The PIP joints are the middle joints of the fingers. They are shaped as double domes side by side on the hand side of the joint and two side by side matching shallow curves on the finger side. This allows mobility in bending and straightening but stability in sideways and twisting movements.What is PIP joint arthroplasty?
Arthroplasty for toe joint deformities typically refers to what is called a “PIP joint arthroplasty,” a procedure that is done for correction of hammer and claw toe deformities. This surgery involves making an incision on the top of the toe joint nearest the foot and removing the end part of the first toe bone (condyles of the first phalanx).What is a PIP joint sprain?
Injury to the PIP joint is one of the most common injuries the hand sustains and can occur as a sprain or a complete tear of the ligament - resultant of an activity that causes the joint to hyperextend - as well as a dislocation. A sprain represents a ligament that has been stretched and partially torn.