[Objective]To compare the clinical efficacy of screw and washer versus double-row anchor suture bridge for open reduc-tion and internal fixation(ORIF)of posterior cruciate ligament tibial avulsion fracture.[Methods]A retrospective study was conducted on 72 patients who received ORIF for acute posterior cruciate ligament tibial avulsion fractures in our hospital from January 2016 to December 2021.According to the fracture conditions,43 patients had fracture fixed by screw and washer(the screw group),while the remaining 29 pa-tients were fixed by double-row anchor suture bridge(the suture bridge group).The perioperative conditions,follow-up and imaging docu-ments were compared between the two groups.[Results]All patients in both groups were operated on successfully with no serious complica-tions,such as nerve and vascular injury.The screw group was significantly less than that of suture bridge group regarding operation time[(53.8±10.1)min vs(65.2±11.1)min,P＜0.05],although there were no statistically significant differences in incision length,intraoperative fluoroscopy times,postoperative drainage volume,ambulation time,incision healing grade,and hospital stay between the two groups(P＞0.05).The mean follow-up time was(12.6±2.9)months,and there was no significant difference between the two groups in the time to return to full weight-bearing activities(P＞0.05).The VAS,Lysholm and IKDC scores,as well as knee ROM and posterior drawer tests were signifi-cantly improved in both groups over time after surgery(P＜0.05),which were not statistically significant between the two groups at any time points accordingly(P＞0.05).Radiographically,the fracture with fragment diameter＞10 mm all got proper reduction,but in those with the fragment diameter ≤10 mm,the suture bridge group was significantly better than the screw group in term of reduction quality[excellent/good/poor,(21/0/0)vs(13/2/2),P＜0.05].However,there were no statistically significant differences in fracture healing time and K-L grad-ing accordingly between the two groups(P＞0.05).[Conclusion]Both screw-washer and double-row anchor suture bridge fixation for poste-rior cruciate ligament tibial avulsion fracture do achieve better clinical outcomes.However,for fracture with fragment diameter ≤10 mm or comminuted fracture,the double-row anchor suture bridge fixation might be the better selection.
posterior cruciate ligamentavulsion fracturecancellar bone screwdouble-row anchor suture bridge
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