Overuse disorder that leads to damage to the patellar cartilage. Pain, stiffness and dysfunction in the knee and anterior leg.
Femur
is the large bone of the thigh
Tibia
is the large bone of the lower leg
Fibula
is the small bone of the lower leg
Patella
is the third bone of the knee joint
The Patellar Tendon
connects the patella to the tibia
The Patellar Tendon
covers the patella and continues up the thigh as the Quadriceps Tendon.
Medial Collateral Ligament
(MCL)ligaments found on the medial side of the knee
Lateral Collateral Ligament
(LCL) Ligaments found on the lateral side of the knee
The Posterior Cruciate Ligament (PCL)
lies behind the Anterior Cruciate Ligament(ACL).
Ligaments
connect bone to bone
Tendons
connect muscle to bone.
Menisci
sit between the femur and the tibia.
Menisci
referred to as the cartilages of the knee
Menisci
this material is about ¼ of an inch thick in most large joints.
Menisci
They work like a gasket
Menisci
They help the ligaments with stability of the knee
Articular Cartilage
is the material that covers the ends of the bones of any joint
Articular Cartilage
white, shiny material, has a rubbery consistency.
The function of articular cartilage
is to absorb shock and provide an extremely smooth bearing surface to facilitate motion
Articular cartilage
is everywhere that two bone surfaces articulate.
The bones of the knee are
the tibia, the femur, and patella
Tibia
Shin Bone
Femur
Thigh Bone
Patella
Kneecap
Synovium
produces a thick liquid called synovial fluid which is necessary to lubricate, protect and nourish joints.
ACL
originates near the back of the thighbone and ends at the front or anterior part of the knee
PCL
starts in the front of the thighbone and ends at the back or posterior aspect of the knee.
The Popliteal Artery
is located deep behind the knee.
ACL tears
Tears of the ACL deep inside the knee, common in football, soccer, tennis, basketball.
Collateral ligament tears
tear of the ligament to either side of the knee
Patellar Subluxation/Dislocation
this is when the patella moves out of place. Either lateral or medial along the femoral epicondyle.
Most knee subluxations
happen laterally due to a weak vastus medialis.
Bursitis
the inflammation of the bursa
Tendonitis
Inflammation of the tendons, around the knee is usually caused by overuse, infection or injury.
Osteoarthritis
Degenerative joint disease. Deterioration off the cartilage and irritation of the joint itself.
Loose Body
Usually happens after trauma resulting in a loose piece of cartilage or bone in the knee.
Baker’s Cyst
Swelling of the synovial tissue in the back of the knee that forms into a fluid filled mess, usually in the popliteal fossa on the medial side of the leg.
Meniscus tear
tearing of meniscus in the bone joint, usually caused by impact or repetitive overuse or trauma
Patellofemoral Syndrome
Overuse disorder that leads to damage to the patellar cartilage. Pain, stiffness and dysfunction in the knee and anterior leg.
Science Vocab 147928
