This article is part of our Fantasy Baseball Injury Report series.
After Tatis first subluxed his shoulder in early April, I warned that the chances of a subsequent subluxation would remain high until surgery was performed. Now nearly four months after the injury, the Padres have sent their emerging superstar to the injured list with another left shoulder subluxation. The latest injury occurred when Tatis awkwardly slid into third base in Friday's game against the Rockies. The shoulder was reportedly forced out of alignment and Tatis is now dealing with the resulting inflammation.
In my original breakdown of the injury, I discussed how a subluxation is often referred to as a partial dislocation. The difference between a subluxation and a dislocation sits in the degree of displacement. In a subluxation, the displacement is temporary and the involved joint often returns to its normal position almost instantaneous and without external assistance. A true dislocation occurs when the alignment of the bones of the joint are forcefully jarred out of their normal positioning and often remain displaced until help can be provided.
In both injuries, the primary concern is often for the neighboring structures of the joint. For a bone to leave its normal alignment, one or several of the soft tissues that surround the joint, like muscle, ligaments or cartilage, must fail. In a shoulder subluxation or dislocation, the labrum is often the primary culprit.
The labrum of the shoulder is a fibrocartilage ring that surrounds the head of the humerus and allows mobility while providing stability. Unfortunately, the labrum