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    Article

    Dynamic Posterior Instability Test: A New Test for Posterior Glenohumeral Instability

    Recurrent posterior shoulder instability has become an increasingly recognized cause of shoulder disability, especially among athletes. The presentation can be vague and therefore its clinical diagnosis is oft...

    Justin W. Arner, Michael S. Nickoli, Tracye J. Lawyer… in Indian Journal of Orthopaedics (2022)

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    Chapter

    Anthropometry of the Native Knee

    At its very basic, the knee is a diarthrodial joint comprising the bony articulation between the femur and tibia as well as the femur and the patella. Despite its relative bony simplicity, it is responsible fo...

    Christopher L. McCrum, S. Joseph de Groot… in Basics in Primary Knee Arthroplasty (2022)

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    Chapter

    Initial Workup of the Failed ACL Reconstruction

    Anterior cruciate ligament (ACL) reconstruction failure is typically defined as graft failure, poor motion, continued pain, or inability to return to activities without limitation. When evaluating a failed ACL...

    Justin W. Arner, Joseph J. Ruzbarsky… in Revision Anterior Cruciate Ligament Recons… (2022)

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    Article

    Meniscal ramp lesions should be considered in anterior cruciate ligament-injured knees, especially with larger instability or longer delay before surgery

    To determine the incidence of meniscal ramp lesions in an anterior cruciate ligament (ACL) injured knees and to clarify whether ramp lesions are related to chronic ACL deficiency and increased knee instability.

    Yasutaka Tashiro, Tatsuya Mori… in Knee Surgery, Sports Traumatology, Arthros… (2020)

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    Article

    MRI can accurately detect meniscal ramp lesions of the knee

    Posterior horn meniscal tears are commonly found in conjunction with anterior cruciate ligament (ACL) injury. Some believe tears in the posterior meniscocapsular zone, coined ramp lesions, are important to kne...

    Justin W. Arner, Elmar Herbst… in Knee Surgery, Sports Traumatology, Arthros… (2017)

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    Article

    Increased lateral tibial posterior slope is related to tibial tunnel widening after primary ACL reconstruction

    The purpose of the study was to determine the influence of femoral and tibial bone morphology on the amount of femoral and tibial tunnel widening after primary anatomic ACL reconstruction. It was hypothesized ...

    Soheil Sabzevari, Amir Ata Rahnemai-Azar… in Knee Surgery, Sports Traumatology, Arthros… (2017)

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    Chapter

    Software Applications

    Rapid advances in computer science and related technologies in the last decades have resulted in the increased application in different fields of medicine. In particular, sophistication of smartphones and comp...

    Amir Ata Rahnemai-Azar, Justin W. Arner, Jan-Hendrik Naendrup… in Rotatory Knee Instability (2017)