Assertion: knee's ligament | /r/CapableOf | hold the patella
Facets:
value: to the femur
type: TRANSITIVE-OBJECT
Source sentences:
text: At full extension, there is no bony contact and stability is achieved by the medial retinaculum and the lateral retinaculum (ligaments that hold the patella to the femur) and balanced tension of the muscles of the quadriceps.