scholarly journals Osteonecrosis of the Femoral Head with Collapsed Medial Lesion

2014 ◽  
Vol 7 ◽  
pp. CCRep.S18171 ◽  
Author(s):  
Kazuyuki Karasuyama ◽  
Takuaki Yamamoto ◽  
Goro Motomura ◽  
Yasuharu Nakashima ◽  
Akio Sakamoto ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Femoral Head ◽  
Bone Biopsy ◽  
Weight Bearing ◽  
Repair Process ◽  
Necrotic Lesion ◽  
Resonance Imaging ◽  
Gradual Onset ◽  
Weighted Magnetic Resonance Imaging ◽  
Appositional Bone

A 60-year-old female experienced the gradual onset of left hip pain without any triggering event. Radiographs showed vertical sclerosis in the center of the femoral head and the lesion inside the boundary demonstrated diffuse bony sclerosis. No collapse was observed at the weight-bearing portion on radiograph. However, computed tomography showed a subchondral collapse at the medial lesion. On T2-weighted magnetic resonance imaging, the necrotic lesion showed diffuse high-intensity signals that indicated a prominent repair process. Bone biopsy diagnosed osteonecrosis with associated prominent appositional bone and vascular granulation tissue.

scholarly journals Magnetic resonance imaging of avascular necrosis of the femoral head: predictive findings of total hip arthroplasty

2021 ◽  
Vol 10 (4) ◽  
pp. 205846012110083
Author(s):  
Matti Väänänen ◽  
Osmo Tervonen ◽  
Mika T Nevalainen
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Bone Marrow Edema ◽  
Necrotic Lesion ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Total Hip

Background Avascular osteonecrosis of the femoral head (AVNFH) is an ischemic condition which despite different treatments often leads to collapse of the femoral head and to total hip arthroplasty. However, the magnetic resonance imaging findings predisposing to disease progression and total hip arthroplasty are somewhat elusive. Purpose To evaluate the magnetic resonance imaging findings of AVNFH and to assess the patterns of findings which may predict total hip arthroplasty. Materials and methods A retrospective study was conducted with a total of 18 diagnosed AVNFH treated with core decompression combined with intraosseous stem cell treatment. After treatment, magnetic resonance imaging follow-ups were done at three-month and one-year follow-up or until total hip arthroplasty. Association Research Circulation Osseous classification and magnetic resonance imaging findings such as the size and the location of the AVNFH, bone marrow edema in femoral neck, effusion and subchondral fracture were evaluated. Results Hips advancing to total hip arthroplasty have more often bone marrow edema in femoral neck (90% vs. 0%), adjacent to necrotic lesion (100% vs. 43%) and in acetabulum (90% vs. 14%), but also subchondral fractures (70% vs. 0%), effusion (80% vs. 29%), and synovitis (80% vs. 14,3%). The greater size and the lateral weight-bearing location of the necrotic lesion also predicted future total hip arthroplasty. Conclusion Hips advancing to total hip arthroplasty have often a combination of pathognomonic AVNFH imaging findings compared to hips not advancing to total hip arthroplasty.

scholarly journals Assessment of lacrimal glands in thyroid eye disease with diffusion-weighted magnetic resonance imaging

2019 ◽  
Vol 84 ◽  
pp. 142-146 ◽  
Author(s):  
Ahmed Razek ◽  
El-hadidy Mohamed El-Hadidy ◽  
Mohamed El-Said Moawad ◽  
Nader El-Metwaly ◽  
Amr Abd El-hamid El-Said
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Thyroid Eye Disease ◽  
Eye Disease ◽  
Resonance Imaging ◽  
Lacrimal Glands ◽  
Diffusion Weighted ◽  
Weighted Magnetic Resonance Imaging
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