Abstract
1. The record is presented of an attempt to treat osteochondritis dissecans on idealistic lines.
2. The operative technique to be adopted in the various circumstances likely to be encountered in the knee joint is described. Two cases affecting the talus are recorded.
3. The radiological appearance has become virtually normal in twenty-seven cases (the remaining four are recent); healing has been observed directly in seven cases in which a second operation to remove the means of internal fixation was necessary; and the patients' complaints have been eliminated, but the long term results of treatment are unknown.
4. Suggestions are made for possible developments in the technique of operation.