One hundred eighteen patients with symptomatic, isolated type II SLAP (superior labrum anterior-posterior) lesions were randomized to receive either labral repair (n=40), biceps tenodesis (n=39), or sham surgery (n=39). The primary outcomes of interest were the Rowe score (0-100) and the Western Ontario Shoulder Instability Index (WOSI) at 6 and 24 months. Secondary outcomes included the Oxford Instability Shoulder Score, pain change, EuroQol (EQ-5D and EQ-VAS), patient satisfaction, and complications. Outcomes were assessed up to 24 months postoperatively. Overall, the results revealed that all groups demonstrated significant improvement over time; however, there were no significant differences between labral repair, biceps tenodesis, and sham surgery in any outcome at any follow-up time point. These findings suggest that neither labral repair nor biceps tenodesis provided a significant clinical benefit over sham surgery in this population.