Knee Joint Movement and Kinematic Chains
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Knee Joint Movement and Kinematic Chains

Created by
@UnfetteredPine

Questions and Answers

What happens to the tibia during nonweight-bearing extension?

  • It moves in the opposite direction of the bone motion
  • It rotates laterally on the femur (correct)
  • It rotates medially on the femur
  • It remains stationary on the femur
  • What is the result of the screw-home mechanism during terminal extension?

  • The hip flexes
  • The femur rotates internally (correct)
  • The femur rotates externally
  • The tibia rotates medially
  • What occurs concurrently with terminal extension of the knee?

  • Knee unlocking
  • Hip extension (correct)
  • Hip flexion
  • Tibia rotation
  • What is the function of the iliofemoral ligament during hip extension?

    <p>It reinforces medial rotation of the femur</p> Signup and view all the answers

    What is the direct cause of knee unlocking?

    <p>Action of the popliteus muscle</p> Signup and view all the answers

    What is the direction of condyle slide during femur motion on a fixed tibia?

    <p>In the opposite direction of the bone motion</p> Signup and view all the answers

    What is the primary goal of controlled motion exercises?

    <p>To safely return to desired functional activities</p> Signup and view all the answers

    Why is it important to maintain strength in supporting muscles?

    <p>To protect and stabilize the joint</p> Signup and view all the answers

    What is the purpose of educating the patient?

    <p>To inform about the condition and recovery</p> Signup and view all the answers

    What is the benefit of using elevated seats on commodes and chairs?

    <p>To reduce mechanical stresses</p> Signup and view all the answers

    What type of exercises have been shown to improve functional outcomes in patients with OA?

    <p>Exercises that include strengthening, stretching, ROM, and stationary bicycle use</p> Signup and view all the answers

    Why are balance exercises important?

    <p>To reduce the incidence of falls</p> Signup and view all the answers

    What is the primary goal of instructing patients with OA or RA to perform active ROM and muscle-setting techniques?

    <p>To reduce painful symptoms that occur with initial weight bearing</p> Signup and view all the answers

    What is the recommended approach for patients with OA or RA?

    <p>Alternate activity with rest</p> Signup and view all the answers

    What was the primary outcome measure used in a randomized controlled study on patients with knee OA?

    <p>Distance walked in 6 minutes</p> Signup and view all the answers

    What is a precaution to consider when increasing joint range of motion?

    <p>Ensure the patient has sufficient strength to control the motion</p> Signup and view all the answers

    What type of techniques should be used for joint mobilization?

    <p>Grade III or IV sustained or oscillatory techniques</p> Signup and view all the answers

    In which joint positions should joint mobilization techniques be applied?

    <p>At the end of the available range</p> Signup and view all the answers

    What is increased hip adduction related to in females?

    <p>Increased knee valgus</p> Signup and view all the answers

    What is a neuromuscular risk factor that influences joint position and movement?

    <p>Neuromuscular control</p> Signup and view all the answers

    What is a structural risk factor that may affect ACL size?

    <p>Femoral notch size</p> Signup and view all the answers

    What is a difference in the ACL between males and females?

    <p>The female ACL is smaller than the male ACL</p> Signup and view all the answers

    What is a difference in muscle strength between males and females?

    <p>Females are weaker in hip and knee strength compared to males</p> Signup and view all the answers

    What is valgus collapse at the knee related to in females who have sustained an ACL injury?

    <p>Decreased use of the hip extensors</p> Signup and view all the answers

    What was the outcome of aerobic fitness at the 18-month follow-up in both groups?

    <p>It declined</p> Signup and view all the answers

    What is recommended as a nonpharmacological intervention to improve functional capacity of patients with symptomatic OA?

    <p>Referral to physical therapy services</p> Signup and view all the answers

    What factors determine the surgical procedure selected for managing knee arthritis?

    <p>All of the above</p> Signup and view all the answers

    When does functional ability typically surpass the preoperative level after arthroscopic débridement and lavage?

    <p>At 3 months</p> Signup and view all the answers

    What may have contributed to the postoperative group's functional limitations?

    <p>General physical deconditioning</p> Signup and view all the answers

    What is the primary goal of surgical options for managing knee arthritis?

    <p>To improve functional capacity of patients with knee arthritis</p> Signup and view all the answers

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