Anatomy and Injuries of the Knee Joint

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Anatomy and Injuries of the Knee Joint
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Boney Anatomy of the Knee
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Anterior Boney Views of Right Knee with
Connective Tissues
Femur
Articular Hyaline Cartilage?
LCL?
?MCL
?Menisci
?Tibial Tuberosity
Tibia
Fibula?
?Interosseous Membrane
Bursal sac
Fat Pad
Bursal sac
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Anatomy of the Knee
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Anterior Right Knee
Vastus lateralis m.
Rectus femoris m.
Vastus medialis m.
Iliio-tibial band
Pes anserine
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Anterior Right Knee
Vastus lateralis m.
Vastus medialis m.
Infrapatellar fat pad?
lt- Patellar tendon/ligament
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Posterior Right Knee
Semimembranosis m.
Semitendinosis m.
?Illio-tibial Band
Gracillis m. -gt
Biceps Femoris m.
lt-Biceps Femoris m.
?Plantaris m.
?Gastrocnemius m. --medial head
Popliteus m.?
?Gastrocnemeus m.lateral head
?Soleus m.
Soleus m.
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Lateral Right Knee
?Illio-tibial band
Vastus lateralis m.
Biceps Femoris m.
?Extensor aponeurosis
Extensor digitoram longus m.
Peroneus longus m.
Anterior tibialis
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Medial Right Knee
Semimembranosis m.
Rectus femoris m.
Biceps Femoris m.
Semimembranosis m.
Vastus medialis m.
Gacillis m.
Plantaris m.
Patella
MCL
Patellar tendon/ligament
Gastrocnemius m.
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Cadaver view of Left knee and Lower Leg
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Superior view of the menisci. Bottom of picture
is front of right knee.
Intermeniscal ligament?
Lateral Meniscus
Medial Meniscus
Intermeniscal ligament?
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Cadaver view of menisci with inter-meniscal
ligaments
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Degrees of Meniscus Tear
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Displaced Bucket Handle Tear
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Degenerative meniscus tear
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Excision of Flap Tear Of Meniscus
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Mechanisms and Views-- Ligamentous Injuries of
the Knee
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Cadaver LCL
CadaverMCL
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MCL and ACL Resisting Medial or Valgus Force
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Grades of MCL Tear
Grade 1
Grade 2
Grade 3
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Medial and Lateral Collateral Ligament Motion
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Torn ACL-Creates Anterior Instability
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Indirect Twisting MechanismsACL Injury
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Direct mechanisms-ACL/PCL Injury

• Fall on a Deeply Flexed Knee
• Blow from the front, Deeply Flexed Knee
• Hyperextension
• Forced opening of Joint by Pressure from Soft
  Tissue

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Knee Joint MotionTension on the Cruciates
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ACL/PCL Animation
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Housemaids Knee
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Various Views of Osteochondritis Dessicans
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?
Loose Bodies
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Osteo-Chondral Fracture via MRI
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Angles of Extensor Mechanism Pull
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Anatomical Patellar Restraints
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Patella-Femoral Joint Motion
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Relative Motion of the Patella
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Normal Patellar Tracking vs. Subluxation
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Ballotable Patella
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Chondromalacia Patellae(Patello-femoral pain)
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Arthroscopic View Chondromalacia
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Dislocated Patella
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Patellar Tendon Injuries
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X-Ray-Ruptured Patellar Tendon
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Lateral Right Knee
?Illio-tibial band
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Mechanism of Illio-Tibial Band Tightness
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Mechanism of ITB Friction Syndrome
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Illio-Tibial Band Animation
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