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Herniation of the Patellar Fat Pad Through the Patellar Tendon Defect After Autologous Bone-Patellar Tendon-Bone Anterior Cruciate Ligament Reconstruction

The most commonly used autogenous tissue for intraarticular ACL reconstruction is the bone-patellar tendon-bone (BPTB) graft. The use of BPTB autografts has been indirectly associated with or directly implicated in many postoperative complications : patellar fracture, patellar ligament rupture, patellar tendinitis, quadriceps muscle weakness, infrapatellar contracture syndrome, and arthrofibrosis. We report an interesting finding of herniation of the patellar fat pad through the donor site defect in the patellar tendon after autologous ACL reconstruction. To our knowledge, this is a previously unreported occurrence.