Abstract:[Objective] To investigate the clinical outcomes of anterolateral Gerdy tubercle osteotomy for reduction and fixation of later-al tibial plateau fractures. [Methods] From January 2020 to March 2022, 73 patients received the anterolateral Gerdy tubercle osteotomyfor reduction and fixation of the lateral condylar collapsed of tibial plateau fractures. Clinical and imaging data were evaluated. [Results]All the 73 patients successfully completed the operation without serious complications, and followed up for (15.4±3.9) months. As timeelapsed from the point preoperatively to that 3 months postoperatively and the latest follow-up, the HSS score [(26.1±5.2), (80.6±4.1),(89.4±3.2), P＜0.001], VAS score [(8.5±0.8), (1.3±0.4), (0.3±0.1), P＜0.001], knee ROM [(3.1±0.4)°, (120.4±4.7)°, (132.3±5.6)°, P＜0.001]were significantly improved. As for imaging, the medial proximal tibial angle (MPTA) [(89.3±1.0)°, (86.2±1.6)°, (86.1±1.5)°, P＜0.001], pos-terior tibial slope (PTS) [(9.0±0.8)°, (6.3±0.9)°, (6.2±0.8)°, P＜0.001] and Rasmussen score [(5.1±0.7), (17.4±0.4), (17.5±0.4), P＜0.001]were significantly improved. Up to the last follow-up, all patients had no nonunion, internal fixation loosening and broken. [Conclusion]The anterolateral Gerdy tubercle osteotomy for reduction and fixation of lateral tibial plateau fractures can reveal both lateral and posterolat-eral columns, with benefits of little soft tissue damage, simple operation and satisfactory short-term efficacy.