Medial patellofemoral ligament double-bundle reconstruction using a double L-shaped medial patellar tunnel

Patellar instability is a common clinical problem encountered in orthopaedics. Double-bundle medial patellofemoral ligament (MPFL) reconstruction has become the most popular technique in MPFL reconstructions. However, the optimal method for graft fixation onto the patella remains controversial. In this article, we propose a new technique for double-bundle MPFL reconstruction using a custom-designed instrument. By using a Swan sagittal aimer to drill sagittal tunnels, two L-shaped tunnels are created. Double-bundle reconstruction is then performed. This technique makes the procedure more controllable, while retaining characteristics of an anatomic double-bundle MPFL reconstruction. We believe the technique of MPFL double-bundle reconstruction using a double L-shaped medial patellar tunnel is a new approach that is able to achieve stable and satisfactory results.