Department of Sports Medicine, Fujian Province Second People's Hospital, No.282, Wusi Road, Gu Lou District, Fuzhou, 350001, Fujian, China.
Department of Sports Medicine, The Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, 350001, Fujian, China.
BMC Musculoskelet Disord. 2024 Jul 19;25(1):562. doi: 10.1186/s12891-024-07645-1.
The aim of this retrospective study was to evaluate the effectiveness and accuracy of the AIKNEE system in preoperative planning and intraoperative alignment for total knee arthroplasty (TKA).
A total of 64 patients were planned preoperatively by the AIKNEE system, including the measurement of mechanical femorotibial angle (mFTA), lateral distal femoral angle (LDFA), and medial proximal tibial angle (MPTA) using three-dimensional reconstructed images. Intraoperatively, the actual prosthesis size and alignment were compared to the planned parameters. Postoperative outcomes, including pain levels, range of motion (ROM), and Knee Scoring System (KSS) scores, were assessed after surgery. Statistical analyses were performed to evaluate the correlation between alignment deviations and postoperative function.
The AIKNEE system accurately predicted the prosthesis size in thirty-one of femoral cases (48%) and forty-seven of tibial cases (73%). Deviations of mFTA, LDFA, and MPTA from the target value were within 3° in 88%, 92%, and 95% of cases, respectively. A significant improvement was observed in postoperative pain, ROM, and KSS scores (p < 0.001). Correlation analysis revealed that greater deviations in mFTA and LDFA were associated with increased pain (p = 0.004, 0.047) and lower KSS scores (p = 0.027).
The AIKNEE system demonstrated promising results in predicting prosthesis size and achieved alignment within the desired range in a majority of cases. Postoperative outcomes, including pain levels and functional improvement, were favorable.
本回顾性研究旨在评估 AIKNEE 系统在全膝关节置换术（TKA）术前规划和术中对线中的有效性和准确性。
共有 64 例患者通过 AIKNEE 系统进行术前规划，包括使用三维重建图像测量机械股骨胫角（mFTA）、外侧远端股骨角（LDFA）和内侧近端胫骨角（MPTA）。术中比较实际假体大小和对线与计划参数。术后评估术后结果，包括疼痛水平、关节活动度（ROM）和膝关节评分系统（KSS）评分。进行统计分析以评估对线偏差与术后功能之间的相关性。
AIKNEE 系统在 31 例股骨病例（48%）和 47 例胫骨病例（73%）中准确预测了假体尺寸。mFTA、LDFA 和 MPTA 与目标值的偏差在 88%、92%和 95%的病例中均在 3°以内。术后疼痛、ROM 和 KSS 评分均显著改善（p<0.001）。相关性分析显示，mFTA 和 LDFA 的较大偏差与疼痛增加（p=0.004，0.047）和 KSS 评分降低（p=0.027）相关。
AIKNEE 系统在预测假体尺寸方面表现出良好的效果，并且在大多数情况下实现了期望范围内的对线。术后结果包括疼痛水平和功能改善均良好。
