Clacaneal fractures involving subtalar joint can be associated with prolonged and severe disability. Many different methods have been tried for the treatment in order to search for better results.

From October 1987 to October 1989, five cases of calcaneal fractures involving subtalar joint were treated by open reduction and internal fixation, and the results were as follows:

1. The causes of fractures of the calcaneus were fall from a height in all five cases.

2. The medial approach was used usually and, when the anatomical reduction was impossible by medial approach only, the lateral approach was combined.

3. The average Bohlers angle was 4.6 before reduction and 24.6 after open reduction. The Bohlers angle was increased to average 20

4. Satisfactory results were botained in all but one, who was not followed up for over 1 year.

5. The open reduction and internal fixation through the medial approach was valuable treatment method of the intraarticular calcaeal fracture.