To prevent the disability after injuries of the tarsometatarsal joint(Lisfranc joint), the accurate diagnosis and anatomic reduction and its maintenance are essential. The authors analysied the twenty cases with injuries of Lisfranc joint treated at Seoul Paik Hospital from Feb. 1987 to Apr. 1991, which showed the following results. 1. The most common cause of the injury was traffic accident(55%) and the associated injury was so common. 2. According to the Hardcastle's classification, the injuries were classified as follows: total incongruity in 4 cases(20%), partial incongruity in 12 cases(60%), and divergent congruity in 4 cases(20%). 3. For the accurate diagnosis, simple X-ray, the stress films(eversion-pronation, inversion-supination), tomography and computed tomography were necessary. 4. Six cases which were treated with open reduction and multiple pinning had the results as follows: good in 2 cases, fair in 3 cases and poor in 1 case. Fourteen cases which were treated with closed reduction and cast immobilization or percuteneous pinning showed the results as follows: good in 6 cases, fair in 7 cases and poor in 1 case. 5. The anatomic reduction and its maintenance, whether achieved by closed or open means seem to lead to the good results in long-term follow-up.