Fukuba Mikao, Kawada Koki, Okazaki Yuki, Katayama Yoshimi, Hamada Masanori, Ozaki Toshifumi, Furumatsu Takayuki
Department of Physical Medicine and Rehabilitation, Okayama University Hospital, Okayama, Japan.
Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan.
Eur J Orthop Surg Traumatol. 2024 Dec 12;35(1):40. doi: 10.1007/s00590-024-04158-4.
In this study, we aimed to evaluate the changes in and the relationship between lower limb muscle strength and physical function before and after medial meniscus posterior root (MMPR) repair.
Thirty-three patients who underwent MMPR repair were evaluated. Pain was evaluated with the numerical rating scale (NRS), and knee flexor/extensor muscle strength was assessed using a handheld dynamometer. Physical function was evaluated using a timed up and go (TUG) test. The NRS, knee flexor/extensor muscle strength, and TUG were compared preoperatively and 1 year postoperatively using the Wilcoxon signed-rank test. The correlation of patient characteristics, NRS score, knee flexor/extensor muscle strength, and preoperative TUG with the postoperative TUG was analyzed using Spearman's correlation coefficient.
NRS (3.5 ± 2.1 to 0.1 ± 0.5 points), knee flexor strength (111.9 ± 50.2 to 146.7 ± 51.5 Nm), knee extensor strength (181.9 ± 92.8 to 256.9 ± 107.1 Nm), and TUG (12.3 ± 5.7 to 9.2 ± 2.2 s) all improved significantly from preoperatively to 1 year postoperatively (p < 0.001). The postoperative TUG was negatively correlated with the preoperative TUG (r = 0.578, p < 0.001), preoperative knee flexor muscle strength (r = - 0.355, p = 0.042), preoperative knee extensor muscle strength (r = - 0.437, p = 0.010), and postoperative knee extensor muscle strength (r = - 0.478, p = 0.004).
In patients undergoing MMPR repair, surgery and rehabilitation significantly improve lower limb muscle strength and physical function. There was a significant correlation between lower limb muscle strength and TUG, and further strengthening of the lower limb muscles from the preoperative level is desirable to improve patients' physical function further.
IV.
在本研究中，我们旨在评估内侧半月板后根（MMPR）修复术前和术后下肢肌肉力量及身体功能的变化及其之间的关系。
对33例行MMPR修复术的患者进行评估。采用数字评定量表（NRS）评估疼痛程度，使用手持测力计评估膝关节屈伸肌力量。采用计时起立行走（TUG）测试评估身体功能。术前和术后1年，使用Wilcoxon符号秩检验比较NRS、膝关节屈伸肌力量和TUG。采用Spearman相关系数分析患者特征、NRS评分、膝关节屈伸肌力量及术前TUG与术后TUG的相关性。
NRS（从3.5±2.1分降至0.1±0.5分）、膝关节屈肌力量（从111.9±50.2 Nm增至146.7±51.5 Nm）、膝关节伸肌力量（从181.9±92.8 Nm增至256.9±107.1 Nm）和TUG（从12.3±5.7秒降至9.2±2.2秒）在术前至术后1年均有显著改善（p<0.001）。术后TUG与术前TUG（r=0.578，p<0.001）、术前膝关节屈肌力量（r=-0.355，p=0.042）、术前膝关节伸肌力量（r=-0.437，p=0.010）及术后膝关节伸肌力量（r=-0.478，p=0.004）呈负相关。
在接受MMPR修复术的患者中，手术和康复显著改善了下肢肌肉力量和身体功能。下肢肌肉力量与TUG之间存在显著相关性，如果想进一步改善患者的身体功能，从术前水平进一步加强下肢肌肉是有必要的。
IV级。
