Harrington's instrumentation as a salvage procedure for pseudarthroses in spine fusions for scoliosis.

From November 1963 to March 1966 twelve previously grafted spines were explored because of deterioration of the curve in the grafted area. The first spinal fusions had been done to stabilise the spine after correction of scoliosis. The techniques used were the Hibbs and the Moe methods of fusion. Pseudarthrosis was suspected whenever a curve did not become stable within six months of the original fusion operation. All spines in which deterioration occurred were re-explored. Pseudarthroses were discovered in all but three of these.