Experience of Batchelor's extra-articular subtalardesis on planovalgus feet on C. P. children

Results and problems of 12 feet in 6 cases operated on by Batchelor's procedure were investigated. At the same time those of 14 feet in 10 cases were compared. The results of Batchelor's procedure by our criteria were as follows; 4 excellent, 3 good and 5 poor. 4n the othr hand those of Grice & Green's procedure were 4 excellent, 7 good and 3 poor. X-ray diagnosis is useful to judge the degree of the correction. This procedure has several advantages such as easy technique, firm fixation and the least influence on the bone growth, and must be indicated for those of reduced ones. It is necessary for us to observe the postoperative course to prevent the fracture of the graft and muscle unbalance.