OBJECTIVE: To investigate whether orthopedic and traumatology residents who are undergoing training achieve competence in surgical techniques after completion of their specialization and to determine whether there are significant differences between the responses of residents from accredited and nonaccredited institutions. METHODS: A total of 131 orthopedics and traumatology residents from nine institutions in the İstanbul province answered the questionnaire during the morning training meeting. In addition to basic demographic data, level of seniority, equipment competence, and theoretical and practical training, the residents were asked about their opinion on what type of surgeries they could perform after their specialization, considering the surgery and follow-up of the case as well as the complications occurring during this period. The residents responded to questions on 46 surgeries under the main headings of trauma, arthroscopy, arthroplasty, spine, pediatric orthopedics, hand surgery, deformity, and bone and soft tissue tumors. In addition to descriptive statistical methods, one-way analysis of variance, Tukey's multiple comparison test, and chi square test were used to evaluate the data. The significance level for the results was set at p<0.05. RESULTS: In total, 131 orthopedics and traumatology residents answered the questionnaire. Furthermore, 53 (40.5%) specialization students were employed at accredited institutions and 78 (59.5%) at nonaccredited institutions. According to the responses, case presentations, article-writing sessions, and in-province meetings held regularly at accredited institutions showed a significant difference compared to non-accredited institutions (p<0.05), and the residents at the accredited institutions benefited significantly more from the availability of books and electronic media in gaining theoretical knowledge (p<0.05). When the responses of the residents from accredited and nonaccredited institutions regarding 46 different surgeries were compared, a significant difference was found in 17 of them (p<0.05). There was a significant difference between the averages of residents' responses on the surgical fields they have interest for (p<0.05). It was determined that the residents believed that they could mostly perform surgeries in the fields of trauma, followed by arthroplasty, deformity, arthroscopy, pediatric orthopedics, hand surgery, and spine and tumor surgery. According to their level of seniority, a significant difference was found between the averages of residents' opinions regarding their surgical skill levels (p=0.02). CONCLUSION: We believe that it would be beneficial for the trainers to take necessary precautions to increase the skill levels of the residents of orthopedic surgery. Accreditation significantly contributes to the standardization of education as well as quality improvement. Further action should be taken to increase the number of accredited clinics.