Abstract
We reviewed the results of 15 knees in 11 patients who underwent semitendinosus transfer (Uezaki's procedure) at Fukuoka Chilyden's Hospital and Medical Center from 1983 to 1996. Five patellae were permanent dislocations, 2 were recurrent and 8 were habitual. The mean age at the time of the operation was 8.1 years, and we examined the results after an average follow-up period of 5.3 years.According to our own clinical evaluation methods, the results were satisfactory in 12 knees and unsatisfactory in 3 knees.We examined the sulcus angle, tilting angle, congruence angle and the lateral shift ratio on X-rays. Most angles and ratios decreased except in the 3 unsatisfactory cases.In the 4 unilateral cases, we found that the earlier surgical reduction was performed on the patella, the better the improvement in the shape of the sulcus of the patellar groove.For the purpose of earlier diagnosis, we examined patello-femoral congruity on MRI scans of 1 case with nail-patella syndrome whose patella was not able to be viewed on X-rays.We concluded early diagnosis and operative reduction was extremely important for the treatment of dislocation of the patella in children.
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