United States: Alaska; Subnational exclaves. Exclaves of administrative divisions below the national level. Many of the cantons of Switzerland have exclaves: Bern has two small exclaves, MÃ¼nchenwiler and Clavaleyres; the first is entirely surrounded by Fribourg, the second by Fribourg and Vaud's exclave.
If you had femoroacetabular impingement, symptoms might include: 1  intermittent groin or hip pain. 2  pain that spreads to the thigh, buttock or lower back. 3  pain that typically develops gradually (can be sudden if it follows an injury)  pain that intensifies with specific 1  movements. sharp, catching or locking hip pain.  giving way or buckling of the hip.
Femoroacetabular Impingement (FAI) Femoroacetabular impingement (FAI) is a condition where the bones of the hip are abnormally shaped. Because they do not fit together perfectly, the hip bones rub against each other and cause damage to the joint. The hip is a ball-and-socket joint. The socket is formed by the acetabulum, which is part of the large pelvis bone. The ball is the femoral head, which is the upper end of the femur (thighbone). A slippery tissue called articular cartilage covers the surface of the ball and the socket.