Hoffa's recess in the infrapatellar fat pad of the knee on MR imaging
Hoffa's recess in the infrapatellar fat pad of the knee on MR imaging
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DOI：
10.1007/s00276-004-0275-6
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发表时间：
2005-03-01
影响因子：
1.4
通讯作者：
Bayram, M
中科院分区：
文献类型：
--
作者：
Özkur, A;Adaletli, I;Bayram, M
Hoffa髌下脂肪垫是位于髌韧带后侧和真实的关节囊之间的结构。它通常在膝关节的磁共振（MR）图像上可见。本研究的目的是确定膝关节髌下脂肪垫（隐窝）下后缘处的液体样凹陷的患病率和形状，并寻找脂肪垫中的液体图像与关节积液之间的关系。对350例连续膝关节MR成像检查评价髌下脂肪垫中凹陷的存在、位置、大小和形状以及关节积液的存在。研究人群包括145名女性和205名男性，年龄在5至80岁之间（平均年龄37.5岁）。髌下脂肪垫隐窝的MRI显示率为15.43%（54/350），形态多样，其中线状或卵圆形35例（64.81%），管状5例（9.26%），球形14例（25.92%）。此外，在髌下脂肪垫中观察到一个腱鞘囊肿。球状和管状隐窝可能会与囊性髌下脂肪垫病变相混淆，如腱鞘囊肿、腱鞘囊肿、游离体或结节性滑膜炎。髌下脂肪垫的存在可能与关节积液无关。
The infrapatellar fat pad of Hoffa is a structure that is located in the space between the back side of the patellar ligament and the real capsule. It is routinely visualized on magnetic resonance (MR) images of the knee. The purpose of this study was to determine the prevalence and shape of a fluid-like indentation at the inferior posterior margin of the infrapatellar fat pad of the knee (recess) and to look for a relation between the liquid image in the fat pad and joint effusion. Three hundred and fifty consecutive MR imaging examinations of the knee were evaluated for the presence, location, size and shape of a recess in the infrapatellar fat pad and existence of joint effusion. The study population consisted of 145 females and 205 males aged between 5 and 80 years old (mean age 37.5 years). The recess in the infrapatellar fat pad was revealed on MR imaging in 54 of 350 knees (15.43%) and had a variable shape, consisting of 35 linear or ovoid (64.81%), five pipe-shaped (9.26%) and 14 globular (25.92%). Additionally, one ganglion cyst was observed in the infrapatellar fat pad. Globular and pipe-shaped recesses may be confused with cystic infrapatellar fat pad pathologies such as ganglion cyst, meniscal cyst, loose body or nodular synovitis. The existence of an infrapatellar fat pad may not be related to the presence of joint effusion.