Subchondral insufficiency fracture of the knee: unicompartmental correlation to meniscal pathology and degree of chondrosis by MRI

Objective To assess the relationship between low- and high-grade subchondral insufficiency fracture of the knee (SIFK) and meniscal tear/type/location, severity of meniscal extrusion, grade of chondrosis, and extent of surrounding edema-like marrow signal intensity. Materials and methods Our retrosp...

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Bibliographic Details
Published in:Skeletal radiology 2021-11, Vol.50 (11), p.2185-2194
Main Authors: Allam, Emad, Boychev, George, Aiyedipe, Samuel, Morrison, William, Roedl, Johannes B., Singer, Adam D., Gonzalez, Felix M.
Format: Article
Language:English
Subjects:
Associations, institutions, etc
Edema
Extrusion
Imaging
Injuries
Knee
Lesions
Magnetic resonance imaging
Medical research
Medicine
Medicine & Public Health
Medicine, Experimental
Meniscus
Nuclear Medicine
Orthopedics
Pathology
Radiology
Scientific Article
Societies
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Summary:Objective To assess the relationship between low- and high-grade subchondral insufficiency fracture of the knee (SIFK) and meniscal tear/type/location, severity of meniscal extrusion, grade of chondrosis, and extent of surrounding edema-like marrow signal intensity. Materials and methods Our retrospective study included 219 patients with knee pain and SIFK seen on MRI. SIFK lesions were categorized from grade 1 to 4 with a low grade (1 and 2) vs high grade (3 and 4) distinction. Associations between SIFK grade, location, lesion dimensions, edema-like marrow signal intensity, incidence of meniscal tears/type/location, and chondrosis (grade 0 to grade 4), as well as patients’ age and weight, were assessed. Results Our analysis consisted of 115 males and 104 females with 17% of the patients showing grade 1 SIFK, 59% grade 2, 16% grade 3, and 8% grade 4. No chondrosis or low-grade chondrosis was mostly present in patients with low-grade SIFK (68.9%), whereas high-grade chondrosis was mostly present in patients with high-grade SIFK lesions (65.4%) ( p  
ISSN:0364-2348
1432-2161
DOI:10.1007/s00256-021-03777-w