Abstract
1. A realignment operation is described for the treatment of recurrent dislocation of the patella.
2. In twenty-three patients (twenty-seven knees) operation prevented further dislocation. The physical and functional condition of the knees two to twenty years after operation is described.
3. Patello-femoral osteoarthritis was not a clinical complication in any of these patients. This finding is discussed.
4. Genu recurvatum developed in four patients operated upon between the ages of ten and thirteen years. The cause of this deformity is discussed. It is concluded that the realignment operation should not be performed under the age of fourteen years.
5. In three patients operation failed to control the recurrent dislocation.
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