Tat Jimmy, Wilson Katherine E, Keir Peter J
Occupational Biomechanics Laboratory, Department of Kinesiology, McMaster University, Hamilton, ON, Canada, L8S 4K1.
Occupational Biomechanics Laboratory, Department of Kinesiology, McMaster University, Hamilton, ON, Canada, L8S 4K1.
Clin Biomech (Bristol). 2015 May;30(4):360-5. doi: 10.1016/j.clinbiomech.2015.02.015. Epub 2015 Mar 2.
Fibrosis and thickening of the subysnovial connective tissue are the most common pathological findings in carpal tunnel syndrome. The relationship between subsynovial connective tissue characteristics and self-reported carpal tunnel syndrome symptoms was assessed.
Symptoms were characterized using the Boston Carpal Tunnel Questionnaire and Katz hand diagram in twenty-two participants (11 with symptoms, 11 with no symptoms). Using ultrasound, the thickness of the subsynovial connective tissue was measured using a thickness ratio (subsynovial thickness/tendon thickness) and gliding function was assessed using a shear strain index ((Displacement(tendon)-Displacement(subsynovial))/Displacement(tendon)x 100). For gliding function, participants performed 10 repeated flexion-extension cycles of the middle finger at a rate of one cycle per second.
Participants with symptoms had a 38.5% greater thickness ratio and 39.2% greater shear strain index compared to participants without symptoms (p<0.05).
Ultrasound detected differences the SSCT in symptomatic group that was characterized by low self-reported symptom severity scores. This study found ultrasound useful for measuring structural and functional changes in the SSCT that could provide insight in the early pathophysiology associated with carpal tunnel syndrome symptoms.
滑膜下结缔组织的纤维化和增厚是腕管综合征最常见的病理表现。评估了滑膜下结缔组织特征与自我报告的腕管综合征症状之间的关系。
使用波士顿腕管问卷和卡茨手部图对22名参与者（11名有症状，11名无症状）的症状进行特征描述。使用超声，通过厚度比（滑膜下厚度/肌腱厚度）测量滑膜下结缔组织的厚度，并使用剪切应变指数（（肌腱位移-滑膜下位移）/肌腱位移×100）评估滑动功能。对于滑动功能，参与者以每秒一个周期的速度对中指进行10次重复的屈伸循环。
有症状的参与者与无症状的参与者相比，厚度比高38.5%，剪切应变指数高39.2%（p<0.05）。
超声检测到有症状组的滑膜下结缔组织存在差异，该组自我报告的症状严重程度评分较低。本研究发现超声有助于测量滑膜下结缔组织的结构和功能变化，这可为与腕管综合征症状相关的早期病理生理学提供见解。
