Görmeli Cemile Ayşe, Görmeli Gökay, Öztürk Burak Yağmur, Özdemir Zeynep, Kahraman Ayşegül Sağır, Yıldırım Okan, Gözükarab Harika
Acta Orthop Belg. 2015 Jun;81(2):240-4.
To evaluate the relationship of the intercondylar notch width with unilateral and bilateral ACL injury by using MR images.
The intercondylar notch width index was measured on the MR images of 18 patients with a bilateral ACL injury, 38 patients with a unilateral ACL injury and 53 healthy subjects with a normal ACL and the results of all groups were compared with each other.
The mean NWI values were 0,227 (±0.008) in bilateral injured; 0,245 (±0.009) in unilateral injured and 0,272 (±0.01) in control groups and 0,251(±0.01) in unaffected side of the unilateral group. There were statistically significant differences in intercondylar notch width index (NWI) values between all groups and there was a significant difference between the affected and the unaffected sides in group with unilateral ACL injury. A cutoff value of 0.25 for NWI gave an odds ratio of 26.5 for bilateral and 3.23 for unilateral ACL injuries.
The finding that NWI is significantly narrowed in patients with bilateral and unilateral ACL tears compared with the healthy controls suggest a relationship between a narrow NWI and an increased risk of ACL injury. The patients with a narrow NWI should also be screened contralaterally for assessment of ACL injury risk on the other knee. So, specialized training programmes for the people with narrow NWI can be prepared for preventing ACL injuries.
通过磁共振成像（MR）评估髁间切迹宽度与单侧及双侧前交叉韧带（ACL）损伤之间的关系。
在18例双侧ACL损伤患者、38例单侧ACL损伤患者以及53例ACL正常的健康受试者的MR图像上测量髁间切迹宽度指数，并对所有组的结果进行相互比较。
双侧损伤组的平均NWI值为0.227（±0.008）；单侧损伤组为0.245（±0.009），对照组为0.272（±0.01），单侧组未受影响侧为0.251（±0.01）。所有组之间髁间切迹宽度指数（NWI）值存在统计学显著差异，单侧ACL损伤组的患侧与未受影响侧之间也存在显著差异。NWI的截断值为0.25时，双侧ACL损伤的优势比为26.5，单侧ACL损伤的优势比为3.23。
与健康对照组相比，双侧和单侧ACL撕裂患者的NWI明显变窄，这一发现表明NWI变窄与ACL损伤风险增加之间存在关联。对于NWI较窄的患者，还应进行对侧筛查，以评估对侧膝关节ACL损伤的风险。因此，可以为NWI较窄的人群制定专门的培训计划，以预防ACL损伤。
