School of Medicine


Showing 81-100 of 207 Results

  • John Kleimeyer, MD

    John Kleimeyer, MD

    Clinical Assistant Professor, Orthopaedic Surgery

    BioDr. Kleimeyer specializes in orthopaedic spine surgery, treating cervical, thoracic and lumbar spine disorders including disc herniations, stenosis, myelopathy, fractures, scoliosis and more. He treats both simple and complex spine problems including revisions. His goal is to provide the most minimally invasive solution to improve patients’ quality of life. This includes less invasive discectomies, decompressions, disc replacements, and fusions. He is particularly focused on single-position procedures to limit surgical time and recovery.

    Prior to coming to the Stanford Department of Orthopaedic Surgery and the Stanford Spine Center, Dr. Kleimeyer completed his residency in orthopaedic surgery at Stanford University where he was elected to the Alpha Omega Alpha honor society. He then completed his spine fellowship at the renowned Emory University Spine Center. He is board-certified.

    Dr. Kleimeyer has received honors and recognition for his research in the fields of orthopaedic surgery and spine surgery. He participates in national and international specialty societies and as a journal reviewer. His research interests include improving clinical outcomes of surgical and nonsurgical care, the genetics of orthopaedic and spine disorders, and cost efficacy. Dr. Kleimeyer has published over 20 journal articles in addition to other reviews and textbook chapters, and has presented research nationally and internationally.

  • Jayme Koltsov, PhD

    Jayme Koltsov, PhD

    Biostatistician 3, Orthopaedic Surgery

    BioDr. Koltsov is an expert in clinical and translational orthopaedic research design and biostatistics with a unique and valuable combination of skill-sets. Her foundation from her Ph.D. in orthopaedic biomechanics provides an understanding of the underlying anatomy, pathology, and mechanics not typical for a biostatistician. This background empowers effective and efficient communication with clinicians and scientists and enables Dr. Koltsov to develop study designs and analytic strategies exceptionally tailored to the physical orthopaedic problems under investigation.

    Dr. Koltsov has an extensive knowledge base in research methodology and statistical methods honed from her PhD onward, including univariate statistics (parametric, non-parametric, and categorical); survival analysis (Kaplan Meier and Cox proportional hazards); multivariable and longitudinal data analyses (logistic regression, generalized linear modeling, linear mixed models, hierarchical and repeated measures modeling, and generalized estimating equations,); quasi-experimental techniques for reducing bias (propensity score matching and inverse probability treatment weighting); patient reported outcome design and validation; diagnostic test validation; and healthcare economic analysis. Over the past 11 years, Dr. Koltsov has developed a successful track record of collaborations with clinicians and scientists to lead and facilitate high-quality clinical, translational, and health services research spanning multiple orthopaedic disciplines, including spine, arthroplasty, foot and ankle, upper extremity, trauma, sports medicine, pediatrics, rheumatology, rehabilitation, and biomechanics.

  • Emily Kraus

    Emily Kraus

    Clinical Assistant Professor, Orthopaedic Surgery

    BioDr. Kraus is a Clinical Assistant Professor at Stanford Children’s Orthopedic and Sports Medicine Center trained in the specialty of Physical Medicine and Rehabilitation (PM&R) sports medicine. She has research and clinical interests in endurance sports medicine, injury prevention, running biomechanics, prevention of bone stress injuries, and the promotion of health and wellness at any age of life. Dr. Kraus is the director of the FASTR Program, which stands for Female Athlete Science and Translational Research. The FASTR program is supported by the Wu Tsai Human Performance Alliance and seeks to close the gender gap in sports science research with an emphasis on early identification and interventions to prevent injury and identify ways to optimize performance in female athletes. Dr. Kraus is also a member of the U.S. Olympic and Paralympic Committee Women's Health Task Force and is the medical director of the Stanford Children's Motion Analysis and Sport Performance Lab. She has completed nine marathons including the Boston Marathon twice and one 50k ultramarathon. With running and staying physically active as one of her personal passions, she recognizes the importance of fitness for overall wellbeing and the prevention of chronic medical conditions.

  • Amy Ladd, MD

    Amy Ladd, MD

    Elsbach-Richards Professor of Surgery and Professor, by courtesy, of Medicine (Immunology & Rheumatology) and of Surgery (Plastic and Reconstructive Surgery)

    Current Research and Scholarly InterestsResearch Interests
    1. The kinematics and forces associated with thumb carpometcarpal (CMC) function and pathology
    2. The anatomy, microstructure, and immunofluorescent characteristics of the thumb CMC joint
    3. Pathomechaniics of CMC arthritis: biomechanical wear, injury, genetic, and environmental causes
    4. Biomechanics of the golf swing
    5. Archiving, vitalizing, and innovating medical and surgical knowledge, most recently with innovative iBook monographs

  • Rondy Michael Lazaro, MD

    Rondy Michael Lazaro, MD

    Clinical Assistant Professor, Orthopaedic Surgery

    BioDr. Rondy Michael Lazaro is a board-certified, fellowship-trained physiatrist with specialization in sports medicine in the Stanford Health Care Physical Medicine and Rehabilitation Division. He is also a clinical assistant professor in the Department of Orthopaedic Surgery, Division of Physical Medicine and Rehabilitation at Stanford University School of Medicine.

    Dr. Lazaro’s clinical expertise includes diagnosing and treating a wide range of sports medicine conditions. His clinical practice focuses on injuries and conditions of the lower extremity (hip, knee, ankle, and foot). He is an expert in using ultrasound to diagnose musculoskeletal injuries and perform ultrasound-guided procedures. Dr. Lazaro is experienced with treating injuries in runners and other endurance athletes. He is also well-versed in taking care of performing artists such as dancers and musicians.

    He has extensive experience providing medical coverage for high school, collegiate, and professional athletic events and teams. He was a lead venue physician for the 2023 World University Games in Lake Placid, New York. He also served as company physician for New York State Ballet.

    His research focuses on evidence-based approaches to prevent injury, relieve pain, and optimize health and performance. Organizations such as the American Medical Society for Sports Medicine (AMSSM) have supported his work with grant funding.

    Dr. Lazaro has been published in journals such as The Knee and Clinical Journal of Sports Medicine. He has presented his findings at national and international conferences, including the annual meetings of the Association of Academic Physiatrists and the AMSSM.

    Dr. Lazaro is an active member of several professional societies, including the American College of Sports Medicine and the International Association for Dance Medicine & Science. He also serves on committees for the AMSSM and the Performing Arts Medicine Association. He is a fellow of the American Academy of Physical Medicine and Rehabilitation.

    Dr. Lazaro is originally from Hayward, California. He graduated from Stanford University with a BA in Music (concentration in Conducting) and BS in Biology. He earned his MD from the University of Virginia School of Medicine. He completed his internship in Internal Medicine at Alameda Health System/Highland Hospital. He then completed his residency in Physical Medicine and Rehabilitation at Virginia Commonwealth University, followed by a fellowship in Sports Medicine at Virginia Commonwealth University and Bon Secours St. Francis Medical Center.

  • Jeehee Lee

    Jeehee Lee

    Postdoctoral Scholar, Orthopedic Surgery

    BioDr. Lee is a dedicated researcher in the field of biomedical engineering, driven by a strong desire to help individuals suffering from illnesses. With a particular interest in disease treatment and regeneration, she embarked on her journey in this field. During her doctoral studies, Dr. Lee focused on developing functional biomaterials by leveraging chemical bonding at interfaces. Her expertise in this area led her to successfully create functional medical devices. Currently, as a postdoctoral researcher at Stanford University, Dr. Lee is actively involved in drug screening using a bone-mimicking 3D in vitro cancer model that utilizes biomaterials. Her research is centered around the utilization of biomaterials to develop innovative approaches for tuning the communication between cells and biomaterials. By advancing in the field of biomaterials, Dr. Lee aims to facilitate a better understanding of cell-biomaterial interactions, with the ultimate goal of improving healthcare outcomes. With her passion for cutting-edge research and her commitment to the development of biomaterials, Dr. Lee is dedicated to making significant contributions to the field and shaping the future of healthcare.

  • Tien-Ching Lee

    Tien-Ching Lee

    Affiliate, Orthopaedic Surgery
    Visiting Scholar, Orthopaedic Surgery

    BioI am an orthopedic surgeon and assistant professor at Kaohsiung Medical University (KMU), serving in the Department of Orthopaedics at Kaohsiung Medical University Hospital, Taiwan. I completed my Ph.D. at KMU in 2023, focusing on orthopedic research and innovation.
    My clinical expertise and research interests encompass orthopedic trauma, hand surgery, osteoporosis, and fracture repair. My work has been recognized with several prestigious awards, including the 2018 Merit Paper Award from the Taiwanese Osteoporosis Association and the 2019 AOTAP Scientific Congress Merit Paper Award.
    As part of a dynamic research team, I have contributed to significant medical device innovations. Our developments include a novel targeting device for screw positioning and an advanced surgical tool for carpal tunnel release. These innovations have secured patents across multiple jurisdictions, including the United States, Taiwan, China, European nations, and Singapore. Our achievements have been honored with the Taiwan National Innovation Award for four consecutive years (2019, 2020, 2022, and 2024).
    Currently, I am a visiting scholar in Dr. Yang's laboratory at Stanford University, where I am expanding my expertise in innovation, research, and development while fostering international collaborations. This aligns with my commitment to advancing orthopedic care through global knowledge exchange and professional networking.

  • Joshua Levin, MD

    Joshua Levin, MD

    Clinical Associate Professor, Orthopaedic Surgery
    Clinical Associate Professor, Neurosurgery

    BioDr. Levin completed a residency in physical medicine and rehabilitation at the University of Michigan in 2007, and a pain medicine fellowship at the Virginia Commonwealth University in 2008. Currently, he is a member of both the departments of orthopedic surgery and neurosurgery at Stanford University, where he also is the director of the PM&R interventional spine fellowship and the director of the PM&R residency program.