A dislocation of the knee cap (patella) may occur on a single occasion and not require any surgical intervention. Some patients may however have repeated knee-cap dislocations in which case surgery will be considered. There are a range of surgical options depending on the anatomy of the individual patient and these include ligament (patello-femoral) reconstruction or a bone re-alignment procedure. Sometimes a combination of procedures may be recommended in order to increase the chance of a successful outcome. Patella stabilisation can be a complex area of orthopaedic surgery, particularly in patients with lax ligaments (sometimes referred to as being 'double-jointed.')