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Analysis on the results from percutaneous extensor osteotomy of the distal femur in patients with amyoplasia Please cite this article as: Moreira MV, Rimoldi AC, Aoki S. Análise de resultados da osteotomia extensora percutânea de fêmur distal em pacientes com amioplasia. Rev Bras Ortop. 2014;49:345–349. ☆☆ ☆☆ Work performed at the Congenital Malformation Clinic, Associação de Assistência à Criança Deficiente, São Paulo, SP, Brazil.

Objective:

to review the medical files of 19 patients with a diagnosis of amyoplasia, who underwent percutaneous extensor osteotomy of the distal femur to correct deformities in whom the knees were fixed in flexion.

Methods:

we analyzed 37 osteotomy procedures on 35 knees that presented an initial deformity in which the knees were fixed in flexion at 33.8°. All of these knees underwent percutaneous extensor osteotomy of the distal femur and were followed up for a mean period of 73.7 months.

Results:

we observed recurrence of the deformity in 29 osteotomy cases, i.e. in 78.4% of them. The mean recurrence velocity of the deformity was 0.69°/month.

Conclusion:

percutaneous extensor osteotomy of the distal femur provided sufficient correction of deformities in which the knee was fixed in flexion in these amyoplasia cases, but there was a significant degree of recurrence among the patients analyzed.

Arthrogryposis; Osteotomy; Knee


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