[Objective]To explore the strategy and outcome of 3D printing assistance and Frosch approach for open reduction and in-ternal fixation(ORIF)of posterolateral tibial plateau fractures.[Methods]A retrospective study was performed on 43 patients who received ORIF for posterolateral tibial plateau fractures in our hospital from January 2021 to February 2022.According to the preoperative doctor-patient communication,21 patients were treated with ORIF of 3D printing assistance and Frosch approach(Frosch group),while the re-mained 22 patients received ORIF via the anterolateral combined posterolateral Carlson approach(AP groups).The documents regarding to perioperative period,follow-up and images were compared between the two groups.[Results]All patients in both groups had corresponding surgical procedures performed successfully,without significant differences in terms of operation time,total incision length,intraoperative blood loss,intraoperative fluoroscopy times,hospital stay between the two groups(P＞0.05).However,the Frosch group resumed walking sig-nificantly earlier than the AP group[(8.4±0.3)days vs(14.5±0.3)days,P＜0.001].Compared with those 3 months after surgery,the VAS score for knee pain,HSS score and knee extension-flexion ROM were significantly improved in both groups at the last follow-up(P＜0.05).The Frosch group proved significantly superior to the AP group in terms of VAS[(2.2±1.1)vs(3.9±1.7),P=0.039]3 months after surgery,[(0.9±0.7)vs(1.8±1.4),P＜0.001]at the last follow-up;HSS score[(62.5±6.2)vs(58.1±6.3),P=0.026]3 months postoperatively,[(88.8±7.5)vs(81.6±9.2),P=0.007]at the latest follow-up;the knee ROM[(91.7±3.2)° vs(87.6±3.8)°,P＜0.001]3 months postoperatively,[(120.6± 4.3)° vs(116.9±3.5)°,P=0.003]at the final interview.[Conclusion]The 3D printing assistance combined with Frosch approach can explore the posterolateral tibial plateau fracture directly to facilitate effective reduction of the articular surface and placement of internal fixation im-plants,reduce operative complications,regain ambulation early,and achieve better functional recovery.
tibial plateau fracture3D printing assistanceFrosch approachopen reduction and internal fixation
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