Abstract #5192

Quantitative assessment of the anterior talofibular ligament after arthroscopic repair using T2* values

Yoshihiro Akatsuka¹, Atsushi Teramoto², Yasutaka Murahashi², Katsunori Takahashi², Rui Imamura¹, and Kota Watanabe³

¹Division of Radiology and Nuclear Medicine, Sapporo Medical University Hospital, Sapporo, Japan, ²Department of Orthopaedic Surgery, Sapporo Medical University, Sapporo, Japan, ³Second Division of Physical Therapy, Sapporo Medical University, Sapporo, Japan

Synopsis

Keywords:

Motivation: Although anterior talofibular ligament (ATFL) repair is commonly performed as part of chronic lateral ankle instability (CLAI) surgical treatment, there are no reports that quantitatively evaluate the repaired ATFL.

Goal(s): Our goal was to investigate longitudinal changes in T2* values within ATFL after primary ATFL repair.

Approach: We compared preoperative and 6 months postoperative T2* values of the ATFL using high-resolution T2* map images.

Results: There was a 118% change in the T2* value at 6 months after ATFL repair, including a 130% change on the fibular side.

Impact: These findings provide basic data to help understand the healing process after ATFL repair surgery and provide quantitative values may help predict recurrence and clinical outcomes.

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