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Related Concept Videos

Knee Joint01:23

Knee Joint

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The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
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Bones of the Lower Limb: Femur and Patella01:16

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The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...
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Editorial Commentary: Knee Lateral Extra-articular Tenodesis.

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    Summary
    This summary is machine-generated.

    Lateral extra-articular tenodesis (LET) combined with anterior cruciate ligament (ACL) reconstruction may reduce pivot-shift instability. However, this combined approach does not significantly improve overall clinical outcomes compared to other methods.

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    Area of Science:

    • Orthopedic surgery
    • Sports medicine
    • Knee biomechanics

    Background:

    • Anterior cruciate ligament (ACL) tears are common knee injuries, often leading to anterolateral rotatory instability.
    • Lateral extra-articular tenodesis (LET) is a surgical technique sometimes combined with ACL reconstruction to address this instability.
    • The goal of combining LET with ACL reconstruction is to enhance knee stability and function.

    Discussion:

    • This study compared the efficacy of combined ACL reconstruction and LET with other ACL reconstruction techniques.
    • While both combined LET and double-bundle ACL reconstruction reduced the pivot-shift test, a subjective measure of instability, clinical outcomes were similar.
    • The findings suggest that LET may not offer a significant advantage in overall patient outcomes despite reducing specific instability measures.

    Key Insights:

    • Combining lateral extra-articular tenodesis (LET) with anterior cruciate ligament (ACL) reconstruction effectively reduces the pivot-shift phenomenon.
    • No significant differences in overall clinical outcomes were observed between combined LET and ACL reconstruction versus other ACL reconstruction methods.
    • Subjective instability tests like the pivot-shift may not fully correlate with broader clinical outcomes in ACL reconstruction patients.

    Outlook:

    • Further research is needed to determine the long-term efficacy and optimal indications for combining LET with ACL reconstruction.
    • Investigating objective measures of knee stability beyond the pivot-shift test is crucial.
    • Exploring patient-specific factors that might influence the success of combined LET and ACL reconstruction is warranted.