The 17 patients with 22 resistant clubfeet were treated with modified Turco's operation with or without combining release of calcaneocuboid joint at Department of Orthopaedic Surgery, Hanyang University School of Medicine between 1896 and 1991. They were analysed preoperatively and postoperatively with chinical and radiological methods. In patients who were treated with combined procedures, the latetal talocalcaneal angle and anteroposterior talo-first metatarsal angle in radiological findings were showed better improvement(p<0.05), and anteroposterior talocalcaneal angle was also showed better improvement but not significant statistically, than those who were treated with modified Turco's operation alone. The final results of combined procedures were better than that of modified Turco's operation. And the most common characteristic physical findings in resistant clubfoot were small heel, deep longitudinal crease on the medial aspect of midfoot area and a single transverse crease on the posterior heel just proximal to the insertion of the tendocalcaneus. So we suggest these physical findings may be expectance for the resistance of the congenital clubfoot to conservative treatment, but it need further comparative study.