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Preoperative quantitative pivot shift does not correlate with in vivo kinematics following ACL reconstruction with or without lateral extraarticular tenodesis
PurposeQuantitative pivot shift (QPS) testing using PIVOT technology can detect high- and low-grade rotatory knee instability following anterior...
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The effect of patellar facet angle on patellofemoral alignment and arthritis progression in posterior-stabilized total knee arthroplasty without patellar resurfacing
BackgroundThe purpose of this study was to evaluate the effect of patellar facet angle on pre- and postoperative patellofemoral alignment and the...
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Evaluation of the ‘Spaarne soft tissue procedure’ as a treatment for recurrent patellar dislocations: a four-in-one technique
PurposeThe ‘Spaarne soft tissue procedure’, is a 4-in-1 soft tissue procedure that treats recurrent patellar dislocations in the young and active...
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Dynamic versus static medial patellofemoral ligament reconstruction technique in the treatment of recurrent patellar dislocation: a randomized clinical trial protocol
BackgroundThe redislocation rate of conservatively treated patella instability is high. One of the leading surgical strategies is medial...
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Bone-patellar tendon–bone autograft maturation is superior to double-bundle hamstring tendon autograft maturation following anatomical anterior cruciate ligament reconstruction
PurposeThe primary purpose of this study was to evaluate the second-look arthroscopic findings 1 year postoperatively and magnetic resonance imaging...
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Correlation of preoperative CT imaging shift parameters of the lateral plateau with lateral meniscal injury in Schatzker IV-C tibial plateau fractures
BackgroundSchatzker IV-C is a high-energy tibial plateau fracture often accompanied by lateral meniscus injuries. While imaging examinations are...
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The majority of patellar avulsion fractures in first-time acute patellar dislocations included the inferomedial patellar border that was different from the medial patellofemoral ligament attachment
PurposeAccurate assessment of the locations of patellar avulsion fractures in acute patellar dislocations is clinically relevant for decision making...
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Lateral shift of the femoral condyle after total knee arthroplasty: simulation using 2D-templates of the medial pivot design on knee radiographs of young Japanese patients
BackgroundTotal knee arthroplasty (TKA) is an established surgical treatment for advanced knee osteoarthritis by which patients can expect...
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Surgery for patellar dislocation has evolved towards anatomical reconstructions with assessment and treatment of anatomical risk factors
PurposeIncreasing knowledge on the treatment of patellar dislocation has resulted in the development of new surgical techniques for patella...
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Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort study
PurposeThe aim of this study was to investigate whether the degree of patellar cartilage loss confirmed during index surgery affects the clinical and...
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A new method for evaluation of patellar height and the position of the joint line before and after total knee arthroplasty
BackgroundThe measurement of patellar height and restoration of the natural position of the joint line are crucial to total knee arthroplasty (TKA)....
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Factors that impact the patellofemoral contact stress in the TKA: a review
Abnormal retro patellar stress is believed to contribute to patellofemoral complications after total knee arthroplasty (TKA), but the causal link...
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Patellar facet ratio affects knee pain, stair climbing and stair descent after TKA without patellar resurfacing
PurposeTo determine whether knee pain or functional impairment after total knee arthroplasty (TKA) without patellar resurfacing are correlated with...
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Can double-level osteotomy prevent patellofemoral osteoarthritis progression compared with open wedge high tibial osteotomy?
PurposeTo compare radiographic, clinical, and arthroscopic findings in patellofemoral (PF) osteoarthritis (OA) between open wedge high tibial...
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In vivo knee rotational stability 2 years after the ACL reconstruction using a quadriceps tendon graft with bone block and bone–patellar tendon–bone graft
IntroductionThe aim of this prospective randomised study was to evaluate clinical results and rotational stability at least 2 years after...
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Intraoperative pivot-shift accelerometry combined with anesthesia improves the measure of rotatory knee instability in anterior cruciate ligament injury
PurposeThe knee stiffness acquired following an Anterior Cruciate Ligament (ACL) injury might affect clinical knee tests, i.e., the pivot-shift...
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Imaging evaluation of patellofemoral joint instability: a review
The multifactorial origin of anterior knee pain in patellofemoral joint disorders leads to a demanding diagnostic process. Patellofemoral...
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Comparison of different degrees of varus deformity correction with open-wedge high tibial osteotomy: a retrospective study over 5 years
ObjectiveThis study aims to investigate the clinical efficacy and complications associated with open-wedge high tibial osteotomy (OWHTO) in the...
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Satisfactory outcomes after one-stage revision anterior cruciate ligament reconstruction using rectangular tunnel technique
PurposeOne-stage revision anterior cruciate ligament reconstruction (ACLR) with the anatomic rectangular tunnel (RT) technique using bone–patellar...
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Patellofemoral Instability in the Pediatric Population
Purpose of ReviewThis review focuses on the etiology, diagnosis, and management of patellar instability in pediatric patients.
Recent Findings ...