The Effect of Preoperative X/Y Ratio on Clinical Outcomes following Percutaneous Zadek Osteotomy for Insertional Achilles Tendinopathy. - Hall Kiriluk S; Johnson AH; Kaplan JRM; Vulcano E; Lewis T; Lam P; Schipper O; Jackson JB 3rd; Gonzalez TA (Foot & ankle international, 2025)