A source of stability and mobility, the hip can withstand a lot of abuse before becoming seriously damaged. When injury occurs no one is happy and movement is often stressful. Fixing and repairing the injured hip is covered in this issue. Chapters in this issue cover hip fractures, stress fractures, instability, impingement, rehabilitation, arthritis, tears, arthroscopy and the athletic hip. Key words: hip arthroscopy, acetabular labral tears, intraarticular injuries, pediatric athletic hip disorders, neuromuscular hip pathology, dislocation, subluxation instability, femoroacetabular impingement syndrome