We aimed to compare clinical and radiologic outcomes in patients with cam-type femoroacetabular impingement (FAI), with and without a partial ligamentum teres (LT) tear, who underwent hip arthroscopy (HA) with ≥10 years of follow-up. Among the patients who underwent HA for a cam-type FAI diagnosis with a labral tear, 28 patients (28 hips) with a partial LT tear and 87 patients (99 hips) with an intact LT were assigned to Groups A and B, respectively. All patients underwent partial labral debridement and femoroplasty. Debridement and thermal shrinkage were performed for LT tears. The grade of chondral damage was measured intraoperatively. Clinical items were assessed preoperatively and at the last follow-up. Patients’ satisfaction with the surgery and changes in postoperative sports ability in those who had previously been active in sports were assessed at the last follow-up. The Tönnis grade was assessed preoperatively and at the last follow-up for radiologic evaluation. Chondral damage to the acetabular and femoral head detected intraoperatively was significantly different between the groups (P = 0.005 and P < 0.001). At the last follow-up, Group A patients experienced more difficulty performing sports activities than Group B patients (P = 0.056), and significantly, more Group A patients had stopped exercising despite their active participation in sports preoperatively (P = 0.002). Regarding the Tönnis grade, significant differences were found only at the final follow-up (P = 0.020). Patients with partial LT tear showed a higher grade of chondral damage, experienced decreased exercise capacity and had significantly worsened Tönnis grades, suggesting hip osteoarthritis progression compared to those with an intact LT.

中文翻译：

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圆韧带的作用和临床意义：凸轮型股骨髋臼撞击髋关节镜手术后的长期结果

我们旨在比较凸轮型股骨髋臼撞击 (FAI) 患者的临床和影像学结果，这些患者有和没有部分圆韧带 (LT) 撕裂，他们接受了髋关节镜检查 (HA) 并进行了≥10 年的随访。在因盂唇撕裂的凸轮型 FAI 诊断而接受 HA 的患者中，28 例（28 髋）部分 LT 撕裂和 87 例（99 髋）完整 LT 分别被分配到 A 组和 B 组。所有患者均进行了部分盂唇清创和股骨成形术。对 LT 撕裂进行清创和热收缩。术中测量软骨损伤的等级。术前和末次随访时对临床项目进行评估。在最后一次随访时评估患者对手术的满意度和以前积极参加运动的患者术后运动能力的变化。Tönnis 分级在术前和最后一次随访时进行放射学评估。术中检测到的髋臼和股骨头软骨损伤在各组之间存在显着差异（P = 0.005 和 P < 0.001）。在最后一次随访中，A 组患者进行体育活动的难度高于 B 组患者（P = 0.056），并且显着的是，尽管 A 组患者术前积极参与体育运动，但更多的 A 组患者停止锻炼（P = 0.002）。关于 Tönnis 等级，仅在最终随访时发现显着差异（P = 0.020）。