The Knee - PSAU

The Knee - PSAU

The Knee Anatomy Mazyad Alotaibi The Knee Joint Complex Tibiofemoral Joint* Patellofemoral Joint* Tibiofibular Joint Capsular

Pattern Greater loss of flexion than extension 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 Ligaments Strong ligaments provide the static stability system for the knee

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 ACL Ant part of intercondylar area Up, back, lateral Med asp of lat fem

condyle 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 Joint capsule attached to the medial meniscus and MCL Coronary Ligaments bind the menisci to the tibia

Menisci Lateral and medial Peripherally thicker than central Transverse lig attaches

Increase stability Shock absorbing Lubrication and nutrition Injured during twisting activities Musculature Dynamic stability system of the knee 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 Hamstrings

Prevent tibia anterior displacement of the Pes anserine sartorius, gracilis and semitendinosis. Biceps

femoris Primarily produce knee flex and also external rotation of the tibia 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 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 Surface markings Joint

line Medial collateral ligament Lateral collateral ligament Medial coronarys Gerdys Tubercle Pes Anseurine Bursa

Recently Viewed Presentations



    Ian Mcloughlin is currently Ipswich Towns No2. Nathan Dean. Manchester City. ... Rob Soto's REPS and Crossbar Soccer, to provide Jags Players with high level training programs, top summer camps, and Jags Summer Select. Jags would like to give back...
  • A Solid Modelling Fable - IIT Bombay

    A Solid Modelling Fable - IIT Bombay

    Modeller Operations Representations Torus Lock Slanted Torus Bearing Solid Model of an Ice-Cream Machine Human Cortex Manual Surface Sampling,/ model consists of 24,000 planer facets The above surface model was created by using the software tool (Nuages) by Bernard Geiger...
  • Baroque Music

    Baroque Music

    Organ or harpsichord continuo to build up chords on a bass line (figured bass), Effects of contrast- dynamics and textures. Ribbons of sound- oboes and trumpets against strings, or Blocks of sound- contrasting groups- strings then wind then tutti (all)...
  • Planning for FirstNet in Maryland

    Planning for FirstNet in Maryland

    Install new console systems at MEMA-MJOC, SHA SOC, SYSCOM/EMRC) Complete ... Approximately 4,000 federal users now on the system or planning to use Maryland FiRST in future for interoperability. ... logistical, and other support for local governments during extraordinary events,...
  • The American Journey

    The American Journey

    Under which branch of government are laws made? A. The legislative branch B. The executive branch C. The judicial branch Debate and Adoption After a much heated debate, the states ratified the Constitution. Before the Constitution could go into effect,...
  • Designing Research Instruments

    Designing Research Instruments

    The origins of experimental approaches in agriculture and botany. borrowing 'scientific methodology' in the context of growing crops, where all or at least most variables could be controlled; all can be held constant while variations are introduced one at a...
  • Basic Navigation - Air Cadet Central

    Basic Navigation - Air Cadet Central

    Basic Navigation Lecture 2 ACP32 Vol2 Basic Navigation By the end of this lecture you should know: The anatomy of a typical compass How to set a map with a compass Taking a bearing Resection Anatomy of Compass Anatomy of...
  • Controls Interface to Electronics

    Controls Interface to Electronics

    Controls Interface to Electronics Boards Credit-Card PC and Local Control bus Beat Jost Cern EP