Brace treatment in idiopathic scoliosis.

A German multicenter study with consequent long-term follow-up of patients with idiopathic scoliosis after Milwaukee brace treatment in one out of seven Orthopaedic Clinics showed that brace weaning at the bone age of Risser 4 is followed by early loss of curve correction. According to Oberthaler et al. patients, who were furnished with a brace as outpatients, are inclined to practice a part-time wearing with different brace free intervals. In a longterm follow-up study of 328 patients with idiopathic scoliosis treated at the North German Scoliosis Center in Cuxhaven 123 compliant patients were examined 4 1/2 years after brace weaning. All were asked to wear their braces 23 hours a day and were weaned only at Risser 4-5 or Risser 5. The control rate was 93%. A gain of correction between 9 and 22% was the result. We analysed the composition of the group of 81 noncompliant patients. As far as we could find out the percentage of really non-compliant patients was only 19% compared with a total of 212 patients, who had finished their brace treatment at least 5 years ago. Eight patients (4%) with prebrace values of over 40 degrees Cobb had to be operated, though they were compliant. Based on these results, strict brace treatment in progressive idiopathic scoliosis is recommended, unless no more physiologic way of treatment is available.