INTRODUCTION Aberrant knee mechanics during gait 6 months after anterior cruciate ligament reconstruction (ACLR) are associated with markers of knee cartilage degeneration. The purpose of this study was to compare loading during walking gait in quadriceps tendon, bone-patellar tendon-bone (BPTB), and hamstring tendon autograft patients 6 months post-ACLR using loadsol single sensor insoles, and to evaluate associations between loading and patient-reported outcomes. METHODS Seventy-two patients (13 to 40 yr) who underwent unilateral, primary ACLR with BPTB, quadriceps tendon, or hamstring tendon autograft completed treadmill gait assessment, the International Knee Documentation Committee (IKDC) survey, and the ACL-Return to Sport after Injury (ACL-RSI) survey 6 ± 1 months post-ACLR. Ground reaction forces were collected using loadsols. Limb symmetry indices (LSI) for peak impact force (PIF), loading response instantaneous loading rate (ILR), and loading response average loading rate (ALR) were compared between groups using separate analyses of covariance. Survey scores were compared between groups using one-way ANOVAs. The relationships between IKDC, ACL-RSI, and LSI were compared using Pearson's product moment correlation coefficients. RESULTS There were no significant differences between graft sources for LSI in PIF, ILR, ALR, or impulse. Patient-reported knee function was significantly different between graft source groups with the BPTB group reporting the highest IKDC scores; however, there was no significant difference between groups for ACL-RSI score. There were no significant associations between IKDC score, ACL-RSI score, and biomechanical symmetry among any of the graft source groups. CONCLUSIONS Autograft type does not influence PIF, ILR, ALR, or impulse during walking 6 months post-ACLR. Limb symmetry during gait is not strongly associated with patient-reported outcomes regardless of graft source. Loadsols appear to be a suitable tool for use in the clinical rehabilitation setting.

中文翻译：

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前交叉韧带重建后 6 个月用力感应鞋垫评估步态：自体移植物比较。


引言 前交叉韧带重建 （ACLR） 后 6 个月步态期间异常的膝关节力学与膝关节软骨退化的标志物有关。本研究的目的是使用 loadsol 单传感器鞋垫比较 ACLR 后 6 个月股四头肌肌腱、骨-髌腱-骨 （BPTB） 和腘绳肌腱自体移植患者步行步态的负荷，并评估负荷与患者报告结果之间的关联。方法 72 例接受单侧原发性 ACLR 伴 BPTB、股四头肌肌腱或腘绳肌腱自体移植术的患者 （13 至 40 岁） 在 ACLR 后 6 ± 1 个月完成了跑步机步态评估、国际膝关节文献委员会 （IKDC） 调查和 ACL-受伤后重返运动 （ACL-RSI） 调查。使用 loadsols 收集地面反作用力。使用单独的协方差分析，比较组间峰值冲击力 （PIF） 、负载响应瞬时负载率 （ILR） 和负载响应平均负载率 （ALR） 的肢体对称指数 （LSI）。使用单因素方差分析比较各组之间的调查分数。使用 Pearson 的乘积矩相关系数比较 IKDC 、 ACL-RSI 和 LSI 之间的关系。结果 LSI 的移植物来源在 PIF 、 ILR 、 ALR 或冲动方面没有显著差异。患者报告的膝关节功能在移植物来源组之间存在显著差异，其中 BPTB 组报告的 IKDC 评分最高;然而，ACL-RSI 评分在组间无显著差异。在任何移植物来源组中，IKDC 评分、 ACL-RSI 评分和生物力学对称性之间均无显著关联。 结论 自体移植物类型不影响 ACLR 后 6 个月步行时的 PIF 、 ILR 、 ALR 或冲动。无论移植物来源如何，步态期间的肢体对称性与患者报告的结果都没有很强的相关性。Loadsols 似乎是适合在临床康复环境中使用的工具。