No difference in revision risk between autologous hamstring graft less than 8 mm versus hybrid graft 8 mm or larger in anterior cruciate ligament reconstruction

Purpose Hamstring autograft (HA) is commonly used for primary anterior cruciate ligament reconstruction (ACLR). However, if the harvested HA is inadequate in diameter, it is often augmented with an allograft tendon, forming a hybrid graft (HY). This study sought to evaluate aseptic revision risk following HA versus HY ACLR. Methods A retrospective cohort study was performed using data obtained from our healthcare system’s ACLR registry. Patients ≤ 25 years of age who underwent primary isolated ACLR were identified (2005–2020). Graft type and diameter size was the primary exposure of interest: