(Fig 4-A.16) Patella Alta and Patella Baja

https://youtu.be/O-xDCNAVqv0

https://youtu.be/vzxclU_34OI?si=B88NykUJHSELzyAC

 

==============================================

🎥 Check Out All Videos at Once! 📺

👉 Visit Visualizing MSK Blog to explore a wide range of videos! 🩻

https://visualizingmsk.blogspot.com/?view=magazine

📚 You can also find them on MSK MRI Blog and Naver Blog! 📖

https://mskmri.tistory.com/

https://blog.naver.com/mskmri

https://www.instagram.com/msk_mri/

Click now to stay updated with the latest content! 🔍✨

==============================================

 

📌 Patella Alta

• Patella Alta refers to an abnormally high position of the patella.
• Clinical Associations:
• Reference: Stoller's Orthopaedics and Sports Medicine, David W. Stoller, 2016

 

✅ Example:

• Patellar Sleeve Fracture: Unique to the pediatric population (8-12 years). These fractures involve the avulsion of the inferior pole of the patella, termed a “sleeve fracture” because a sleeve of unossified cartilage and bone is stripped off the lower pole of the patella.

 

---

📌 Patella Baja

• Definition: Patella Baja is characterized by an abnormally low position of the patella.

 

✅ Clinical Associations:

• Often seen with Osgood-Schlatter disease
• May result from patellar realignment procedures involving repositioning or shortening of the patellar tendon
• Can occur post-surgery (e.g., tibial tubercle transfers, total knee arthroplasty)

• Reference: Stoller's Orthopaedics and Sports Medicine, David W. Stoller, 2016

✅ Additional Notes:

• Patella baja is usually not associated with functional abnormalities.
• Adults with prior Osgood-Schlatter disease findings are more likely to have patella alta, which can lead to patellofemoral maltracking, chondrosis, and transient patellar dislocation.

➡️ References:

Stoller's Orthopaedics and Sports Medicine, David W. Stoller, 2016

Skeletal Radiol. 2021;50(7):1399-409

Radiographics. 2009 May-Jun;29(3):877-86

 

"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.

#PatellaAlta, #PatellaBaja, #KneeHealth, #OrthopedicSurgery, #SportsMedicine, #KneeInjury, #PatellarPosition, #KneeAnatomy, #MusculoskeletalRadiology, #OrthopedicEducation