Comparison of a Novel Modified Vandenbos Technique with the Winograd Technique for Stage III Onychocryptosis: A Retrospective Study

Background/Objectives: For Heifetz stage III onychocryptosis, matricectomy is standard but carries drawbacks. Methods: This study evaluated a modified Vandenbos technique preserving matrix using CO₂ laser ，compared with Winograd procedure. Results: In 204 patients (166 Vandenbos, 38 Winograd), Vandenbos yielded significantly lower median pain (NRS 6.0 vs. 8.5; p<0.001), faster return to daily activities (3.0 vs. 7.0 days; p=0.0005), and higher surgical satisfaction (10.0 vs. 9.0; p=0.005). Cosmetic satisfaction favored Vandenbos (10 vs. 9, p=0.085, NS). Recurrence: 28.9% (V) vs. 18.4% (W), p=0.189. Infection: 0% (V) vs. 13.2% (W). Dressing duration: 16 vs. 14 days, p=0.503. Conclusions: Modified Vandenbos offers lower pain, faster recovery, negligible infection, and good cosmesis, with non-inferior recurrence; it is a viable matricectomy-sparing alternative, yet patient selection is advised.