• Arch Orthop Trauma Surg · Dec 2022

    Arthroscopic modified Broström operation versus open reconstruction with local periosteal flap in chronic ankle instability.

    • Moritz Mederake, Ulf Krister Hofmann, and Ingmar Ipach.
    • Department of Orthopaedic Surgery, University Hospital Tübingen, Hoppe Seyler-Str. 3, 72076, Tübingen, Germany. moritz.mederake@med.uni-tuebingen.de.
    • Arch Orthop Trauma Surg. 2022 Dec 1; 142 (12): 358135883581-3588.

    IntroductionThe modified Broström operation (MBO) has found widespread use in the therapy of lateral chronic ankle instability (CAI). However, alternative surgical techniques like the open reconstruction using a periosteal flap (RPF) are still an important part of the surgical treatment of lateral CAI. Both procedures differ in terms of the reconstruction material used and the surgical procedure. Comparative studies on the surgical therapy of CAI are limited and generally refer to similar surgical procedures. Aim of this study was to compare the arthroscopic MBO and the RPF.Materials And MethodsWe retrospectively analysed 25 patients with lateral CAI after a tear of the anterior talofibular ligament (ATFL). 14 patients received arthroscopic MBO and 11 patients received RPF. We compared the postoperative outcome between both groups with respect to subjective instability, the number of ankle sprains, pain, complications and follow-up operations as well as the American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score.ResultsBoth surgical procedures resulted in a significant improvement in pain, in subjective instability, in the reduction in the frequency of ankle sprains and improvement in the AOFAS ankle-hindfoot score one year postoperatively. Three months postoperatively, the values for pain and instability of the MBO group were significantly better compared to the RPF. One year after the operation, these differences were evened out. Also in terms of complications and follow-up operations, no significant difference was found between the two procedures.ConclusionsBoth surgical procedures give very good results one year postoperatively in terms of pain, instability, function and complication rate. With significantly better results regarding pain and instability three months postoperatively, the MBO allows a faster recovery in patients operated with this technique.© 2021. The Author(s).

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