Patellafraktur
Patellafraktur, or patellar fracture, is a break of the patella, the kneecap. It most commonly results from direct trauma to the knee (such as a fall onto the knee or a dashboard injury) or from a strong, sudden contraction of the quadriceps with the knee flexed. Fractures are classified by pattern (transverse, vertical, comminuted) and by displacement (displaced vs nondisplaced) and may involve disruption of the extensor mechanism.
Clinical presentation includes knee pain and swelling, difficulty or inability to straighten the leg, and often
Diagnosis relies on radiographs of the knee, typically including anteroposterior, lateral, and a specific skyline or
Treatment is guided by fracture type and extensor mechanism integrity. Nondisplaced or minimally displaced fractures with
Prognosis is generally favorable with appropriate management, but complications can include knee stiffness, maltracking, posttraumatic osteoarthritis,