Contrast-enhanced MR imaging of subchondral insufficiency fracture of the femoral head: a preliminary comparison with that of osteonecrosis of the femoral head

被引：31

作者：

Miyanishi, Keita ^{[1
]}

Hara, Toshihiko ^{[1
]}

Kaminomachi, Shigekazu ^{[2
]}

Maeda, Hiroki ^{[3
]}

Watanabe, Hideyuki ^{[3
]}

Torisu, Takehiko ^{[1
]}

机构：

[1] Kyushu Rosai Hosp, Dept Orthopaed Surg, Kokuraminami Ku, Kitakyushu, Fukuoka 8000296, Japan

[2] Fukuoka Cent Hosp, Dept Orthopaed Surg, Fukuoka, Japan

[3] Kyushu Rosai Hosp, Dept Radiol, Kitakyushu, Fukuoka 8000296, Japan

来源：

ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY | 2009年 / 129卷 / 05期

关键词：

Femoral head; Insufficiency fracture; Avascular necrosis; MRI; ROTATIONAL OSTEOTOMY; NECROSIS;

D O I：

10.1007/s00402-008-0642-6

中图分类号：

R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];

学科分类号：

100224 [整形外科学];

摘要：

Subchondral insufficiency fracture of the femoral head (SIF) may be confused with osteonecrosis of the femoral head (ON) due to clinical and imaging similarities. Contrast-enhanced MR images in patients with SIF (ten hips in ten patients) were retrospectively reviewed and compared with those from patients with ON (ten hips in six patients). Low-signal intensity bands on T1-weighted images were present within the femoral head in all hips examined. The segment proximal to the band was contrast-enhanced following IV gadolinium administration in nine of ten hips (90%) with SIF and in none of the 10 hips with ON. These results suggest that the presence of contrast enhancement in the segment proximal to the low-signal intensity band in the femoral head may serve as a supplemental diagnostic measure for the differentiation of SIF from ON.

引用

页码：583 / 589

页数：7

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