Pi Day (March 14) is a day of global mathematical celebration, but it’s not the only numerically significant calendar date.

Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme.

For years, total joint replacements were almost exclusively indicated for patients older than 65 years due to the increased risk for complications and revisions in younger patients. AMELIA ISLAND, Fla ...