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  • Arch Orthop Trauma Surg · Jun 2021

    Comparative Study

    Arthroscopic ankle lateral ligament repair alone versus arthroscopic ankle lateral ligament repair with reinforcement by inferior extensor retinaculum.

    • Yuji Samejima, Ryota Inokuchi, Kosui Iwashita, Hiroyasu Ikegami, Yoshiro Musha, Yasuyuki Jujo, and Masato Takao.
    • Department of Orthopaedic Surgery (Ohashi), School of Medicine, Toho University, 2-22-36 Ohashi, Meguro-ku, Tokyo, 153-8515, Japan.
    • Arch Orthop Trauma Surg. 2021 Jun 1; 141 (6): 987-995.

    PurposeThis study aimed to compare the clinical outcomes and postoperative activities of arthroscopic ankle lateral ligament (ALL) repair alone with arthroscopic ALL repair and reinforcement by the inferior extensor retinaculum (IER) for chronic ankle instability (CAI).Materials And MethodsAll patients who underwent arthroscopic repair for CAI between 2017 and 2019 were evaluated. The Japanese Society for Surgery of the Foot (JSSF) scale and self-administered foot evaluation questionnaire (SAFE-Q), and duration between the surgery and walking without any support, jogging, and complete return to sports were evaluated and compared. The exclusion criteria were (1) follow-up period of < 1 year after surgery, (2) the presence of associated ankle lesions requiring treatment during the same operative procedure, including patients with subfibular ossicle bigger than 5 mm on radiographs, chondral or osteochondral defect, bony impingement, deltoid ligament tear, fibular tendon pathology, or posterior ankle impingement, and (3) patients who underwent revision surgery.ResultsWe identified 126 patients who underwent surgery for CAI and subsequently excluded 36 patients on account of a short follow-up period (< 1 year), additional surgery, and previous surgery. The remaining 90 eligible patients included arthroscopic ALL repair alone (group A, n = 44) and arthroscopic ALL repair with reinforcement by the inferior extensor retinaculum (group G, n = 46) groups. There was no significant difference in the postoperative activities nor in the preoperative or postoperative JSSF scale and SAFE-Q between the two groups. However, significant differences were seen in the mean surgical time (15.5 ± 8.1 vs 20.1 ± 7.6, P = 0.013).ConclusionThis study showed no difference in clinical outcomes between the two groups. However, arthroscopic ALL repair with reinforcement by IER resulted in a longer surgical time than arthroscopic ALL repair alone.Level Of EvidenceRetrospective comparative study, level III.

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