Aims: This study aimed to assess the outcome of arthroscopic debridement and removal of loose bodies from the elbows of patients with OCD of the capitellum who had previously failed non-operative treatment. Methods: Patients who had been treated arthroscopically for symptomatic OCD of the capitellum after failing non-operative management for 6 months were invited for review. They were assessed clinically, by an independent examiner using a modern elbow outcome score, and radiologically. In addition details of sporting involvement and satisfaction of outcome were ascertained. Results: 29 patients/elbows (91% follow up rate) were assessed at a mean follow up period of 77 months. There were 20 males and 9 females with an average age at operation of 22 years. There were no operative complications. 26 patients had none or mild pain and were able to complete activities of daily living with minimal impairment. 27 patients had been regularly involved in sports (Olympic and professional to recreational levels) only 4 of whom had to give up the sport because of ongoing problems. 5 of 6 elite gymnasts and 10 of 11 rugby players were able to fully resume their sport. 11 patients (38%) had recurrence of locking episodes. There was an average 5û loss of ßexion and a 10û loss of extension while the grip strength remained normal. Radiographs demonstrated that most of the capitella had not remodelled. 28 (97%) patients had a good or excellent outcome. Conclusions: This study has demonstrated that arthroscopic treatment of recalcitrant OCD of the capitellum is a safe procedure resulting in satisþed patients most of whom can return their previous level of sports but there is a risk of recurrent locking symptom.