Purpose

The purpose of this study was to reveal the influence of the variance in width between the tibial spine and the femoral intercondylar notch on the occurrence of ACL injury.

Methods

Thirty-nine subjects undergoing anatomical ACL reconstruction (30 female, 9 male; average age 29 ± 15.2) and 37 subjects with intact ACL (21 female, 16 male; average age 29 ± 12.5) were included in this study. In the anterior–posterior knee radiograph, tibial spine height, and the length between the top of the medial and lateral tibial spine (tibial spine width) were measured. In axial knee MRI exhibiting the longest femoral epicondylar length, intercondylar notch outlet length was measured and notch width index was calculated. Tibial spine width/notch outlet length, and tibial spine width/notch width index were compared between the ACL tear and intact groups.

Results

Tibial spine width/notch outlet length of the ACL tear and intact groups was 0.6 ± 0.1 and 0.7 ± 0.1, respectively. Tibial spine width/notch width index of the ACL tear and intact groups was 0.4 ± 0.1, and 0.6 ± 0.1, respectively. Both parameters were significantly larger in the ACL intact group.

Conclusion

Both tibial spine width/notch outlet length and tibial spine width/notch width index were significantly smaller in the ACL tear group when compared with the ACL intact group. The occurrence of ACL injury influenced by the variance in width between the tibial spine and the femoral intercondylar notch.

Level of evidence

III.

中文翻译：

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ACL损伤的发生受胫骨棘与股骨inter间切口宽度变化的影响

目的

这项研究的目的是揭示胫骨和股骨inter间凹口之间的宽度变化对ACL损伤发生的影响。

方法

这项研究包括了三十九名接受解剖ACL重建的受试者（30名女性，9名男性；平均年龄29±15.2）和37名完整ACL的受试者（21名女性，16名男性；平均年龄29±12.5）。在前后膝关节X光片中，测量胫骨的高度以及胫骨内侧和外侧的顶部之间的长度（胫骨宽度）。在表现出最长的股骨epi上长度的轴向膝部MRI中，测量con间切口出口长度，并计算切口宽度指数。比较ACL撕裂组和完整组的胫骨宽度/切口出口长度和胫骨宽度/切口宽度指数。

结果

ACL撕裂和完整组的胫骨宽度/切口出口长度分别为0.6±0.1和0.7±0.1。ACL撕裂组和完整组的胫骨宽度/切口宽度指数分别为0.4±0.1和0.6±0.1。在ACL完整组中，这两个参数均显着较大。

结论

与ACL完整组相比，ACL撕裂组的胫骨宽/切口出口长度和胫骨宽/切口宽度指数均显着较小。ACL损伤的发生受胫骨棘与股骨con间凹口宽度的变化影响。

证据水平

三，