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Ana's knee
 

Ana's knee

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    Ana's knee Ana's knee Presentation Transcript

    • Ana’s Knee
    • Knee Structure - Bones
      3 bones:
      Femur (thigh bone)
      Knee cap (patella) - protects the knee joint and through tendons and ligaments supports the leg muscles
      Tibia (shin bone)
      Bones are connected to other bones by ligaments
    • Knee Structure - Ligaments
      • 4 ligaments:
      • Collateral
      • Lateral collateral ligaments (LCL)
      • Medial collateral ligament (MCL)
      • Cruciated
      • Anterior cruciated ligament (ACL)
      • Posterior cruciated ligament (PCL)
      • Ligaments: strong ropes to hold bones together and keep stability
    • Knee Structure - Ligaments
      A) LCL - limits sideway motion and runs along the outside of the knee.
      B) ACL - limits rotation and the forward motion of the tibia. Crosses from the back of the femur to the front of the tibia.
      C) MCL - limits sideway motion and runs along the sideway motion and runs along the inside of the knee joint.
      D) PCL - limits backward motion of the tibia
    • Knee Structure – Muscles and cartilages
      Quadricep Muscles - Large muscles at the front of the thigh that holds the patella against the thighbone.
      Patella Tendon - Attaches the patella to the tibia.
      Menisci - Cartilage pads that help distribute weight and force.
    • Knee Injuries
      Injured ligaments are considered "sprains" and are graded on a severity scale.
      Grade 1 Sprains. The ligament is mildly damaged in a Grade 1 Sprain. It has been slightly stretched, but is still able to help keep the knee joint stable.
      Grade 2 Sprains. A Grade 2 Sprain stretches the ligament to the point where it becomes loose. This is often referred to as a partial tear of the ligament.
      Grade 3 Sprains. This type of sprain is most commonly referred to as a complete tear of the ligament. The ligament has been split into two pieces, and the knee joint is unstable.
      If they're not treated at the time, ligament injuries may act up months or years later!!!! (hmmm, quiet possibly my case)
    • My Symptoms
      Instability
      Popping sound
      Inside of the knee hurts
      Crunching feeling when extend and flex my leg (right knee)
      Crack feeling when extend and contract leg (left knee)
      Pain in the middle of the knee, from the front (right knee)
      • Limitation of motion caused by pain and swelling. Limitations were seen in flexion and extension of the leg.
      • Noticed this after the injured knee has been held in one position for a while. I attempted to move the knee and gradually gained motion (very painful I must say).
      • Not “locking” but “gelling or stiffness” feeling.
    • My Symptoms
      Pop or snap and knee abruptly goes out. The initial burst of pain is usually sharp, it then becomes dull and aching.
      Knee doesn’t feel right – INSTABILITY, hence a “give away” feeling.
      It hurts when: ascending/descending hills or stairs, squatting, weight bearing, ballet plie position, after sitting for long periods of time with knee flexed (theater symptom), someone kicks (sigh).
    • Injuries (that I remember) so far…
      1998 – left knee. Playing soccer, hurt it by just running.
      2000 – left knee. Soccer, abrupt stop.
      2002 – left knee. Kick on the back.
      2003 – left knee. Soccer, fast twist in motion while running.
      2004 – left knee. Gymnastics, hurdle (skip step) before front attempting to perform a silly handspring.
      2004 – right knee. Gymnastics, hit the inside of the knee with balance beam while falling off in an attempt to perform an aerial.
      2009 – right knee. Soccer, my foot kind of entangled to another girl’s.
      2010 – right knee. Soccer side tackle.
      2010 – right knee. Uneven sidewalk, miss stepped and ankle rolled (no ankle sprain).
      2011 – left knee. While stretching in a split position (right leg in front), popped, it hurt but nothing compared to other times.
      2011 – right knee. Gave away while squatting to pick up something. So far the most stupid way of hurting it.
      WORST one ever!
    • Interesting Facts
      Acute knee injuries in sports include: contusions, sprains, strains, fractures, and dislocations.
      90% of the time ACL tear is misdiagnosed.
      Severe ligament injuries: hallmark sign of which is instability.
      Unanticipated moves can result in dynamic (musclotendinous) or static (capsilar, meniscal, ligament).
      A snapping, popping, ripping, or tearing sensation at the time of injury is generally indicative of a severe injury.
      After an injury knowing that full extension of the knee was possible practically preludes the possibility of a dislocation, locked, buckle-handed meniscus tear.
    • ACL Injury
      Largest numbers are sustained in the running/jumping sports: football, basketball, soccer, gymnastics.
      Usually is a result of a cutting, or turning maneuver or abrupt deceleration. Isolated tears of the menisci or ACL are usually a result of deceleration or rotational forces on the weight-bearing knee as may occur in any running or jumping activity.
      In jumping activities the injury is caused by a mislanding (not my case but worth to take a note).
      Isolated sprains or anterior cruciate ligament are almost never the result of contact or collision (contradicts with my right knee’s first and most devastating injury)
      A snap or pop during a deceleration or cutting maneuver implies ACL or meniscal injury until proven otherwise.
    • ACL Injury
      Symptoms:
      Pop/snap and knee abruptly going out. Athlete falls to the ground in SEVERE pain.
      Pain – usually sharp at first and then becomes dull
      Swelling – in the form of effusion of hemarthrosis
      Instability – knee doesn’t feel right
    • ACL Injury
      Past history may be contributory. Patellar subluxations and dislocations tend to be recurrent. Prior ACL tears may predispose to meniscal injuries.
      Any incomplete rehabilitated prior injury may render the knee vulnerable to recurrent
    • Chronic Anterior Knee Pain
      Past history may be contributory. Patellar subluxations and dislocations tend to be recurrent. Prior ACL tears may predispose to meniscal injuries.
      Any incomplete rehabilitated prior injury may render the knee vulnerable to recurrent
      Chronic Anterior Knee Pain – stems from either extensor mechanism problems or degenerative joint disease. Three conditions:
      Patellofemoral dysfunction – aka chondromalacia or runner’s knee
      Patellar tendinitis
      Osgood-Schlatter disease
    • Chronic Anterior Knee Pain
      Vastusmedialis muscle (smallest of the 4 components of the quads). Because of its direction of pull, it is the most important from the standpoint of positioning and stabilizing the patella.
      Successful treatment: strengthening, exercise.
      Patellofemoral dysfunction often is noted as a residual of an acute knee injury.
      Patellofemoral dysfunction – ascending/descending hills or stairs, squatting, weight bearing, ballet plie position, after sitting for long periods of time with knee flexed (theater symptom).
      Running and jumping is associated with all 3 conditions
      Patellofemoral dysfunction pain usually is localized in over the medial retinaculum (inside of the knee)
      Patellar tendinitis pain is usually located at the inferior pole of the patella (sounds familiar :/)
    • Chondromalacia Patellae
      Degenerative change in the articular cartilage of the patella.
      Caused by abnormal compression or shearing forces.
      4 stages:
      Articular cartilage shows softening or blistering
      Fissures appear in cartilage
      Fibrillation of the cartilage occurs
      Full cartilage defects are present and subchondral bone is exposed
      Treatment: medial quad strengthening, hamstring flexibility. Use a knee sleeve with a patellar cut-out.
    • Meniscus Tear
      Pain at the inside of the knee can indicate a tear to the medial meniscus. Pain at the outer side of the affected knee may indicate a tear to the lateral meniscus.
      Moderate-large tear
      Pain at the side or in the center of the knee
      Knee feel stiff and limit bending
      Sharp pain when twisting or squatting
      Pieces of the torn meniscus can float into the joint space. This can make the knee catch, pop, or lock
      Knee can also feel "wobbly" or unstable, or give way without warning
    • Conclusion: My suspicions…
      Either one or a combination of:
      ACL
      Some sort of chronic anterior knee pain, most likely patellofemoral dysfunction
      Medial meniscus tear
      MCL tear (?)
      Inside of the knee
      Ana: Get an MRI, end of story!!