[What has brought us the Colonna plastic? (author's transl)].

From 1960--1967 a series of 34 hip joints with high dislocation were treated by Colonna capsular arthroplasty. 28 hip joints were followed up. Clinical results revealed excellent results in 3 hip joints, good results in 5 hip joints, fair results in 14 hip joints and poor results in 6 hip joints. 15 hip joints were without complaints. Radiologically there was only one hip with an excellent result, 8 times the result was good, 10 times fair and 9 times poor. Poor results tended to occur in hip joints with bilateral involvement and when deformation of the epiphysis developed. The capsular arthroplasty may be a useful operation if there is a consequent preoperative traction, a consequent splinting after the operation, a good technique according to Colonna's regimen and if the child is between 3 and 7 years old.