PURPOSE Chronic ankle instability with a long symptom duration is often accompanied by medial compartment ankle osteoarthritis (OA). However, the outcomes of individuals after ligament stabilization have rarely been reported. The radiographic and clinical outcomes after ligament stabilization in individuals with chronic ankle instability and medial compartment OA were investigated. METHODS The study investigated 27 ankles with chronic ankle instability and medial compartment OA that underwent lateral ankle ligament reconstruction from 2007 to 2015 with a follow-up period of at least 1 year. Ligament stabilization was performed via either the modified Broström procedure (MBP) or lateral ankle reconstruction (LAR) using semitendinosus tendon allografts. RESULTS The median instability duration was 60 (range 12-480) months, and the median follow-up period was 39 (range 12-108) months. The preoperative Takakura ankle OA stage was predominantly stage I (20 patients (74.1%)), followed by stage II (five patients (18.5%)). Ankle MRI (20 ankles) revealed medial cartilage denudation in three cases (15%), cartilage thinning in nine cases (45%), osteophyte formation in ten cases (50%), and loose body formation in six cases (30%). According to the arthroscopic results, the modified Outerbridge grade was two in nine cases and four in ten cases, so these grades were the most common (37.5% and 41.7%, respectively). The MBP was performed in 14 patients, and LAR was performed in 13 patients (52% and 48%, respectively); the bone marrow stimulation procedure was performed in 15 patients (55%). The visual analogue scale score decreased from 6.0 (SD 1.6) preoperatively to 1.8 (SD 1.6) postoperatively (p = 0.000). The American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score improved from 61.9 (SD 14.2) to 89.7 (SD 6.2), and the Karlsson-Peterson score improved from 54.7 (SD 13.9) to 88.3 (SD 9.0) (p = 0.000). There were no serious complications, and all patients were satisfied. CONCLUSIONS Ligament stabilization with arthroscopic procedures for individuals with chronic ankle instability and medial ankle OA yielded significant functional outcomes with high patient satisfaction, even without radiographic improvement. LEVEL OF EVIDENCE IV.

中文翻译：

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韧带稳定可改善慢性踝关节不稳和内侧踝骨关节炎的患者的临床和放射学结果。

目的慢性踝关节不稳，症状持续时间长，通常伴有内侧室踝骨关节炎（OA）。但是，很少有关于韧带稳定后个体的预后的报道。研究了慢性踝关节不稳和内侧房室OA患者韧带稳定后的影像学和临床结局。方法该研究调查了27例慢性踝关节不稳和内侧室OA的踝关节，这些踝关节于2007年至2015年经历了踝关节外侧韧带的重建，随访期至少为1年。通过改良的Broström手术（MBP）或使用半腱肌腱同种异体外侧踝重建（LAR）进行韧带稳定。结果中位不稳定性持续时间为60（12-480）个月，平均随访时间为39（12-108）个月。术前高仓足踝OA分期主要为I期（20例（74.1％）），其次是II期（5例（18.5％））。踝部MRI（20条脚踝）显示3例（15％）内侧软骨剥脱，9例（45％）软骨变薄，10例（50％）骨赘形成和6例（30％）松动体形成。根据关节镜检查结果，改良的Outerbridge等级为九分之二和十分之四，因此这些等级最为常见（分别为37.5％和41.7％）。14例患者进行了MBP，13例患者进行了LAR（分别为52％和48％）；15位患者（55％）进行了骨髓刺激手术。视觉模拟量表评分从术前的6.0（SD 1.6）降低至1.8（SD 1。6）术后（p = 0.000）。美国骨科足踝协会（AOFAS）的踝后足得分从61.9（SD 14.2）提高到89.7（SD 6.2），而Karlsson-Peterson得分从54.7（SD 13.9）提高到88.3（SD 9.0）（p = 0.000）。没有严重的并发症，所有患者都满意。结论对于慢性踝关节不稳和内侧踝OA的患者，通过关节镜手术对韧带进行稳定治疗可产生显着的功能性结果，即使没有影像学上的改善，患者满意度也很高。证据级别IV。没有严重的并发症，所有患者都满意。结论对于慢性踝关节不稳和内侧踝OA的患者，通过关节镜手术对韧带进行稳定治疗可产生显着的功能性结果，即使没有影像学上的改善，患者满意度也很高。证据级别IV。没有严重的并发症，所有患者都满意。结论对于慢性踝关节不稳和内侧踝OA的患者，通过关节镜手术对韧带进行稳定治疗可产生显着的功能性结果，即使没有影像学上的改善，患者满意度也很高。证据级别IV。