(Fig 4-A.31) Three Types of Patellar MPFL Injuries at the Patella

https://youtu.be/2KfLDa4F2sE

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

 

 

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📌 Three Types of Medial Patellofemoral Ligament (MPFL) Avulsion Injuries at the Patella

• Generally, MPFL ruptures at the midsubstance or near the patellar attachment are treated non-surgically. 
• However, significant patellar MPFL avulsion fractures and femoral attachment MPFL disruptions may pose greater risks. 
• Skeletal immaturity can influence the injury pattern, with isolated patellar-based MPFL/chondral injuries being more common in skeletally immature patients.

 

1️⃣ Type P0: 

Ligamentous disruption at the patellar attachment (partial tear of femoral MPFL). 

 

2️⃣ Type P1: 

Bony avulsion fracture from the medial margin of the patella (small avulsion fracture of femoral MPFL), may involve a tear of the transverse component (tMPFL). 

 

3️⃣Type P2: 

Bony avulsion involving articular cartilage from the medial facet of the patella.

 

References:

• Knee Surg Sports Traumatol Arthrosc (2014) 22:2414–2418
• Knee Surg Sports Traumatol Arthrosc. 2018 Mar;26(3):677-684

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#MPFL, #PatellarAvulsionInjury, #KneeInjury, #PatelloFemoralJoint, #OrthopedicSurgery, #MRI, #SkeletalImmaturity, #LigamentousInjury, #AvulsionFracture, #ArticularCartilageInjury.