Rapid Outside-In Capsulotomy in Hip Arthroscopy: A Safe and Feasible Procedure for Femoroacetabular Impingement.

Leng, Pengyuan; Zhu, Yuhang; Hu, Anxin; Liang, Weijia; Cai, Chunyuan; Du, Aili; Liu, Min · Arthrosc Tech · 2025

case_series · Level IV

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Abstract

The traditional inside-out capsulotomy, commonly used in hip arthroscopy to achieve better visibility and space, involves cutting the iliofemoral ligament, leading to potential hip instability. Previous outside-in methods were complex because of the need for anatomic localization. We describe a minimally invasive outside-in technique using a spinal needle for a quick longitudinal capsulotomy, which is straightforward and easy to learn.

Anatomy