Toprak Ugur, Turkoglu Sefa
Radiology Department, Faculty of Medicine, Eskisehir Osmangazi University, Meselik Kampusu, 26040, Odunpazari, Eskisehir, Turkey.
Denizli State Hospital, Sirakapilar Mh, Sht Albay Karaoglanoglu Cd, 20100, Denizli, Turkey.
Surg Radiol Anat. 2018 Sep;40(9):989-994. doi: 10.1007/s00276-018-2028-y. Epub 2018 Apr 19.
To investigate the ulnar groove (UG), extensor carpi ulnaris (ECU) tendon, and ulnar styloid process (USP) parameters in asymptomatic individuals without ulnar-sided wrist abnormalities, to determine whether these values can be anthropometric markers of age and gender and identify their correlations for use in clinical decision-making.
The MRI T1W axial, T2W sagittal, coronal PW and DESS sequences were evaluated in 100 cases (62 women). The UG width, depth and groove opening angle (GOA), ECU tendon width and thickness, and USP base width and length were measured.
For gender, the cut-off, sensitivity, specificity and accuracy values were 8.58 mm, 67, 68 and 66%, respectively, for UG width; 5.3 mm, 53, 68 and 62%, respectively, for ECU width; and 6.4 mm, 55, 74, and 67%, respectively, for USP length. There was no difference concerning age. The tendon width was 63% of the UG width and depth was approximately 51% out of the UG. UG depth was correlated with GOA and tendon thickness (p < 0.001 and 0.03, respectively); UG width with GOA, tendon thickness, and USP base width and length (p = 0.005, 0.01, 0.016, and 0.02, respectively); tendon width-thickness with USP base width and length (p = 0.05); and US base width with US length (p < 0.001).
The gender differences in distal ulnar measurements can be beneficial for surgery and forensic science. UG is wider than ECU tendon, and this is the cause of normal subluxation. Therefore, rather than deepening UG, surgeons should focus on tendon sheath abnormalities as a physiological solution.
研究无尺侧腕部异常的无症状个体的尺骨沟（UG）、尺侧腕伸肌（ECU）肌腱和尺骨茎突（USP）参数，以确定这些数值是否可作为年龄和性别的人体测量标志物，并确定它们之间的相关性，以供临床决策参考。
对100例患者（62例女性）的MRI T1W轴位、T2W矢状位、冠状位PW和DESS序列进行评估。测量UG的宽度、深度和沟开口角度（GOA）、ECU肌腱的宽度和厚度以及USP基部的宽度和长度。
对于性别，UG宽度的截断值、灵敏度、特异度和准确度分别为8.58毫米、67%、68%和66%；ECU宽度分别为5.3毫米、53%、68%和62%；USP长度分别为6.4毫米、55%、74%和67%。年龄方面无差异。肌腱宽度为UG宽度的63%，深度约为UG深度的51%。UG深度与GOA和肌腱厚度相关（分别为p < 0.001和0.03）；UG宽度与GOA、肌腱厚度以及USP基部宽度和长度相关（分别为p = 0.005、0.01、0.016和0.02）；肌腱宽度-厚度与USP基部宽度和长度相关（p = 0.05）；USP基部宽度与USP长度相关（p < 0.001）。
尺骨远端测量的性别差异对手术和法医学可能有益。UG比ECU肌腱宽，这是正常半脱位的原因。因此，外科医生不应专注于加深UG，而应将重点放在腱鞘异常上，将其作为一种生理性解决方案。
