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Knee Injuries

Knee Injuries. Knee Anatomy. Bones Femur, Tibia, Patella Ligaments Anterior Cruciate Ligament (ACL) Posterior Cruciate Ligament (PCL ) Cruciate = Crossing Medial Collateral Ligament (MCL) Lateral Collateral Ligament (LCL ) Collateral = support / at the side Meniscus

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Knee Injuries

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  1. Knee Injuries

  2. Knee Anatomy Bones Femur, Tibia, Patella Ligaments Anterior Cruciate Ligament (ACL) Posterior Cruciate Ligament (PCL) Cruciate = Crossing Medial Collateral Ligament (MCL) Lateral Collateral Ligament (LCL) Collateral = support / at the side Meniscus Medial and lateral Meniscus

  3. MCL Tear Valgus forces Swelling over the medial joint line Decrease in ROM Grade 2 or higher should be placed in a straight leg immobilizer with crutches Typically does not require surgery for repair

  4. http://www.sportsmd.com/SportsMD_WatchVideo/vid/313.aspx http://www.youtube.com/watch?v=j_Mdm4v-ty8&feature=results_video&playnext=1&list=PLDD2266210072D934 http://www.youtube.com/watch?v=wPSXIltT0Bs (MUTE)

  5. LCL sprain Rare injury Very awkward mechanism Varus force the angle pointing away from the midline Force from the medial side of knee No surgery RG III http://espn.go.com/nfl/story/_/id/8729737/robert-griffin-iii-washington-redskins-does-not-major-knee-injury

  6. http://www.youtube.com/watch?v=ubP-1WaFeEc

  7. PCL sprain Very rare May not need to be repaired Strongest but least important ligament in the knee Hyperflexion Often occurs when falling with a bent knee Common in car accidents when the knee hits the dashboard Posterior Drawer Test

  8. http://www.youtube.com/watch?v=lpIOMuqXWrE&feature=related ACL sprain Contact or non-contact Usually considered a “cutting” injury “pop” with immediate dysfunction Usually associated with meniscus injury 95% of cases require some surgery for return to sports 6 to 8 month rehabilitation Autograft vs. Allograft http://www.youtube.com/watch?v=QrvHzaDxBug&feature=related

  9. Meniscus “cartilage” Shock absorbers Increase joint congruency Increase joint stability Injury Mechanism Rotation Extreme knee flexion

  10. http://www.youtube.com/watch?v=WuVHWZX91KY

  11. Meniscus Tears

  12. Knee Rehabilitation Decrease swelling/ecchymosis/pain Increase ROM Increase strength Within 85% of the uninvolved leg Increase weight bearing Increase function Return to partial activity Return to full activity

  13. Patellofemoral Joint

  14. Dislocated Patella

  15. PCL • Posterior Drawer • Meniscus • McMurray Test • Bounce Home • Patellofemoral Tests Special Tests for the Knee ACL Lachmans Anterior Drawer Pivot-shift MCL Valgus Stress Test LCL Varus Stress Test

  16. What happens if you need a knew knee? • Knee Replacement Surgery

  17. Knee Injuries • Rugby is dangerous to the knees. • Basketball Dislocation. • The U. • Houston’s football team is terrible.

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