Definition of phlegm for English Language Learners. : 1  a thick, yellowish liquid that is produced in the nose and throat especially when a person has a cold. : 2  calmness in a difficult or unpleasant situation.
Kneecap (Patellar) Subluxation. A subluxing patella (kneecap) is a temporary, partial dislocation of the kneecap from its normal position in the groove in the end of the thigh bone (femur). This groove is located between two bumps at the end of the thigh bone called the femoral condyles.
Because ruptured ligaments often do not hold sutures well so a prosthetic ligament or internal splint (figure of 8 wire between two screw heads) can protect the repair early on. Distinguish between luxation and subluxation. Luxation is complete dislocation whereas subluxation is partial dislocation.