[Arthroscopic treatment of tibial avulsion fracture of posterior cruciate ligament with a knot-free anchor and Endobuton titanium plate].

OBJECTIVE

To investigate the clinical effect of arthroscopic fixation of tibial avulsion fracture of posterior cruciate ligament with a knot-free anchor and Endobuton titanium plate.

METHODS

From October 2019 to October 2020, 12 patients with tibial avulsion fracture of posterior cruciate ligament were treated with the arthroscopic knot-free anchor and Endobuton titanium plate, including 9 males and 3 females. The age ranged from 23 to 58 years old. The time from injury to operation ranged from 2 to 9 days. There were 2 cases of Meyers typeⅡand 10 cases of Meyers type Ⅲ. There were 2 cases of meniscus injury and 1 case of partial injury of medial collateral ligament. The fracture healing and knee range of motion were evaluated after operation, and the clinicalefficacy was evaluated by Lysholm function score.

RESULTS

All patients were followed up for 12 months. All patients healed within 6 months, and there were no complications such as incision infection, lower extremity deep venous thrombosis and internal fixation falling off. The knee flexion range of motion recovered from 50°-90° before operation to 115°-130° 6 months after operation, and no patient had straightening disorder. Lysholm functional score recovered from preoperative 29-54 scores to 86-100 scores 12 months after operation.

CONCLUSION

Arthroscopic reduction and fixation of tibial avulsion fracture of posterior cruciate ligament with the knot-free anchor and Endobuton titanium plate has less complications, high fracture healing rate, good extension and flexion angle and early function recovery of knee joint.