Assertion: collarbone dislocation | /r/CreatedBy | either a direct trauma
Facets:
value: to the knee
type: OTHER
value: usually
type: DEGREE
Source sentences:
text: Patellar dislocation is usually caused by either a direct trauma to the knee (e.g. a helmet hitting the knee) or from a sudden twist or pivoting of the leg (e.g. a ballet dancer landing poorly).