INTRODUCTION: Ulnar wrist pain due to a TFCC lesion is frequent. Based on studies of the vascularity, ulnar avulsion can be sutured. Arthroscopic techniques have been designed but results are sparsely published. MATERIALS AND METHODS: This is a retrospective study of 35 patients with an ulnar avulsion of the TFCC. All the patients were treated with an originally designed arthroscopical technique. The evaluation was focused on the subjective and functional ouome. A pain score and a DASH score were used. RESULTS: The general impression was positive with a mean DASH score of 15 points. Two-thirds of the patients had a DASH score totaling less than 20. Twenty-nine patients had a good outcome, six were fair or poor. CONCLUSION: Arthroscopical repair of the TFCC is a reliable and useful technique.