Podium Presentation Title: Superficial MCL Augmented Repair vs. Reconstruction: A Multicenter Randomized Controlled Trial

To compare clinical outcomes between randomized groups who underwent MCL augmentation repair versus autograft reconstruction. Patients were prospectively enrolled from 2013 to 2019 3 centers (United States, Norway, Denmark). Grade III superficial (sMCL) injuries confirmed by stress radiography. an anatomic sMCL reconstruction augmented with surgical treatment determined after examination under anesthesia incompetence. Post-operative visits occurred at 6 weeks and months for repeat evaluation radiography final follow-up. Patient reported outcome measures (PROMs) obtained preoperatively postoperatively months, 1 year, The two one-sided t-test (TOST) procedure was used test equivalence side-to-side difference in valgus gapping, Mann-Whitney U-test postoperative PROMs groups. Fifty-four patients centers. average overall patient age 38.0 years (standard deviation (SD = 14.2 years), body mass index 25.0 3.6). Preoperative radiographs demonstrated 3.74 mm 1.1 mm) of increased gapping overall, while it 4.10 1.46 the group 3.42 0.55) (p 0.036). Postoperative 0.21 0.81 0.19 0.67 0.940). At follow-up (minimum 1-year), Lysholm scores significantly higher (median 90, inter-quartile range 83–99) compared 80, IQR 67-92; p=0.031). Final IKDC 85, 68-89) 72, 60-78; p=0.039). Tegner not different 5, 3.5-6) 5.5, 4-7; p=0.123). satisfaction 7.5, 5.75–9.25) 9, 7 - 10; p=0.184). There no cases DVT, infection, or arthrofibrosis any either group. graft ruptures as indicated (≥ 3.2 physical 12 postoperatively. objective a complete one year favored over repair. This controlled trial that anatomic-based tears early knee motion program had low risk attenuation complications.