Compression- Distraction in the Correction of Shortening and Deformity of Extremities on Dischondroplasy

The aim of the study was to determine the significance of extrafocal osteosynthesis in the treatment of patients with dischondroplasy as well as the affect of distraction on chondromatosis foci. In 59 patients, age 6-17, extrafocal osteosynthesis was applied for correction of shortening and deformity of forearm (11), humerus (12), lower extremities (36). Three forms of dischondroplasy were distinguished: dysplastic, tumorlike, mixed. The technique of distraction osteosynthesis was changed depending upon the dischondroplasy form. Good results were achieved in 89% of patients. Histologic examination of dischondroplastic foci was performed at the different stages of surgical treatment. It revealed that no distraction neither led to ossification of chondromatosis focus nor stimulated its growth. By authors opinion the extrafocal compression-distraction osteosynthesis is the method of choice in treatment of patients with dischondroplasy.