What is a patellar sleeve avulsion?
Patellar sleeve (avulsion) fractures are rare injuries occurring in the skeletally immature population. This is an important diagnosis as the displaced bone-forming tissue will continue to grow and ossify, enlarging, and possibly duplicating the patella.
What is a sleeve fracture of patella?
Sleeve fracture is a particular fracture that occurs in children, where it comprises approximately half of all patellar fractures. It is caused by rapid muscle contraction and mostly affects children between 8 and 12 years of age.
What is the most common complication following patellar fracture surgery?
The most common complication after patellar fractures is a decreased range of motion (ROM). Infections, prolonged postoperative immobilization and improper rehabilitation are reported to be the main reasons.
What does avulsion mean in medical terms?
Definition of avulsion : a forcible separation or detachment: such as. a : a tearing away of a body part accidentally or surgically.
What is an avulsion fracture in the knee?
An avulsion fracture occurs when an injury causes a ligament or tendon to break off (avulse) a small piece of a bone that’s attached to it. The ligament or tendon also may be damaged. This type of injury can happen in the hip, ankle, knee, heel, elbow, or pelvis.
How is a broken patella repaired?
Two types of surgery may be done to repair a fractured kneecap: Open reduction-internal fixation (ORIF) surgery: The surgeon opens the skin and puts the broken bones back together with metal wires, pins or screws. Broken pieces of bone too small to be fixed are removed.
What is a patellar sleeve fracture?
Patellar Sleeve Fractures are rare injuries seen in children between 8 and 12 years of age characterized by separation of the cartilage “sleeve” from the ossified patella. Diagnosis is made with radiographs of the knee. Treatment is cylindrical casting for nondisplaced fractures with intact extensor mechanism.
What are the treatment options for patellar instability?
Treatment is nonoperative with bracing for first time dislocation without bony avulsion or presence of articular loose bodies. Operative management is indicated for chronic and recurrent patellar instability.
What does the MRI show for a patellar dislocation?
(OBQ07.30) An athlete sustains a traumatic patellar dislocation. The MRI shows a hemarthrosis with a floating osteochondral fragment. Which of the following is the most likely site of origin for the loose fragment?
Can a 12 year old break their patella?
Patella Sleeve Fracture. Overview patellar sleeve fractures are a rare injury seen in children between 8 and 12 years of age characterized by separation of the cartilage “sleeve” from the ossified patella most fractures are displaced and require treatment with open reduction and internal fixation.