Abstract
1. Previous reports of the role of the quadriceps in producing limitation of movement or dislocation of the patella have tended to implicate one particular part of the complex. Experience gained in thirty-five quadricepsplasties in children has shown that all parts of the quadriceps (except vastus medialis) and the ilio-tibial band also may play a part and that each of these must be attended to if a satisfactory result is to be obtained.
2. A simple technique of operation is described and illustrated.
3. Since this paper was prepared, a patient showing features of particular interest has been seen and treated.