Avulsion fractures of the knee

Avulsion fractures of the knee are numerous due to the many ligaments and tendons inserting around this joint. They include ¹:

• anterior cruciate ligament avulsion fracture
• posterior cruciate ligament avulsion fracture
• avulsion of the medial collateral ligament
  • origin of MCL avulsion fracture: Stieda fracture
  • insertion of deep fibers: reverse Segond fracture
  • avulsion fracture of the deep fibers 
  • avulsion fracture of the insertion of superficial fibers of MCL: 5 cm below the joint line
• avulsion of the lateral collateral ligament:
  • origin of LCL: above popliteal groove
  • conjoined tendon:  fibular head below the tip, biceps femoris and insertion of LCL avulsion fracture
• arcuate ligament complex avulsion fracture (arcuate sign)
• Segond fracture
• iliotibial band avulsion fracture: Gerdy tubercle
• semimembranosus tendon avulsion fracture
• patellar fractures
  • quadriceps tendon avulsion fracture
  • patellar sleeve fractures
• chronic injuries
  • Osgood-Schlatter disease
  • Sinding-Larsen-Johansson syndrome
  • Jumper's knee

See also

• avulsion injuries