Matsuda D, Kivlan BR, Nho SJ, et al. - This study was undertaken to explore whether tenotomy for iliopsoas pathology is infrequently performed and correlated with poorer outcomes in hips undergoing arthroscopy for femoroacetabular impingement. Researchers conducted a cohort study from a hip arthroscopy study group using a prospectively-collected multicenter database. Between January 2016 and March 2017, patients that had undertaken isolated hip arthroscopy for FAI were assigned to the Iliopsoas group (defined as a pre-operative diagnosis of coxa saltans internus, intra-operative anteroinferior labral bruising or tear, and/or preoperative positive psoas injection) or control group. They compared the prevalence of iliopsoas pathology, radiographic and intraoperative findings, and rendered procedures between groups were compared. They compared mean 2-year(minimum 1.8 years) outcomes of the Iliopsoas group with and without rendered tenotomy and control group. There were 1,393 individuals of which 92 (7%) comprised the iliopsoas study group with 1301 subjects control subjects. The data demonstrated that for FAI, tenotomy in patients with iliopsoas pathology undergoing arthroscopic surgery is infrequently performed and is associated with poorer outcomes. The outcomes suggested that co-afflicted patients treated without tenotomy have similar successful outcomes to patients with primary FAI. For iliopsoas pathology, indiscriminate tenotomy in this setting should be cautiously considered.