Abstract:

Objective　To evaluate the surgical feasibility and possible risks of reconstructing the medial patellofemoral ligament（MPFL） using the adductor magnus tendon，and explore the methods of the fixation techniques. Methods  Anatomical characteristics of adductor magnustendon, the medial patellofemoral ligament morphology, and peripheral vascular nerve adjacent relationship were observed on 30 cadaveric knees. The distance from adductor tubercle to the MPFL femoral attachment，and the distance from adductor tubercle to transitional part were measured. Surgical simulation was operated on the cadavers. Results    Length of adductor magnus tendon (distance from the adductor tubercle to the adductor hiatus) was (105±14)mm（77~129 mm），length of the medial patellofemoral ligament was (46±6) mm（33~57 mm)，the distance from the adductor tubercle to the MPFL femoral insertion was (9±2) mm(6~13 mm)，and the distance from the adductor tubercle to transitional part was (124±11)mm（102~144 mm）.     Conclusions    Fixation of graft with a length of 55 mm in the medial border of the patella for the reconstruction of the MPFL is feasible. Considering the anatomical risk on the operation，the adductor magnus tendon as a reconstruction graft of the MPFL is a good choice.

Key words: Patellar dislocation, Adductor magnus tendon, Medial patellofemoral ligament, Reconstruction operation