Histopathologic findings of spontaneous osteonecrosis of the knee at an early stage: a case report

被引：12
|
作者：
Hatanaka, Hiroyuki [1 ]
Yamamoto, Takuaki [1 ]
Motomura, Goro [1 ]
Sonoda, Kazuhiko [1 ]
Iwamoto, Yukihide [1 ]
机构：
[1] Kyushu Univ, Grad Sch Med Sci, Dept Orthopaed Surg, Higashi Ku, 3-1-1 Maidashi, Fukuoka 8128582, Japan
来源：
SKELETAL RADIOLOGY | 2016年 / 45卷 / 05期
基金：
日本学术振兴会;
关键词：
Spontaneous osteonecrosis of the knee; Etiology; Subchondral fracture; Histopathology; ETIOLOGY; FRACTURE; BONE;
D O I：
10.1007/s00256-016-2328-4
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：
摘要：
We histopathologically examined a surgically resected full specimen obtained from an early-stage spontaneous osteonecrosis of the knee (SPONK). On a mid-coronal cut section of the resected medial femoral condyle, a linear fracture line paralleling the subchondral bone endplate was found. Histopathologically, prominent callus formation was seen comprising of reactive woven bone and granulation tissue on both sides of the fracture. Fracture-related bone debris was focally observed at the osteochondral side of the fracture. Definitive features of antecedent bone infarction such as creeping substitution and bone marrow necrosis were not detected. These findings suggested that SPONK was the result of a subchondral fracture rather than primary osteonecrosis.
引用
收藏
页码：713 / 716
页数：4
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