Nguyen KH, Shaw C, Link TM, et al. - In this study, the periportal capsulotomy technique was used to explore the relationship between changes in hip capsule morphology with improvements in patient-reported outcome scores after arthroscopic surgery for femoroacetabular impingement syndrome. In all 28 patients (12 female), postoperative imaging showed that labral repairs and capsulotomies had healed within one year of surgery. After arthroscopic femoroacetabular impingement syndrome treatment, periportal capsulotomy without closure demonstrates capsule healing by 1 year. After surgery, changes in hip capsule morphology including reduced anterior-posterior capsule thickness ratio may be associated with improvements in patient pain, function, and ability to return to sports.