The primary objective of this clinical trial is to evaluate the efficacy of robotic-assisted surgery in the management of posterior cruciate ligament (PCL) avulsion fractures involving the tibial insertion site of the cruciate ligament. Specifically, the study seeks to determine: (1) whether robotic-assisted surgery yields superior anatomical reduction accuracy-particularly in restoring the native position of the tibial avulsion fragment-compared with conventional open reduction and internal fixation (ORIF); and (2) whether such improved precision translates into enhanced long-term functional recovery of the knee joint.
Age ≥ 18 years
Acute closed tibial avulsion fracture, with surgery performed within 3 weeks of injury ③ Radiographically confirmed Meyers-McKeever classification Type II or III fracture ④ Absence of absolute contraindications to surgical intervention ⑤ Provision of voluntary, written informed consent prior to enrollment
Pathological fractures or complex ipsilateral injuries, including concomitant fractures at other anatomical sites.
Prior ipsilateral knee joint surgery. ③. Significant vascular or neurological compromise.
Acute meniscal tears, acute anterior cruciate ligament (ACL) ruptures, or acute injuries to the medial or lateral collateral ligaments.
Compromised local soft tissue integrity, including open fractures. ⑥. Withdrawal from the study or loss to follow-up despite having provided written informed consent.