## 3 Results
There were no correlations between clinical outcomes and the ITB strips' width, height, echogenicity, or location. \begin{table}
\begin{tabular}{c c} \hline
**General** \\ \hline Sex, n males (\%) & 28 (87.5) \\ \hline Age, years (mean \(\pm\) SD) & 35.7 \(\pm\) 12.1 \\ \hline Limb side, right (\%) & 19 (59.4) \\ \hline Primary ACLR (\%) & 27 (84.4) \\ \hline Revision ACLR (\%) & 5 (15.6) \\ \hline Postoperative evaluation, days (mean \(\pm\) SD) & 234.5 \(\pm\) 136.3 \\ \hline Sonographic features of ITB strips \\ \hline Visibility (\%) & 31 (96.9) \\ \hline Width, mm (mean \(\pm\) SD) & 5.0 \(\pm\) 1.6 \\ \hline Height, mm (mean \(\pm\) SD) & 4.6 \(\pm\) 1.2 \\ \hline Hyperechogenicity (\%) & 27 (87.1) \\ \hline Effusion (\%) & 5 (16.1) \\ \hline Power Doppler signal (\%) & 0 (0) \\ \hline Location at the level of the femur (\%) & 18 (58.1) \\ \hline Location at the level of the tibia (\%) & 2 (6.5) \\ \hline Location between the femur and the tibia (\%) & 11 (35.5) \\ \hline \end{tabular}
\end{table} 
Table 1: Patient demographics and sonographic features. \begin{table}
\begin{tabular}{c c c c c c} \hline  & **Before Surgery** & \multicolumn{3}{c}{**After Surgery**} \\ \hline  & **Mean** & **Standard Deviation** & **Mean** & **Standard Deviation** & \(p\)**-Value** \\ \hline
**KOOS-pain** & 59.88 & 19.26 & 80.46 & 15.52 & \textless{}0.0001 \\ \hline
**KOOS-symptoms** & 60.59 & 23.78 & 82.38 & 15.72 & \textless{}0.0001 \\ \hline
**KOOS-ADL** & 67.39 & 22.74 & 90.36 & 10.81 & \textless{}0.0001 \\ \hline
**KOOS-sport** & 36.95 & 27.35 & 70.47 & 24.96 & \textless{}0.0001 \\ \hline
**KOOS-quality** & 35.09 & 22.09 & 61.57 & 18.23 & \textless{}0.0001 \\ \hline
**IKDC** & 49.93 & 19.59 & 72.18 & 15.32 & \textless{}0.0001 \\ \hline
**Lysholm** & 49.47 & 20.78 & 77.31 & 18.34 & \textless{}0.0001 \\ \hline
**WOMAC** & 30.19 & 20.08 & 12.63 & 12.08 & 0.0002 \\ \hline \end{tabular}
\end{table} 
Table 2: Preoperative and postoperative clinical outcomes comparison. \begin{table}
\begin{tabular}{c c c} \hline \hline \multicolumn{3}{c}{**Ultrasound Feature**} \\ \hline  & **Echogenicity** & **Effusion** \\ \hline
**KOOS-pain** & 0.352 & 0.592 \\ \hline
**KOOS-symptoms** & 0.922 & 0.012 * \\ \hline
**KOOS-ADL** & 0.723 & 0.536 \\ \hline
**KOOS-sport** & 0.443 & 0.533 \\ \hline
**KOOS-quality** & 0.963 & 0.453 \\ \hline
**IKDC** & 0.788 & 0.139 \\ \hline
**Lysholm** & 0.853 & 0.060 \\ \hline
**WOMAC** & 0.723 & 0.765 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Significance levels (\(p\)-values) of correlations between ultrasound features (echogenicity and effusion) and clinical scores using the Mann–Whitney test. *—statistical significance. Figure 3: The negative correlation between postoperative KOOS-symptoms scores and effusion around ITB strips. \begin{table}
\begin{tabular}{c c c} \hline \hline  & **Ultrasound Feature** & \\ \hline  & **Width** & **Height** \\ \hline
**KOOS-pain** & 0.269 & 0.353 \\ \hline
**KOOS-symptoms** & 0.847 & 0.751 \\ \hline
**KOOS-ADL** & 0.396 & 0.751 \\ \hline
**KOOS-sport** & 0.549 & 0.123 \\ \hline
**KOOS-quality** & 0.888 & 0.895 \\ \hline
**IKDC** & 0.969 & 0.701 \\ \hline
**Lysholm** & 0.637 & 0.888 \\ \hline
**WOMAC** & 0.164 & 0.706 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Significance levels (\(p\)-values) of correlations between ultrasound features (width and height) and clinical scores.