中华放射学杂志
中華放射學雜誌
중화방사학잡지
Chinese Journal of Radiology
2010年
2期
172-175
,共4页
膝关节%创伤和损伤%磁共振成像
膝關節%創傷和損傷%磁共振成像
슬관절%창상화손상%자공진성상
Knee joint%Wounds and injuries%Magnetic resonance imaging
目的 评价MRI对膝关节Ⅴ型骨挫伤的诊断价值及临床意义.方法 从1672例急性膝关节外伤的MRI资料中筛选出具有Ⅴ型骨挫伤的患者,分析其膝关节MRI表现.结果 Ⅴ型骨挫伤发生率2.6%(43/1672),表现为同时累及髌骨内下缘及股骨外髁前外缘的异常信号,在T_1WI上表现为低信号,在T_2WI上表现为等或稍高信号,在压脂PDWI上为高信号,在矢状面、冠状面及横断面上均可以敏感发现.MRI上显示骨折9例,软骨损伤29例,髌骨向外半脱位或脱位27例.髌骨内侧支持带损伤37例,在横断面上显示最佳并能进行分级.结论 MRI能准确显示膝关节Ⅴ型骨挫伤,对髌骨一过性脱位的诊断和治疗有重要意义.在MR检查中发现Ⅴ型骨挫伤时应加作髌骨横断面检查,以评估髌骨内侧支持带的损伤情况.
目的 評價MRI對膝關節Ⅴ型骨挫傷的診斷價值及臨床意義.方法 從1672例急性膝關節外傷的MRI資料中篩選齣具有Ⅴ型骨挫傷的患者,分析其膝關節MRI錶現.結果 Ⅴ型骨挫傷髮生率2.6%(43/1672),錶現為同時纍及髕骨內下緣及股骨外髁前外緣的異常信號,在T_1WI上錶現為低信號,在T_2WI上錶現為等或稍高信號,在壓脂PDWI上為高信號,在矢狀麵、冠狀麵及橫斷麵上均可以敏感髮現.MRI上顯示骨摺9例,軟骨損傷29例,髕骨嚮外半脫位或脫位27例.髕骨內側支持帶損傷37例,在橫斷麵上顯示最佳併能進行分級.結論 MRI能準確顯示膝關節Ⅴ型骨挫傷,對髕骨一過性脫位的診斷和治療有重要意義.在MR檢查中髮現Ⅴ型骨挫傷時應加作髕骨橫斷麵檢查,以評估髕骨內側支持帶的損傷情況.
목적 평개MRI대슬관절Ⅴ형골좌상적진단개치급림상의의.방법 종1672례급성슬관절외상적MRI자료중사선출구유Ⅴ형골좌상적환자,분석기슬관절MRI표현.결과 Ⅴ형골좌상발생솔2.6%(43/1672),표현위동시루급빈골내하연급고골외과전외연적이상신호,재T_1WI상표현위저신호,재T_2WI상표현위등혹초고신호,재압지PDWI상위고신호,재시상면、관상면급횡단면상균가이민감발현.MRI상현시골절9례,연골손상29례,빈골향외반탈위혹탈위27례.빈골내측지지대손상37례,재횡단면상현시최가병능진행분급.결론 MRI능준학현시슬관절Ⅴ형골좌상,대빈골일과성탈위적진단화치료유중요의의.재MR검사중발현Ⅴ형골좌상시응가작빈골횡단면검사,이평고빈골내측지지대적손상정황.
Objective To explore the MRI appearances of type Ⅴ bone contusion of knee, and explore the diagnostic value and clinical significance of MRI. Methods A retrospective review of 1672 consecutive MRI examinations of acutely injured knees was performed to screen patients with type Ⅴ bone contusion. The MRI findings of them were analyzed by two musculoskeletal radiologists. Results The type Ⅴ bone contusion of knee was found in 43 (2.6%)patients, involving both the inferomedial patella and the anterolateral femoral condyle. Bone contusion was defined as low signal on T_1WI, intermediate or slight hypointense signal on T_2WI,and high signal intensity on fat saturation PDWI, which could be easily detected on axial, sagittal or coronal MR images. Other concomitant specific MR findings included fracture in 9 patients, chondral injury in 29 patients, and lateral patellar subluxation or complete dislocation in 27 patients. Injury of the medial retinaculum was diagnosed and classified in 37 cases, which could be observed best on axial images. Conclusions MRI was accurate in detecting the type Ⅴ bone contusion and that is very helpful for diagnosis and treatment of transient lateral patellar dislocation,and should be used as a routine examination for knee trauma. Axial MR examination should be performed to evaluated the medial patellar retinaculum injury when type Ⅴ bone contusion was found.
