The glenohumeral joint is the most mobile joint in the human body. Shoulder stability is provided by static and dynamic stabilizers and load resistance is ensured by these stabilizers. [1] Damage to these structures leads to dislocation and recurrent instability. Traumatic anterior instability or dislocation of the shoulder joint usually results in avulsion of the anterior inferior labrum. Bankart defined this lesion as the "essential lesion" of shoulder instability. [2] In addition to Bankart lesions, lesions in different areas of the labrum can occur, such as superior labrum anterior to posterior (SLAP) lesions. Superior labral tears were first defined by Andrews et al. in 1985. [2] Then in 1990, Snyder [3] coined the term SLAP lesions. With SLAP lesions, the superior labrum detaches along with the biceps tendon and the labral tear extends anteriorly from the posterior superior labrum. Snyder further classified SLAP lesions into four categories and over time different types of SLAP lesions were added to Snyder's classification. [3-5] The etiology of SLAP lesions remains uncertain. There Objectives: This study aims to compare the clinical results of patients with traumatic isolated Bankart lesions and type V superior labrum anterior to posterior (SLAP) lesions after arthroscopic repair. Patients and methods: Patients who underwent arthroscopic repair for traumatic anterior glenohumeral instability were evaluated retrospectively between December 2014 and January 2019. Fifty-one patients (49 males, 2 females; mean age 25 years; range, 18 to 36 years) without bone defects affecting >20% of the glenoid fossa, off-track engaging Hills-Sachs lesions, multidirectional instability, or ligamentous laxity were included in the study. Group 1 had 31 patients with isolated Bankart lesions and group 2 had 20 patients with type V SLAP lesions. There were only two female patients in group 1 and all patients were male in group 2. The mean age was 25 years (range, 18 to 36 years) in group 1 and 25 years (range, 19 to 35 years) in group 2. Rowe, Constant, and Western Ontario Shoulder Instability (WOSI) scoring systems were used to evaluate the clinical outcomes of the patients preoperatively and at the last follow-up. Results: The mean follow-up time was 32 months (range, 12 to 48 months) in group 1 and 28.5 months (range, 12 to 42 months) in group 2. There were no statistically significant differences between the two groups in terms of the number of shoulder dislocations before the surgery, mean age at the time of surgery, and the mean time from the first dislocation to surgical treatment. When the Rowe, Constant, and WOSI scores were evaluated preoperatively and at the last follow-up, there were statistically significant changes within, but not between, the two groups. Conclusion: In type V SLAP lesions, the affected and repaired labrum surface area is larger than isolated Bankart lesions. However, as a result of appropriate surgical treatment, the affected surface area does not have a negative effect on clinical outcomes, and s...