PURPOSE: The purpose of this study is to report our clinical experience in rare disease of flexor carpi ulnaris tendinitis. MATERIALS AND METHODS: Six patients were diagnosed as flexor carpi ulnaris tendinitis from November 1997 to Feburary 2001. They
were analysed for their symptoms, duration, radiologic findings, treatment, and results. RESULTS: Patients complained of tenderness on pisiform and resistance to wrist flexion. Ulnar deviation increased the symptoms. On carpal tunnel view, calcific
lesion around pisiform was visible in 3 cases. Additionally, whole body bone scan, tomogram, and MRI were also helpful for the diagnosis. Patients initially took conservative treatments which composed of NSAID medication, splint immobilization, and
steroid injection. In 3 cases without symptom improvement, pisiform excision was performed. Two patients completely recovered, but one patient had edema and tenderness at operated hand for 6 months after the operation. CONCLUSIONS: Flexor carpi ulnaris
tendinitis was diagnosed by physical examination and radiologic study. It was treated by conservative measures. When conservative treatment failed, the pisiform excision brought very excellent result without complications.