顧曉清 董芹 金少華
摘要:目的 ?探討應(yīng)力性骨折診斷的磁共振影像表現(xiàn),分析磁共振成像(MRI)T1WI序列在膝關(guān)節(jié)應(yīng)力性骨折中的應(yīng)用價(jià)值。方法 ?選取2016年1月~2019年12月經(jīng)臨床及隨訪檢查確診應(yīng)力性骨折患者34例,行膝關(guān)節(jié)磁共振檢查35例(1例為雙側(cè)),按照磁共振序列分為冠狀位、矢狀位T1WI組和冠狀位T2WI、矢狀位PD壓脂組,分析兩組磁共振差異進(jìn)行。結(jié)果 ?34例患者中膝關(guān)節(jié)表現(xiàn)為應(yīng)力性損傷1例,35例應(yīng)力性損傷均有骨髓水腫信號(hào),其中2例應(yīng)力性損傷3級(jí),33例應(yīng)力性損傷4級(jí);兩組骨折線走行與皮質(zhì)垂直或輕度成角;冠狀位、矢狀位T1WI骨折線顯示率(100.00%)高于冠狀位T2WI、矢狀位PD壓脂組骨折線顯示率(93.94%)。結(jié)論 ?MRI能顯示細(xì)微的應(yīng)力性損傷,并能清晰顯示骨折線及軟組織情況,冠狀位或矢狀位T1WI觀察骨折線優(yōu)于T2WI、PD壓脂序列。
關(guān)鍵詞:膝關(guān)節(jié);應(yīng)力性骨折;應(yīng)力性損傷;磁共振
中圖分類號(hào):R445.2;R684 ? ? ? ? ? ? ? ? ? ? ? ? ? ? 文獻(xiàn)標(biāo)識(shí)碼:A ? ? ? ? ? ? ? ? ? ? ? ? ? ?DOI:10.3969/j.issn.1006-1959.2020.11.054
文章編號(hào):1006-1959(2020)11-0166-02
Abstract:Objective ?To explore the magnetic resonance imaging manifestation of stress fracture diagnosis and analyze the application value of magnetic resonance imaging T1WI sequence in knee stress fracture.Methods ?34 patients with stress fracture diagnosed by clinical and follow-up examination from January 2016 to December 2019 were selected, 35 patients of knee joint magnetic resonance examination (1 case was bilateral), according to the magnetic resonance sequence, it was divided into coronal, sagittal T1WI group and coronal T2WI, sagittal PD lipid pressure group, analysis of the difference between the two groups of magnetic resonance.Results ?Among the 34 patients, the knee showed 1 case of stress injury, 35 cases of stress injury had bone marrow edema signal, 2 cases of stress injury level 3, 33 cases of stress injury level 4; the fracture line of the two groups was perpendicular to the cortex or slightly angled; the fracture rate of the T1WI fracture line in the coronal and sagittal positions (100.00%) was higher than that in the lipid pressure group of the coronary T2WI,the fracture line display rate (93.94%) in the sagittal PD lipid pressure group.Conclusion ?MRI can show subtle stress injury, and can clearly show the fracture line and soft tissue, coronal or sagittal T1WI observation fracture line is better than T2WI, PD lipid sequence.
Key words:Knee joint;Stress fracture;Stress injury;Magnetic resonance
應(yīng)力性骨折(stress fracture)系指長(zhǎng)期、反復(fù)的外力作用于骨的某一部位,而引起的慢性骨折。隨著健身體育運(yùn)動(dòng)的廣泛開(kāi)展和保健查體制度的實(shí)施,減肥、健身已經(jīng)成為人們?nèi)粘;顒?dòng)的一部分。然而不恰當(dāng)?shù)?、過(guò)度的運(yùn)動(dòng),必然帶來(lái)運(yùn)動(dòng)損傷,對(duì)骨骼施加外在的應(yīng)力[1]。應(yīng)力性骨折占運(yùn)動(dòng)醫(yī)學(xué)就診者的10%以上[2]。常規(guī)影像技術(shù)如X線攝片、CT檢查不能明確顯示應(yīng)力性骨折的損傷過(guò)程。隨著MRI技術(shù)的發(fā)展,磁共振被廣泛應(yīng)用于慢性損傷影像診斷。在診斷應(yīng)力性骨折中,MRI已經(jīng)成為確定應(yīng)力性骨折診斷的金標(biāo)準(zhǔn)[3]。本研究針對(duì)臨床診斷的應(yīng)力性損傷35例,分析其MRI影像分級(jí)及損傷特點(diǎn),膝關(guān)節(jié)應(yīng)力性損傷的影像診斷,以及T1WI序列在顯示應(yīng)力性骨折線中的優(yōu)勢(shì),現(xiàn)報(bào)道如下。