1 / 15

Comprehensive Guide to Knee Anatomy and Function

Explore the intricate details of the knee joint complex, including bone structure, ligaments, musculature, and common injuries. Understand the dynamic stability system that supports this crucial joint in the body.

philipgodfrey
Download Presentation

Comprehensive Guide to Knee Anatomy and Function

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Knee Anatomy Mazyad Alotaibi

  2. The Knee Joint Complex • Tibiofemoral Joint* • Patellofemoral Joint* • Tibiofibular Joint • Capsular Pattern – Greater loss of flexion than extension

  3. Bones • Femur – condyles covered with articular cartilage, intercondylar groove, patella groove • Tibia – bifid plateau • Patella – medial and lateral articulating facets -increases the lever arm of the quadriceps -increases the distribution of compressive force on the femur in full flexion

  4. Ligaments Strong ligaments provide the static stability system for the knee

  5. MCL & LCL • Provide medial/ lateral stability and prevent excessive external rotation of the tibia • Frequently injured on the joint line • MCL – Frequently injured by an external rotation strain • Has deep and superficial fibres • LCL – Frequently injured by adduction blow to the knee

  6. ACL • Ant part of intercondylar area • Up, back, lateral • Med asp of lat fem condyle

  7. ACL & PCL • Provide ant / post stability of the knee • ACL – also controls rotation • Commonly injured by forced internal rotation of the femur on a fixed tibia and flexed knee • PCL – strongest -Commonly injured in flexion with an anterior force

  8. Joint capsule – attached to the medial meniscus and MCL • Coronary Ligaments – bind the menisci to the tibia

  9. Menisci • Lateral and medial • Peripherally thicker than central • Transverse lig attaches • Increase stability • Shock absorbing • Lubrication and nutrition • Injured during twisting activities

  10. MusculatureDynamic stability system of the knee

  11. ITB – anterior and lateral stability and prevent excessive internal rotation of the tibia • Quadriceps – Lat vs med to maintain patella in groove • Sartorius and Gracilis – medial stability, knee and hip flex

  12. Hamstrings • Prevent anterior displacement of the tibia • Pes anserine – sartorius, gracilis and semitendinosis. • Biceps femoris • Primarily produce knee flex and also external rotation of the tibia

  13. Gastrocnemius – primarily ankle flexor also assists with knee flexion • Popliteus – WB external rotation and extension of the tibia • Attaches to the posterior horn of the lateral meniscus and pulls back the posterior horn to unlock the knee

  14. Bursa • Suprapatellar – continuation of the synovial sac • Prepatellar • Deep and superficial infrapatellar • Also semimembranosus and med head of gastroc, • Gastroc heads and capsule • Pes anserine tendon

  15. Surface markings • Joint line • Medial collateral ligament • Lateral collateral ligament • Medial coronarys • Gerdy’s Tubercle • Pes Anseurine Bursa

More Related