关节镜检查术后髌下脂肪垫的纤维瘢痕：磁共振成像
Fibrous scar in the infrapatellar fat pad after arthroscopy: MR imaging.
作者信息
Tang G, Niitsu M, Ikeda K, Endo H, Itai Y
机构信息
Department of Radiology, Institute of Clinical Medicine, University of Tsukuba, Japan.
出版信息
Radiat Med. 2000 Jan-Feb;18(1):1-5.
PURPOSE
We describe the MR appearance of fibrous scars in the infrapatellar fat pad after arthroscopy.
MATERIALS AND METHODS
The subjects were 96 patients who underwent arthroscope-assisted anterior cruciate ligament (ACL) reconstruction and were examined by oblique sagittal MR imaging at different follow-up intervals. Two observers evaluated the characteristics of the fibrous scars in the infrapatellar fat pad.
RESULTS
All fibrous scars with low signal intensity were accentuated at the portal and coursed horizontally through the infrapatellar fat pad. The fibrous scar within the fat pad occurred and peaked within 6 months after arthroscopy. It then subsided gradually and had disappeared by one year later in nearly half of the patients.
CONCLUSION
Identifying MR imaging characteristics of fibrous scars in the fat pad after arthroscopy may be clinically helpful to differentiate these scars from other abnormalities that involve the infrapatellar fat pad.
目的
我们描述关节镜检查后髌下脂肪垫内纤维瘢痕的磁共振成像（MR）表现。
材料与方法
研究对象为96例行关节镜辅助下前交叉韧带（ACL）重建的患者，在不同随访间隔接受斜矢状面MR成像检查。两名观察者评估髌下脂肪垫内纤维瘢痕的特征。
结果
所有低信号强度的纤维瘢痕在切口处更为明显，并水平穿过髌下脂肪垫。脂肪垫内的纤维瘢痕在关节镜检查后6个月内出现并达到高峰。然后逐渐消退，近一半患者在1年后消失。
结论
识别关节镜检查后脂肪垫内纤维瘢痕的MR成像特征可能有助于临床将这些瘢痕与累及髌下脂肪垫的其他异常情况区分开来。
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