Abstract
Medial patellofemoral ligament (MPFL) reconstruction is a reliable surgical method for stabilizing a dislocating patella, with multiple techniques previously described. Although outcomes are generally favorable, the procedure is technically demanding and relies on precise identification of native MPFL insertion sites, secure fixation of the graft to these sites, and appropriate graft tension. We describe a technique for MPFL reconstruction with a looped semitendinosus tendon. The 2 free limbs of the graft are secured into blind-end patellar sockets with knotless anchors, and the looped end is initially secured into a medial femoral socket with a button on the opposite (lateral) cortex. Use of an adjustable-loop button allows for gradual adjustment of graft tension, as well as re-tensioning after cycling of the knee, before final aperture fixation on the femur with an interference screw.
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