Wethelund J O, de Carvalho A
Int J Sports Med. 1985 Jun;6(3):174-5. doi: 10.1055/s-2008-1025834.
In a 21-year-old male breaststroke swimmer with characteristic symptoms in the medial aspect of the knee joint, synovial leakage suggesting medial capsular rupture caused by the whip kick was demonstrated arthrographically.