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✅ Knee MRI Mastery/Chap 4A. Patelloefemoral joint

(Fig 4-A.01) Anatomy of the Medial Patellar Retinacular Complex/ Part 1

by MSK MRI 2024. 5. 29.

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📌 The Medial Patellofemoral Ligament Complex

✅  Primary Structure: The Medial Patellofemoral Ligament

  • Superior transverse portion from osseous groove between medial femoral epicondyle and adductor tubercle
  • Oblique decussation portion from proximal superficial medial collateral ligament
  • Two portions combine and insert onto medial patella

 

✅  Secondary Medial Stabilizers

1️⃣ Medial Quadriceps Tendon Femoral Ligament

  • Proximal to Medial Patellofemoral Ligament
  • Oblique fibers insert into distal quadriceps tendon
  • Contributes to stability in extension

 

2️⃣ Medial Patellomeniscal Ligament

  • Inserts into medial meniscus and distal patella pole
  • Seen as taut band in third layer of medial retinaculum
  • Typically inserts into anterior meniscal horn

 

3️⃣ Medial Patellotibial Ligament

  • Inserts into proximal tibia and distal patella pole

Patellar Insertions

  • Medial Patellotibial and Patellomeniscal may join or one insert proximal to the other

Tibial Insertion of Medial Patellotibial Ligament

  • At palpable medial tibial tubercle bony ridge
  • 5mm distal to joint line on radiographs

 

Radiographics. 2023 Jun;43(6):e220177

Skeletal Radiology (2022) 51:1381–1389

Am J Sports Med. 2018 Jan;46(1):153-162

Arthroscopy. 2017 Oct;33(10):1862-1873

Skeletal Radiol (2012) 41:137–148

 

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#kneeanatomy, #mpflcomplex, #medialpatellofemoralligament, #patellofemoralinstability, #kneeligaments, #orthopedicsurgery, #sportsmedicine, #patellartracking, #medialstabilizers, #kneepain

 

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