Results of clubfoot surgery in myelomeningocele

Between 1974 and 1991, 100 equinovarus deformities in 65 patients with myelomeningocele have been primary operated at the authors clinic. Aim of our treatment was a plantigrade position of the foot, to give the possibility of an orthetic supply. 75% of our patients reached this result after the first operation, 25% had to be operated once more. The incision was done in the way of Cincinnati. According to the level and type of paralysis the operative treatment had to be adapted. We could reach good results of treatment in group 1 (thoracal to L2) with 64% of plantigrade feed as well as in group 3 (L5 to sacral) with 61%. Group 2 (L4 to L5) was worse with 32%. Within all types of paralysis there was a better result while doing a tenotomy. Paralysed muscles should be cutted, innervated muscles should be extended to keep the function. Important is the reconstruction of a balance of the muscles. While you have a forefoot varus, a plentiful medial release is necessary. After the operation a cast was given for 8 to 12 weeks, followed by special shoes and nightly storage in stales. Corresponding to the treatment of idiopathic equinovarus deformity the beginning of therapy should be started after birth and should be completed while the child begins to verticalise.