The CREST trial is necessary because as hip arthroscopy continues to grow in popularity as the primary treatment for FAI there will be continued debate on how to handle the hip capsule after surgery, unless studies like this are performed. There is still no compelling evidence on the importance of hip capsule repair following arthroscopic hip surgery. Randomized controlled trials like the CREST trial are the only feasible way to determine its importance and determine if there is a difference in clinical outcomes following hip arthroscopy in patients who receive a capsular repair versus those who do not.