The phrase “out indefinitely” has been in the sports-injury vernacular since time immemorial, though its meaning and use is, at times, purposefully obscure. The definition should be straightforward, ...

Subluxation is another word for partial dislocation of a bone. Patellar subluxation is a partial dislocation of the kneecap (patella). It’s also known as patellar instability or kneecap instability.

A shoulder subluxation refers to a partial dislocation of the shoulder joint. A shoulder subluxation occurs when the ball of the upper arm bone, called the humerus, partly comes out of the glenoid ...

Shoulder instability occurs when the arm’s ball joint moves in and out of the shoulder socket joint. Chronically unstable shoulders can lead to loose shoulder joints that slip out of place repeatedly.