【論文摘要】The Effect of Artificial Intelligence Knee Brace on Knee Function and Stability Following Anterior Cruciate Ligament Reconstruction

【論文摘要】人工智慧護膝於前十字韌帶重建術後膝功能和穩定度之效果

劉櫂緯(Zhao-Wei Liu) ； 楊政峯(Jeng-Feng Yang)

《物理治療》 46卷4期 (2021/12) Pp. 339-339

https://doi.org/10.6215/FJPT.202112.P63

摘要

Background and Purpose: Artificial intelligence (AI) knee brace has been developed to enhance the outcome after anterior cruciate ligament reconstruction (ACLR). We conducted a study to compare the effectiveness of post-operative intervention combined with AI knee brace and conventional physical therapy. Methods: The patients with ACLR were recruited. There were 18 subjects in the experimental group who wore the AI knee brace and practiced app-guided exercise at home. There was 1 subject in the control group who received one session of conventional physical therapy weekly. All subjects returned for assessment before operation (phase 0), 1 month (phase 1), 2 months (phase 2), 3 months (phase 3), 4 months (phase 4), and 6 months (phase 5) after operation. Pain in visual analog scale (VAS), anterior cruciate ligament laxity represented by force/displacement curve slope (FDCS), and the ratio of hamstring/quadriceps strength (HQ ratio) were assessed. Results: The results showed progress for both groups. The pain in VAS reduced substantially from phase 0 (1.82 ± 2.19) to phase 1 (1.29 ± 1.53) and then reduced gradually to phase 4 (0.73 ± 1.42) and phase 5 (0.00 ± 0.00) for the experimental group. A similar result was found from the subject in the control group (4, 3, 0, 2, for phase 0, 1, 4, 5, respectively). Comparing phase 0 and phase 5, the FDCS in the experimental group reduced from 10.25 ± 6.64 mm/ N to 3.15 ± 2.05 mm/N, suggesting more stable knee joint integrity. In contrast, the FDCS in the control increased from 6.20 mm/N to 10.00 mm/N. The HQ ratio of the operated leg increased from 81.88 ± 33.21% to 93.50 ± 40.81% when assessed at 60°/s and increased from 78.50 ± 30.58% to 99.25 ± 41.31% when assessed at 120°/s in the experimental group. A similar trend was found for the control group, HQ ratio increased from 89% to 155% when assessed at 60°/ s and increased from 86% to 138% when assessed at 120°/s. Conclusion: AI knee brace seems a feasible device to improve effectiveness after ACLR. Further data will be collected and discussed.