football players: Data from the femoroacetabular impingement and hip osteoarthritis cohort (FORCe) study.
  Osteoarthritis and cartilage open 2022 van Buuren MMA, Heerey JJ, Smith A, Crossley KM, Kemp JL, Scholes MJ, Lawrenson PR, King MG, Gielis WP, Weinans H, Lindner C, Souza RB, Verhaar JAN, Agricola R
• Does Femoroacetabular Impingement Syndrome Affect Self-Reported Burden in Football Players With Hip and Groin Pain?
  Sports health 2022 Scholes MJ, Kemp JL, Mentiplay BF, Heerey JJ, Agricola R, Semciw AI, Souza RB, Link TM, Majumdar S, King MG, Lawrenson PR, Crossley KM
• Hip-Knee Joint Coordination Patterns are Associated With Patellofemoral Joint Cartilage Composition in Patients With Anterior Cruciate Ligament Reconstruction.
  Journal of applied biomechanics 2022 Samaan MA, Pedoia V, Tanaka MS, Souza RB, Benjamin Ma C, Li X
• Cam morphology is associated with MRI-defined cartilage defects and labral tears: a case-control study of 237 young adult football players with and without hip and groin pain.
  BMJ open sport & exercise medicine 2021 Heerey J, Kemp J, Agricola R, Srinivasan R, Smith A, Pizzari T, King M, Lawrenson P, Scholes M, Link T, Souza R, Majumdar S, Crossley K
• Subject-specific biomechanical analysis to estimate locations susceptible to osteoarthritis-Finite element modeling and MRI follow-up of ACL reconstructed patients.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2021 Bolcos PO, Mononen ME, Roach KE, Tanaka MS, Suomalainen JS, Mikkonen S, Nissi MJ, Töyräs J, Link TM, Souza RB, Majumdar S, Ma CB, Li X, Korhonen RK
• Longitudinal Changes of Patellar Alignment Before and After Anterior Cruciate Ligament Reconstruction With Hamstring Autograft.
  The American journal of sports medicine 2021 Liao TC, Pedoia V, Majumdar S, Souza RB
• Association of Quadriceps Adiposity With an Increase in Knee Cartilage, Meniscus, or Bone Marrow Lesions Over Three Years.
  Arthritis care & research 2021 Kumar D, Link TM, Jafarzadeh SR, LaValley MP, Majumdar S, Souza RB
• Changes in Hip Capsule Morphology after Arthroscopic Treatment for Femoroacetabular Impingement Syndrome with Periportal Capsulotomy are Correlated With Improvements in Patient-Reported Outcomes.
  Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association 2021 Nguyen KH, Shaw C, Link TM, Majumdar S, Souza RB, Vail TP, Zhang AL
• Patellar mobility and lower limb kinematics during functional activities in individuals with and without patellar tendinopathy.
  The Knee 2021 Lazaro RM, Souza RB, Luke AC
• Automatic hip abductor muscle fat fraction estimation and association with early OA cartilage degeneration biomarkers.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2021 Tibrewala R, Pedoia V, Lee J, Kinnunen C, Popovic T, Zhang AL, Link TM, Souza RB, Majumdar S
• Impact of different physical activity types on knee joint structural degeneration assessed with 3-T MRI in overweight and obese subjects: data from the osteoarthritis initiative.
  Skeletal radiology 2021 Schirò S, Foreman SC, Joseph GB, Souza RB, McCulloch CE, Nevitt MC, Link TM
• Patient-Reported Activity Levels Correlate With Early Cartilage Degeneration After Anterior Cruciate Ligament Reconstruction.
  The American journal of sports medicine 2021 Friedman JM, Su F, Zhang AL, Allen CR, Feeley BT, Souza R, Li X, Ma CB, Lansdown DA
• Prevalence of early hip OA features on MRI in high-impact athletes. The femoroacetabular impingement and hip osteoarthritis cohort (FORCe) study.
  Osteoarthritis and cartilage 2020 Heerey JJ, Srinivasan R, Agricola R, Smith A, Kemp JL, Pizzari T, King MG, Lawrenson PR, Scholes MJ, Souza RB, Link T, Majumdar S, Crossley KM
• Multivariate functional principal component analysis identifies waveform features of gait biomechanics related to early-to-moderate hip osteoarthritis.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2020 Roach KE, Pedoia V, Lee JJ, Popovic T, Link TM, Majumdar S, Souza RB
• Longitudinal analysis of the contribution of 3D patella and trochlear bone shape on patellofemoral joint osteoarthritic features.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2020 Liao TC, Jergas H, Tibrewala R, Bahroos E, Link TM, Majumdar S, Souza RB, Pedoia V
• Correlation of hip capsule morphology with patient symptoms from femoroacetabular impingement.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2020 Shaw C, Warwick H, Nguyen KH, Link TM, Majumdar S, Souza RB, Vail TP, Zhang AL
• Patellar Malalignment Is Associated With Patellofemoral Lesions and Cartilage Relaxation Times After Hamstring Autograft Anterior Cruciate Ligament Reconstruction.
  The American journal of sports medicine 2020 Liao TC, Martinez AGM, Pedoia V, Ma BC, Li X, Link TM, Majumdar S, Souza RB
• Lower knee extensor and flexor strength is associated with varus thrust in people with knee osteoarthritis.
  Journal of biomechanics 2020 Espinosa SE, Costello KE, Souza RB, Kumar D
• Patients with Symptomatic Hip Osteoarthritis Have Altered Kinematics during Stair Ambulation.
  PM & R : the journal of injury, function, and rehabilitation 2020 Popovic T, Samaan MA, Link TM, Majumdar S, Souza RB
• Altered tibiofemoral position following ACL reconstruction is associated with cartilage matrix changes: A voxel-based relaxometry analysis.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2020 Li AK, Ochoa JK, Pedoia V, Amano K, Souza RB, Li X, Ma CB
• Computer-Aided Detection AI Reduces Interreader Variability in Grading Hip Abnormalities With MRI.
  Journal of magnetic resonance imaging : JMRI 2020 Tibrewala R, Ozhinsky E, Shah R, Flament I, Crossley K, Srinivasan R, Souza R, Link TM, Pedoia V, Majumdar S
• Patients With Abnormal Limb Kinetics at 6 Months After Anterior Cruciate Ligament Reconstruction Have an Increased Risk of Persistent Medial Meniscal Abnormality at 3 Years.
  Orthopaedic journal of sports medicine 2020 Shimizu T, Markes AR, Samaan MA, Tanaka MS, Souza RB, Li X, Ma CB
• Six-month post-surgical elevations in cartilage T1rho relaxation times are associated with functional performance 2 years after ACL reconstruction.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2019 Li AK, Pedoia V, Tanaka M, Souza RB, Ma CB, Li X
• Short term outcomes of hip arthroscopy on hip joint mechanics and cartilage health in patients with femoroacetabular impingement syndrome.
  Clinical biomechanics (Bristol, Avon) 2019 Samaan MA, Grace T, Zhang AL, Majumdar S, Souza RB
• Postoperative MRI Findings and Associated Pain Changes After Arthroscopic Surgery for Femoroacetabular Impingement.
  AJR. American journal of roentgenology 2019 Foreman SC, Zhang AL, Neumann J, von Schacky CE, Souza RB, Majumdar S, Link TM
• Extracting Voxel-Based Cartilage Relaxometry Features in Hip Osteoarthritis Subjects Using Principal Component Analysis.
  Journal of magnetic resonance imaging : JMRI 2019 Liao TC, Pedoia V, Neumann J, Link TM, Souza RB, Majumdar S
• Abnormal Joint Loading During Gait in Persons With Hip Osteoarthritis Is Associated With Symptoms and Cartilage Lesions.
  The Journal of orthopaedic and sports physical therapy 2019 Liao TC, Samaan MA, Popovic T, Neumann J, Zhang AL, Link TM, Majumdar S, Souza RB
• Association Between Gait Kinetics and Symptomatic Progression in Persons With Patellofemoral With/Without Concurrent Tibiofemoral Osteoarthritis.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2019 Liao TC, Teng HL, Link TM, Majumdar S, Souza RB
• Increases in Joint Laxity After Anterior Cruciate Ligament Reconstruction Are Associated With Sagittal Biomechanical Asymmetry.
  Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association 2019 Shimizu T, Cheng Z, Samaan MA, Tanaka MS, Souza RB, Li X, Ma CB
• Sleep restriction impairs maximal jump performance and joint coordination in elite athletes.
  Journal of sports sciences 2019 Mah CD, Sparks AJ, Samaan MA, Souza RB, Luke A
• T1ρ-based fibril-reinforced poroviscoelastic constitutive relation of human articular cartilage using inverse finite element technology.
  Quantitative imaging in medicine and surgery 2019 Wan C, Ge L, Souza RB, Tang SY, Alliston T, Hao Z, Li X
• Hip joint muscle forces during gait in patients with femoroacetabular impingement syndrome are associated with patient reported outcomes and cartilage composition.
  Journal of biomechanics 2018 Samaan MA, Zhang AL, Popovic T, Pedoia V, Majumdar S, Souza RB
• Comparison between kinetic and kinetic-kinematic driven knee joint finite element models.
  Scientific reports 2018 Bolcos PO, Mononen ME, Mohammadi A, Ebrahimi M, Tanaka MS, Samaan MA, Souza RB, Li X, Suomalainen JS, Jurvelin JS, Töyräs J, Korhonen RK
• Abnormal Biomechanics at 6 Months Are Associated With Cartilage Degeneration at 3 Years After Anterior Cruciate Ligament Reconstruction.
  Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association 2018 Shimizu T, Samaan MA, Tanaka MS, Pedoia V, Souza RB, Li X, Ma CB
• MR study of longitudinal variations in proximal femur 3D morphological shape and associations with cartilage health in hip osteoarthritis.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2018 Inamdar G, Pedoia V, Rossi-Devries J, Samaan MA, Link TM, Souza RB, Majumdar S
• Using the Scoring Hip Osteoarthritis with Magnetic Resonance Imaging (SHOMRI) system to assess intra-articular pathology in femoroacetabular impingement.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2018 Grace T, Neumann J, Samaan MA, Souza RB, Majumdar S, Link TM, Zhang AL
• Validation of scoring hip osteoarthritis with MRI (SHOMRI) scores using hip arthroscopy as a standard of reference.
  European radiology 2018 Neumann J, Zhang AL, Schwaiger BJ, Samaan MA, Souza R, Foreman SC, Joseph GB, Grace T, Majumdar S, Link TM
• Correlation of Patient Symptoms With Labral and Articular Cartilage Damage in Femoroacetabular Impingement.
  Orthopaedic journal of sports medicine 2018 Grace T, Samaan MA, Souza RB, Link TM, Majumdar S, Zhang AL
• Longitudinal analysis of tibiofemoral cartilage contact area and position in ACL reconstructed patients.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2018 Chen E, Amano K, Pedoia V, Souza RB, Ma CB, Li X
• Using multidimensional topological data analysis to identify traits of hip osteoarthritis.
  Journal of magnetic resonance imaging : JMRI 2018 Rossi-deVries J, Pedoia V, Samaan MA, Ferguson AR, Souza RB, Majumdar S
• Running does not increase symptoms or structural progression in people with knee osteoarthritis: data from the osteoarthritis initiative.
  Clinical rheumatology 2018 Lo GH, Musa SM, Driban JB, Kriska AM, McAlindon TE, Souza RB, Petersen NJ, Storti KL, Eaton CB, Hochberg MC, Jackson RD, Kwoh CK, Nevitt MC, Suarez-Almazor ME
• Differences in Knee and Hip Adduction and Hip Muscle Activation in Runners With and Without Iliotibial Band Syndrome.
  PM & R : the journal of injury, function, and rehabilitation 2018 Baker RL, Souza RB, Rauh MJ, Fredericson M, Rosenthal MD
• Local associations between knee cartilage T1ρ and T2 relaxation times and patellofemoral joint stress during walking: A voxel-based relaxometry analysis.
  The Knee 2018 Teng HL, Pedoia V, Link TM, Majumdar S, Souza RB
• What is the prevalence of imaging-defined intra-articular hip pathologies in people with and without pain? A systematic review and meta-analysis.
  British journal of sports medicine 2018 Heerey JJ, Kemp JL, Mosler AB, Jones DM, Pizzari T, Souza RB, Crossley KM
• Femoroacetabular impingement and hip OsteoaRthritis Cohort (FORCe): protocol for a prospective study.
  Journal of physiotherapy 2017 Crossley KM, Pandy MG, Majumdar S, Smith AJ, Agricola R, Semciw AI, Kemp JL, Heerey JJ, King MG, Lawrenson PR, Lin YC, Souza RB, Mosler AB, Link TM, Srinivasan R, Schache AG
• Frontal Plane Knee Mechanics and Early Cartilage Degeneration in People With Anterior Cruciate Ligament Reconstruction: A Longitudinal Study.
  The American journal of sports medicine 2017 Kumar D, Su F, Wu D, Pedoia V, Heitkamp L, Ma CB, Souza RB, Li X
• Sagittal plane walking patterns are related to MRI changes over 18-months in people with and without mild-moderate hip osteoarthritis.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2017 Kumar D, Wyatt C, Lee S, Okazaki N, Chiba K, Link TM, Souza RB, Majumdar S
• iPhone Sensors in Tracking Outcome Variables of the 30-Second Chair Stand Test and Stair Climb Test to Evaluate Disability: Cross-Sectional Pilot Study.
  JMIR mHealth and uHealth 2017 Adusumilli G, Joseph SE, Samaan MA, Schultz B, Popovic T, Souza RB, Majumdar S
• Variations in Knee Kinematics After ACL Injury and After Reconstruction Are Correlated With Bone Shape Differences.
  Clinical orthopaedics and related research 2017 Lansdown DA, Pedoia V, Zaid M, Amano K, Souza RB, Li X, Ma CB
• Gait Characteristics Associated With a Greater Increase in Medial Knee Cartilage T1ρ and T2 Relaxation Times in Patients Undergoing Anterior Cruciate Ligament Reconstruction.
  The American journal of sports medicine 2017 Teng HL, Wu D, Su F, Pedoia V, Souza RB, Ma CB, Li X
• A novel mr-based method for detection of cartilage delamination in femoroacetabular impingement patients.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2017 Samaan MA, Pedoia V, Zhang AL, Gallo MC, Link TM, Souza RB, Majumdar S
• Study of the interactions between proximal femur 3d bone shape, cartilage health, and biomechanics in patients with hip Osteoarthritis.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2017 Pedoia V, Samaan MA, Inamdar G, Gallo MC, Souza RB, Majumdar S
• Biomechanical Factors Associated With Pain and Symptoms Following Anterior Cruciate Ligament Injury and Reconstruction.
  PM & R : the journal of injury, function, and rehabilitation 2017 Azus A, Teng HL, Tufts L, Wu D, Ma CB, Souza RB, Li X
• MRI and biomechanics multidimensional data analysis reveals R2 -R1ρ as an early predictor of cartilage lesion progression in knee osteoarthritis.
  Journal of magnetic resonance imaging : JMRI 2017 Pedoia V, Haefeli J, Morioka K, Teng HL, Nardo L, Souza RB, Ferguson AR, Majumdar S
• Cyclops lesions are associated with altered gait patterns and medial knee joint cartilage degeneration at 1 year after ACL-reconstruction.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2017 Samaan MA, Facchetti L, Pedoia V, Tanaka MS, Link TM, Souza RB, Ma CB, Li X
• Is There an Association Between a History of Running and Symptomatic Knee Osteoarthritis? A Cross-Sectional Study From the Osteoarthritis Initiative.
  Arthritis care & research 2017 Lo GH, Driban JB, Kriska AM, McAlindon TE, Souza RB, Petersen NJ, Storti KL, Eaton CB, Hochberg MC, Jackson RD, Kent Kwoh C, Nevitt MC, Suarez-Almazor ME
• Axial traction magnetic resonance imaging (MRI) of the glenohumeral joint in healthy volunteers: initial experience.
  Clinical imaging 2017 Garwood ER, Souza RB, Zhang A, Zhang AL, Ma CB, Link TM, Motamedi D
• Joint Loading in the Sagittal Plane During Gait Is Associated With Hip Joint Abnormalities in Patients With Femoroacetabular Impingement.
  The American journal of sports medicine 2016 Samaan MA, Schwaiger BJ, Gallo MC, Sada K, Link TM, Zhang AL, Majumdar S, Souza RB
• Cross-sectional and longitudinal study of the impact of posterior meniscus horn lesions on adjacent cartilage composition, patient-reported outcomes and gait biomechanics in subjects without radiographic osteoarthritis.
  Osteoarthritis and cartilage 2016 Russell C, Pedoia V, Souza RB, Majumdar S
• Abnormal Joint Moment Distributions and Functional Performance During Sit-to-Stand in Femoroacetabular Impingement Patients.
  PM & R : the journal of injury, function, and rehabilitation 2016 Samaan MA, Schwaiger BJ, Gallo MC, Link TM, Zhang AL, Majumdar S, Souza RB
• Analysis of the articular cartilage T1ρ and T2 relaxation times changes after ACL reconstruction in injured and contralateral knees and relationships with bone shape.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2016 Pedoia V, Su F, Amano K, Li Q, McCulloch CE, Souza RB, Link TM, Ma BC, Li X
• Longitudinal study using voxel-based relaxometry: Association between cartilage T1ρ and T2 and patient reported outcome changes in hip osteoarthritis.
  Journal of magnetic resonance imaging : JMRI 2016 Pedoia V, Gallo MC, Souza RB, Majumdar S
• Role of thigh muscle cross-sectional area and strength in progression of knee cartilage degeneration over 48 months - data from the Osteoarthritis Initiative.
  Osteoarthritis and cartilage 2016 Goldman LH, Tang K, Facchetti L, Heilmeier U, Joseph GB, Nevitt MC, McCulloch CE, Souza RB, Link TM
• Loaded versus unloaded magnetic resonance imaging (MRI) of the knee: Effect on meniscus extrusion in healthy volunteers and patients with osteoarthritis.
  European journal of radiology open 2016 Patel R, Eltgroth M, Souza R, Zhang CA, Majumdar S, Link TM, Motamedi D
• Quantitative magnetic resonance arthrography in patients with femoroacetabular impingement.
  Journal of magnetic resonance imaging : JMRI 2016 Samaan MA, Zhang AL, Gallo MC, Schwaiger BJ, Link TM, Souza RB, Majumdar S
• Persistent Biomechanical Alterations After ACL Reconstruction Are Associated With Early Cartilage Matrix Changes Detected by Quantitative MR.
  Orthopaedic journal of sports medicine 2016 Amano K, Pedoia V, Su F, Souza RB, Li X, Ma CB
• Associations between patellofemoral joint cartilage T1ρ and T2 and knee flexion moment and impulse during gait in individuals with and without patellofemoral joint osteoarthritis.
  Osteoarthritis and cartilage 2016 Teng HL, Calixto NE, MacLeod TD, Nardo L, Link TM, Majumdar S, Souza RB
• Longitudinal assessment of MRI in hip osteoarthritis using SHOMRI and correlation with clinical progression.
  Seminars in arthritis and rheumatism 2016 Schwaiger BJ, Gersing AS, Lee S, Nardo L, Samaan MA, Souza RB, Link TM, Majumdar S
• T1ρ and T2 relaxation times are associated with progression of hip osteoarthritis.
  Osteoarthritis and cartilage 2016 Gallo MC, Wyatt C, Pedoia V, Kumar D, Lee S, Nardo L, Link TM, Souza RB, Majumdar S
• Inter- and intra-rater reliability of patellofemoral kinematic and contact area quantification by fast spin echo MRI and correlation with cartilage health by quantitative T1ρ MRI.
  The Knee 2015 Lau BC, Thuillier DU, Pedoia V, Chen EY, Zhang Z, Feeley BT, Souza RB
• An Evidence-Based Videotaped Running Biomechanics Analysis.
  Physical medicine and rehabilitation clinics of North America 2015 Souza RB
• Training in ChiRunning to reduce blood pressure: a randomized controlled pilot study.
  BMC complementary and alternative medicine 2015 McDermott K, Kumar D, Goldman V, Feng H, Mehling W, Moskowitz JT, Souza RB, Hecht FM
• Zonal differences in meniscus MR relaxation times in response to in vivo static loading in knee osteoarthritis.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2015 Calixto NE, Kumar D, Subburaj K, Singh J, Schooler J, Nardo L, Li X, Souza RB, Link TM, Majumdar S
• Acetabular cartilage defects cause altered hip and knee joint coordination variability during gait.
  Clinical biomechanics (Bristol, Avon) 2015 Samaan MA, Teng HL, Kumar D, Lee S, Link TM, Majumdar S, Souza RB
• Are There Sex Differences in Knee Cartilage Composition and Walking Mechanics in Healthy and Osteoarthritis Populations?
  Clinical orthopaedics and related research 2015 Kumar D, Souza RB, Subburaj K, MacLeod TD, Singh J, Calixto NE, Nardo L, Link TM, Li X, Lane NE, Majumdar S
• Higher Knee Flexion Moment During the Second Half of the Stance Phase of Gait Is Associated With the Progression of Osteoarthritis of the Patellofemoral Joint on Magnetic Resonance Imaging.
  The Journal of orthopaedic and sports physical therapy 2015 Teng HL, MacLeod TD, Link TM, Majumdar S, Souza RB
• Three-dimensional MRI-based statistical shape model and application to a cohort of knees with acute ACL injury.
  Osteoarthritis and cartilage 2015 Pedoia V, Lansdown DA, Zaid M, McCulloch CE, Souza R, Ma CB, Li X
• Cartilage T1ρ and T2 Relaxation Times in Patients With Mild-to-Moderate Radiographic Hip Osteoarthritis.
  Arthritis & rheumatology (Hoboken, N.J.) 2015 Wyatt C, Kumar D, Subburaj K, Lee S, Nardo L, Narayanan D, Lansdown D, Vail T, Link TM, Souza RB, Majumdar S
• Abnormal tibial position is correlated to early degenerative changes one year following ACL reconstruction.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2015 Zaid M, Lansdown D, Su F, Pedoia V, Tufts L, Rizzo S, Souza RB, Li X, Ma CB
• Medial and Lateral Heel Whips: Prevalence and Characteristics in Recreational Runners.
  PM & R : the journal of injury, function, and rehabilitation 2015 Souza RB, Hatamiya N, Martin C, Aramaki A, Martinelli B, Wong J, Luke A
• Individuals with isolated patellofemoral joint osteoarthritis exhibit higher mechanical loading at the knee during the second half of the stance phase.
  Clinical biomechanics (Bristol, Avon) 2015 Teng HL, MacLeod TD, Kumar D, Link TM, Majumdar S, Souza RB
• Anatomic correlates of reduced hip extension during walking in individuals with mild-moderate radiographic hip osteoarthritis.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2015 Kumar D, Wyatt C, Chiba K, Lee S, Nardo L, Link TM, Majumdar S, Souza RB
• Effects of Form-Focused Training on Running Biomechanics: A Pilot Randomized Trial in Untrained Individuals.
  PM & R : the journal of injury, function, and rehabilitation 2015 Kumar D, McDermott K, Feng H, Goldman V, Luke A, Souza RB, Hecht FM
• Reproducibility measurements of three methods for calculating in vivo MR-based knee kinematics.
  Journal of magnetic resonance imaging : JMRI 2014 Lansdown DA, Zaid M, Pedoia V, Subburaj K, Souza R, Benjamin C, Li X
• A comprehensive in vivo kinematic, quantitative MRI and functional evaluation following ACL reconstruction--A comparison between mini-two incision and anteromedial portal femoral tunnel drilling.
  The Knee 2014 Lansdown DA, Allen C, Zaid M, Wu S, Subburaj K, Souza R, Feeley BT, Li X, Ma CB
• Physical activity and spatial differences in medial knee T1rho and t2 relaxation times in knee osteoarthritis.
  The Journal of orthopaedic and sports physical therapy 2014 Kumar D, Souza RB, Singh J, Calixto NE, Nardo L, Link TM, Li X, Majumdar S
• Magnetic resonance analysis of loaded meniscus deformation: a novel technique comparing participants with and without radiographic knee osteoarthritis.
  Skeletal radiology 2014 MacLeod TD, Subburaj K, Wu S, Kumar D, Wyatt C, Souza RB
• Scoring hip osteoarthritis with MRI (SHOMRI): A whole joint osteoarthritis evaluation system.
  Journal of magnetic resonance imaging : JMRI 2014 Lee S, Nardo L, Kumar D, Wyatt CR, Souza RB, Lynch J, McCulloch CE, Majumdar S, Lane NE, Link TM
• Frontal plane knee mechanics and medial cartilage MR relaxation times in individuals with ACL reconstruction: A pilot study.
  The Knee 2014 Kumar D, Kothari A, Souza RB, Wu S, Benjamin Ma C, Li X
• Cartilage MRI relaxation times after arthroscopic partial medial meniscectomy reveal localized degeneration.
  Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA 2014 Souza RB, Wu SJ, Morse LJ, Subburaj K, Allen CR, Feeley BT
• Response of knee cartilage T1rho and T2 relaxation times to in vivo mechanical loading in individuals with and without knee osteoarthritis.
  Osteoarthritis and cartilage 2014 Souza RB, Kumar D, Calixto N, Singh J, Schooler J, Subburaj K, Li X, Link TM, Majumdar S
• Patellofemoral joint stress during weight-bearing and non-weight-bearing quadriceps exercises.
  The Journal of orthopaedic and sports physical therapy 2014 Powers CM, Ho KY, Chen YJ, Souza RB, Farrokhi S
• Differences in the association of hip cartilage lesions and cam-type femoroacetabular impingement with movement patterns: a preliminary study.
  PM & R : the journal of injury, function, and rehabilitation 2014 Kumar D, Dillon A, Nardo L, Link TM, Majumdar S, Souza RB
• Quadriceps intramuscular fat fraction rather than muscle size is associated with knee osteoarthritis.
  Osteoarthritis and cartilage 2013 Kumar D, Karampinos DC, MacLeod TD, Lin W, Nardo L, Li X, Link TM, Majumdar S, Souza RB
• Changes in MR relaxation times of the meniscus with acute loading: an in vivo pilot study in knee osteoarthritis.
  Journal of magnetic resonance imaging : JMRI 2013 Subburaj K, Souza RB, Wyman BT, Le Graverand-Gastineau MP, Li X, Link TM, Majumdar S
• Quadriceps and hamstrings morphology is related to walking mechanics and knee cartilage MRI relaxation times in young adults.
  The Journal of orthopaedic and sports physical therapy 2013 Kumar D, Subburaj K, Lin W, Karampinos DC, McCulloch CE, Li X, Link TM, Souza RB, Majumdar S
• Differences between X-ray and MRI-determined knee cartilage thickness in weight-bearing and non-weight-bearing conditions.
  Osteoarthritis and cartilage 2013 Marsh M, Souza RB, Wyman BT, Hellio Le Graverand MP, Subburaj K, Link TM, Majumdar S
• Association of cartilage defects, and other MRI findings with pain and function in individuals with mild-moderate radiographic hip osteoarthritis and controls.
  Osteoarthritis and cartilage 2013 Kumar D, Wyatt CR, Lee S, Nardo L, Link TM, Majumdar S, Souza RB
• Simultaneous acquisition of T1ρ and T2 quantification in knee cartilage: repeatability and diurnal variation.
  Journal of magnetic resonance imaging : JMRI 2013 Li X, Wyatt C, Rivoire J, Han E, Chen W, Schooler J, Liang F, Shet K, Souza R, Majumdar S
• T1ρ imaging demonstrates early changes in the lateral patella in patients with patellofemoral pain and maltracking.
  The American journal of sports medicine 2013 Thuillier DU, Souza RB, Wu S, Luke A, Li X, Feeley BT
• Bone marrow changes related to disuse.
  European radiology 2013 Nardo L, Sandman DN, Virayavanich W, Zhang L, Souza RB, Steinbach L, Guindani M, Link TM
• T1rho MRI relaxation in knee OA subjects with varying sizes of cartilage lesions.
  The Knee 2012 Souza RB, Feeley BT, Zarins ZA, Link TM, Li X, Majumdar S
• Loading of the knee during 3.0T MRI is associated with significantly increased medial meniscus extrusion in mild and moderate osteoarthritis.
  European journal of radiology 2012 Stehling C, Souza RB, Hellio Le Graverand MP, Wyman BT, Li X, Majumdar S, Link TM
• The acute effect of running on knee articular cartilage and meniscus magnetic resonance relaxation times in young healthy adults.
  The American journal of sports medicine 2012 Subburaj K, Kumar D, Souza RB, Alizai H, Li X, Link TM, Majumdar S
• The influence of hip abductor muscle performance on dynamic postural stability in females with patellofemoral pain.
  Gait & posture 2012 Lee SP, Souza RB, Powers CM
• Effects of unloading on knee articular cartilage T1rho and T2 magnetic resonance imaging relaxation times: a case series.
  The Journal of orthopaedic and sports physical therapy 2012 Souza RB, Baum T, Wu S, Feeley BT, Kadel N, Li X, Link TM, Majumdar S
• Non-traumatic anterior cruciate ligament abnormalities and their relationship to osteoarthritis using morphological grading and cartilage T2 relaxation times: data from the Osteoarthritis Initiative (OAI).
  Skeletal radiology 2012 Hovis KK, Alizai H, Tham SC, Souza RB, Nevitt MC, McCulloch CE, Link TM
• Evaluating rotational kinematics of the knee in ACL-ruptured and healthy patients using 3.0 Tesla magnetic resonance imaging.
  Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA 2011 Haughom BD, Souza R, Schairer WW, Li X, Ma CB
• Association of MR relaxation and cartilage deformation in knee osteoarthritis.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2011 Subburaj K, Souza RB, Stehling C, Wyman BT, Le Graverand-Gastineau MP, Link TM, Li X, Majumdar S
• Relationship between knee kinetics during jumping tasks and knee articular cartilage MRI T1rho and T2 relaxation times.
  Clinical biomechanics (Bristol, Avon) 2011 Souza RB, Fang C, Luke A, Wu S, Li X, Majumdar S
• In vivo tibiofemoral cartilage-to-cartilage contact area of females with medial osteoarthritis under acute loading using MRI.
  Journal of magnetic resonance imaging : JMRI 2011 Shin CS, Souza RB, Kumar D, Link TM, Wyman BT, Majumdar S
• Physical activity is associated with magnetic resonance imaging-based knee cartilage T2 measurements in asymptomatic subjects with and those without osteoarthritis risk factors.
  Arthritis and rheumatism 2011 Hovis KK, Stehling C, Souza RB, Haughom BD, Baum T, Nevitt M, McCulloch C, Lynch JA, Link TM
• Abnormal tibiofemoral kinematics following ACL reconstruction are associated with early cartilage matrix degeneration measured by MRI T1rho.
  The Knee 2011 Haughom B, Schairer W, Souza RB, Carpenter D, Ma CB, Li X
• Iliotibial band syndrome: soft tissue and biomechanical factors in evaluation and treatment.
  PM & R : the journal of injury, function, and rehabilitation 2011 Baker RL, Souza RB, Fredericson M
• In vivo measures of cartilage deformation: patterns in healthy and osteoarthritic female knees using 3T MR imaging.
  European radiology 2011 Cotofana S, Eckstein F, Wirth W, Souza RB, Li X, Wyman B, Hellio-Le Graverand MP, Link T, Majumdar S
• Local tissue properties of human osteoarthritic cartilage correlate with magnetic resonance T(1) rho relaxation times.
  Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2011 Tang SY, Souza RB, Ries M, Hansma PK, Alliston T, Li X
• The effects of acute loading on T1rho and T2 relaxation times of tibiofemoral articular cartilage.
  Osteoarthritis and cartilage 2010 Souza RB, Stehling C, Wyman BT, Hellio Le Graverand MP, Li X, Link TM, Majumdar S
• Knee extensor dynamics in the volleyball approach jump: the influence of patellar tendinopathy.
  The Journal of orthopaedic and sports physical therapy 2010 Sorenson SC, Arya S, Souza RB, Pollard CD, Salem GJ, Kulig K
• Measurement of femoral torsion by ultrasound and magnetic resonance imaging: concurrent validity.
  Physical therapy 2010 Kulig K, Harper-Hanigan K, Souza RB, Powers CM
• Cartilage and meniscus assessment using T1rho and T2 measurements in healthy subjects and patients with osteoarthritis.
  Osteoarthritis and cartilage 2010 Zarins ZA, Bolbos RI, Pialat JB, Link TM, Li X, Souza RB, Majumdar S
• Patellar tendinopathy alters the distribution of lower extremity net joint moments during hopping.
  Journal of applied biomechanics 2010 Souza RB, Arya S, Pollard CD, Salem G, Kulig K
• A three-dimensional quantitative method to measure meniscus shape, position, and signal intensity using MR images: a pilot study and preliminary results in knee osteoarthritis.
  Magnetic resonance in medicine 2010 Wirth W, Frobell RB, Souza RB, Li X, Wyman BT, Le Graverand MP, Link TM, Majumdar S, Eckstein F
• Femur rotation and patellofemoral joint kinematics: a weight-bearing magnetic resonance imaging analysis.
  The Journal of orthopaedic and sports physical therapy 2010 Souza RB, Draper CE, Fredericson M, Powers CM
• Pediatric endurance and limb strengthening (PEDALS) for children with cerebral palsy using stationary cycling: a randomized controlled trial.
  Physical therapy 2010 Fowler EG, Knutson LM, Demuth SK, Siebert KL, Simms VD, Sugi MH, Souza RB, Karim R, Azen SP, Physical Therapy Clinical Research Network (PTClinResNet)
• Concurrent criterion-related validity and reliability of a clinical test to measure femoral anteversion.
  The Journal of orthopaedic and sports physical therapy 2009 Souza RB, Powers CM
• The tissue diagnostic instrument.
  The Review of scientific instruments 2009 Hansma P, Yu H, Schultz D, Rodriguez A, Yurtsev EA, Orr J, Tang S, Miller J, Wallace J, Zok F, Li C, Souza R, Proctor A, Brimer D, Nogues-Solan X, Mellbovsky L, Peña MJ, Diez-Ferrer O, Mathews P, …
• Differences in hip kinematics, muscle strength, and muscle activation between subjects with and without patellofemoral pain.
  The Journal of orthopaedic and sports physical therapy 2009 Souza RB, Powers CM
• Predictors of hip internal rotation during running: an evaluation of hip strength and femoral structure in women with and without patellofemoral pain.
  The American journal of sports medicine 2008 Souza RB, Powers CM
• Identification of abnormal hip motion associated with acetabular labral pathology.
  The Journal of orthopaedic and sports physical therapy 2008 Austin AB, Souza RB, Meyer JL, Powers CM
• Trunk position influences the kinematics, kinetics, and muscle activity of the lead lower extremity during the forward lunge exercise.
  The Journal of orthopaedic and sports physical therapy 2008 Farrokhi S, Pollard CD, Souza RB, Chen YJ, Reischl S, Powers CM
• Trochlear groove spur in a patient with patellofemoral pain.
  The Journal of orthopaedic and sports physical therapy 2008 Souza RB, Powers CM