Reconstruction of Patellar Tendon With Achilles’ Tendon Allograft for Patella Baja After Infected Anterior Cruciate Ligament Repair

Patella baja in patients presents with limited range of motion, pain in the patellofemoral joint, and decreased functionality of the knee. Patella baja can be a result of previous surgeries due to an alteration in the knee anatomy, infection, and adhesions, and it is usually accompanied by robust scarring. Possible surgical treatments of patella baja include arthroscopic debridement of adhesions, patellar tendon lengthening, excision of the inferior pole of the patella, and patellar tendon reconstruction using autografts or allografts. This Technical Note describes a technique for patellar tendon reconstruction in the setting of patella baja using an Achilles' tendon allograft after an infected prior anterior cruciate ligament repair.