Impact of Internal Brace augmentation on the short-term efficacy of all inside endoscopic Brostr?m-Gould repair in the treatment of chronic lateral ankle instability
Objective:To investigate the short-term outcomes of all inside endoscopic Broström-Gould repair alone versus combined with Internal Brace augmentation in the treatment of chronic lateral ankle instability.Methods:A retrospective analysis was conducted on 62 patients with chronic lateral ankle instability caused by lateral ligament injury who underwent surgery between January 2020 and October 2021.Among them,28 patients underwent all inside endoscopic Broström-Gould repair alone(EBG group),while 34 patients underwent arthroscopic Broström-Gould repair combined with Internal Brace augmentation(IBG group).Pain visual analog scale(VAS)scores and American Orthopedic Foot & Ankle Society(AOFAS)ankle-hindfoot scores were recorded for both groups preoperatively and at the final follow-up.The complications and return to preinjury activity levels were also observed.Results:The patients in the EBG group were followed up for 6 to 18 months,with a mean of(13.6±4.3)months,while those in the IBG group were followed up for 6 to 17 months,with a mean of(12.3±4.1)months.At the final follow-up,both the EBG and IBG groups had decreased pain VAS scores[(2.0±0.6)vs.(6.6±1.2),(1.7±0.5)vs.(6.3±1.1)]and increased AOFAS scores[(89.4±8.1)vs.(52.0±9.4),(91.2±5.1)vs.(50.1±7.9)],although these differences were statistically significant(all P＜0.001).Moreover,there were no statistically significant differences between the two groups(P＞0.05).In the EBG and IBG groups,25 and 33 patients,respectively,regained their preinjury activity level.Patients in the IBG group recovered to their preinjury activity level earlier than those in the EBG group[(12.6±2.6)weeks vs.(20.1±4.1)weeks],with the difference statistically significant(P＜0.001).Three patients in the EBG group and one patient in the IBG group still experienced persistent pain and ankle instability symptoms postoperatively.Additionally,three patients in the EBG group and two patients in the IBG group experienced symptoms of superficial peroneal nerve injury postoperatively.Conclusions:All inside endoscopic Broström-Gould repair combined with Internal Brace augmentation shows advantages over all inside endoscopic Broström-Gould repair alone in terms of early postoperative recovery and return to preinjury activity levels in patients with chronic lateral ankle instability.Additionally,these patients exhibit superior postoperative ankle joint function recovery and pain reduction,although these differences were not statistically significant.
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