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📌The Prepatellar Quadriceps Continuation
- Formed by anterior fibers of rectus femoris tendon
- Inserts onto superior patella, then continues distally
- Adheres to anterior patellar surface via fibrocartilaginous enthesis (#fibrocartilage, #enthesis)
- Joins patellar tendon, inserting onto tibial tuberosity
✅ Fibrocartilaginous Attachment
- Thin fibrocartilage layer covers patellar surface at continuation
- Reduces friction against overlying tendon fibers
- Small, loosely attached amount at patellar attachment
- Tendon transitions through zones: dense connective tissue, uncalcified fibrocartilage, calcified fibrocartilage, bone
✅ Imaging and Injury
- Normally no space between continuation and patella
- With injury, thin fluid line may be seen (distinct from bursitis)
- Understanding anatomy aids in evaluating extensor mechanism injuries
References:
RadioGraphics 2018; 38:2069-2101
AJR 2009; 192:W111-W116
Magn Reson Imaging Clin N Am 22 (2014) 601-620
"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery"
© 2022 MSK MRI Jee Eun Lee All Rights Reserved.
No unauthorized reproduction, redistribution, or use for AI training.
#prepatellarquadricepscontinuation, #quadricepstendon, #patellartendon, #fibrocartilage, #enthesis, #tendonboneinterface, #extensorinjury, #patellarinjury, #kneeanatomy, #radiology
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