OARA Score

Outpatient Arthroplasty Risk Assessment Score

OaraScore® addresses the most critical component of a successful outpatient / rapid discharge TJA program… patient selection.

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Reverse Shoulder Arthroplasty for the Treatment of Rotator Cuff Deficiency

We previously evaluated 94 patients (96 shoulders) who underwent reverse shoulder arthroplasty using a central compressive screw with 5.0-mm peripheral locking screws for baseplate fixation and a center of rotation lateral to the glenoid as treatment for end-stage rotator cuff deficiency…

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Tibiofemoral kinematics and condylar motion during the stance phase of gait

Accurate knowledge of the dynamic knee motion in-vivo is instrumental for understanding normal and pathological function of the knee joint. However, interpreting motion of the knee joint during gait in other than the sagittal plane remains controversial…

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Internal tribital rotation during in vivo, dynamic activity induces greater sliding of tibio-femoral joint contract on the medial compartment

Although extensive research has been conducted on rotational kinematics, the internal/external rotation of the tibio-femoral joint is perhaps less important for protecting joint health than its effect on joint contact mechanics…

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The knee joint center of rotation is predominantly on the lateral side during normal walking

The purpose of this study was to test the hypothesis of whether the center of rotation (COR) in the transverse plane of the knee is in the medial side during normal walking in a manner similar to that previously described during non-ambulatory activities…

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Dual-pivot bearings improve ambulation and promote increased activity levels in Total knee arthroplasty: A matchcontrolled retrospective study

Modern understanding of native knee kinematics reveals more complex pattern of lateral-pivot in early flexion activities, and medial-pivot in deeper flexion (i.e. dual-pivot)…

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A Dual-Pivot Pattern Simulating Native Knee Kinematics Optimizes Functional Outcomes After Total Knee Arthroplasty

Few studies on kinematics correlate patterns to functional outcomes after total knee arthroplasty (TKA). The purpose of this study was to determine if lateral pivot motion in early flexion and medial pivot in high flexion, simulating native knee kinematics, produces superior clinical outcomes…

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Achieving More Natural Motion, Stability, and Function With a Dual-Pivot ACL-substituting Total Knee Arthroplasty Design

Reports demonstrate up to 20% of total knee arthroplasty (TKA) patients are not satisfied and claim their knee does not feel normal. Failure to replicate native anterior cruciate ligament (ACL)-intact knee tibiofemoral kinematics and stability may contribute to this dissatisfaction…

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