A patella dislocation occurs when your kneecap (patella) slides out of the groove at your knee joint. Your knee joint is a meeting of three bones: your thighbone (femur), shinbone (tibia) and patella in the middle. Normally, when you bend and straighten your leg, your kneecap slides up and down inside a vertical groove (the trochlear groove) between the bottom end of your femur and the upper end of your tibia. A network of tendons and ligaments secure your kneecap within the groove, flexing as it moves.
Types of patella dislocation:
Acute patella dislocation. Most of the time, a kneecap dislocation is an acute (sudden) injury caused by force. It’s a common injury, since your kneecap takes less force to dislocate than other joints.
Congenital patella dislocation. Rarely, a dislocated patella happens developmentally. Also called trochlear dysplasia, it occurs when your patella develops outside of the trochlear groove.
How can you tell if your kneecap is dislocated?
Patellar dislocation symptoms may include:
-An audible pop
-Buckling of your knee
I-ntense knee pain
-Effusion
-Bruising at your knee
-Locking of your knee
-Inability to walk
-The kneecap is visually out of place
Please contact us for more information.
Dr. Dev Padia.
Super-Specialist Orthopaedic, Fracture-Ligaments and Expert Joint Replacement Surgeon, Surat.