Patellofemoral Dysplasia
Patellofemoral dysplasia is assessed on 3 ctiteria:

  • Patellar tendon – patella ratio > 1.5
  • Increased TTTg – greater than 20mm
  • Shallow notch


Some quote a ratio of >1.3 indicating patella alta however this is rather non selective

The TTTG is the equivalent of the Q angle

Notch depth should be greater than 3mm

Apart from trauma and cartilage disease, disorders of the patella are uncommon. Variants such as bipartite patella and the less common dorsal patellar defect need to be recognised. The patella may be affected by gout, infection, pagers disease and chondroblastoma
Assessment of PTR
Assessment of TTTG
Images
Patella Alta
Dysplastic notch
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Meniscal Tears
Cruciate Ligaments
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Collateral Ligaments
Anterior Knee pain
Hoffas fat Pad Masses
Cartilage
Knee
Shoulder
Elbow
Wrist & Hand
Hip
Knee
Ankle & Foot
Home
Dysplasia
Patellar Tendon
Quadriceps
Maltracking
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