We have operated on two patients 3 knees with dislocation of the patella, although their growth plate remained. Two were permanent dislocations and one was a habitual dislocation. We report the result of their surgery.
Case 1. A ten year old girl has habitual dislocation of the patella with right knee and permanent dislocation of the patella with left knee. Her right knee was operated on 18 months previorsly and left knee was treated 9 months ago.
Case 2. A thirteen year old girl has permanent dislocation of the left patella. Surgery was performed on her left knee 6 months ago.
Results of operation were excellent or good according to Macnab's criterion, but lateral shift was not improved. This was due to deformity of their joint surfaces and their Q-angle was large, and our operating method performs proximal realignment only.
Petients were satisfied with the results of our operation. We think that this technique is suitable for treating juvenile patients' patella dislocation.
