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題 名 | Computerized Tomography in the Diagnosis of Subluxation of the Distal Radioulnar Joint=以電腦斷層攝影診斷遠側橈尺關節半脫位 |
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作 者 | 江昭慶; 張明超; 林建甫; 劉毅; 羅惠熙; | 書刊名 | 中華醫學雜誌 |
卷 期 | 61:12 1998.12[民87.12] |
頁 次 | 頁708-715 |
分類號 | 416.61 |
關鍵詞 | 電腦斷層攝影; 圓弧法; 遠側橈尺關節; 中心法; Mino氏法; Computerized tomography; Congruity method; Distal radioulnar joint; Epicenter method; Mino's criteria; |
語 文 | 英文(English) |
中文摘要 | 背景臨床上診斷遠側橈尺關節半脫位相當困難,以普通的X光片來診斷並不準確 。然而,電腦斷層攝影卻可提供此關節清楚之解剖位置及動態。過去之文獻曾提出3種以電 腦斷層攝影來診斷遠側橈尺關節半脫位之方法:即 Mino 氏法、中心法及圓弧法。它們僅限 於討論患有徵狀的側關節,且並無明確之結論。本研究之目的是要評估以電腦斷層攝影來診 斷遠側橈尺關節半脫位之最準確方法。 方法40位懷疑有遠側橈尺關節半脫位的患者接受兩側電腦斷層攝影;而攝影時患者需將兩 前臂分別置於正常旋位、全旋後位和全旋前位,再以3種方法對兩側遠側橈尺關節來評估明 顯不穩定及無症狀之腕關節。 結果最後分析共54個遠側橈尺關節:有17個遠側橈尺關節明顯不穩定,其診斷是靠正確 的側位X光片,而其中11個關節的診斷是由手術中的病理發現再確定的;其餘的37個遠 側橈尺關節則屬正常組。 比較此3種以電腦斷層攝影的評估方法,中心法的敏感度和 Mino 氏法及圓弧法相近,然而中心法的特異性較 Mino 氏法及圓弧法為高。 結論為準確診斷遠側橈尺關節半脫位,建議患者將患側前臂置於正常旋位、全旋後位和全旋 前位進行電腦斷層攝影,再以中心法來評估。 |
英文摘要 | Background. The diagnosis of distal radioulnar joint (DRUJ) subluxation is difficult. Routine radiographs are imprecise in clinical analysis. However, the anatomy and dynamic configuration of this articulation have been clearly defined utilizing computerized tomography (CT). Three CT criteria for the evaluation of DRUJ subluxation have been reported: Mino's criteria, the epicenter method and the congruity method. Previous reports discussed these criteria in the analysis of symptomatic DRUJ, but no clear conclusion has been reached. The purpose of this study is to investigate accurate criteria of CT in defining subluxation of the DRUJ. Methods. Eighty distal radioulnar joints in 40 patients with suspected DRUJ subluxation underwent CT scans of both symptomatic and asymptomatic wrists. The CT scan was obtained through the DRUJ with the forearm in neutral rotation, active full supination and active full pronation. Three CT criteria were used to assess the DRUJ in all positions of unstable and normal wrists. Results. Overall, 54 wrists were included in the final analysis. Seventeen symptomatic wrists had frank DRUJ instability diagnosed from true lateral radiographs, and 11 were reconfirmed from intraoperative pathology. The other 37 wrists had normal DRUJ. Among the three methods, the epicenter method had similar sensitivity to Mino's criteria and the congruity method. However, the epicenter method had much better specificity than Mino's criteria and the congruity method. Conclusions. For accurate diagnosis of subluxation of the DRUJ, CT scan through the symptomatic DRUJ in neutral rotation, active full supination, active full pronation and analysis with the epicenter method are recommended. |
本系統中英文摘要資訊取自各篇刊載內容。