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Updated: May 23, 2026
05:55
Tension-Free Weight-Bearing Model of Steroid-Induced Osteonecrosis of Femoral Head in Rats
Published on: September 27, 2024
Definition of bone necrosis by the pathologist
Cristina Fondi1, Alessandro Franchi
1Department of Human Pathology and Oncology University of Florence Medical School Florence, Italy.
Summary
Osteonecrosis, a bone disorder, impairs blood supply and can cause severe bone damage. This review covers its common skeletal sites, including the femoral head, knee, and jaw.
Area of Science:
- Orthopedics and Bone Biology
- Pathology and Medical Imaging
Background:
- Osteonecrosis is a significant bone disorder characterized by impaired blood supply, potentially leading to bone collapse and severe anatomical changes.
- It is not a distinct disease but a consequence of various conditions affecting bone vascularity, with bone remodeling and structural weakening also implicated.
- The presentation of osteonecrosis varies based on the affected site and causative factors.
Purpose of the Study:
- To review the primary skeletal manifestations of osteonecrosis.
- To discuss the clinical and pathological features of osteonecrosis in key anatomical locations.
Main Methods:
- Literature review of studies on osteonecrosis.
- Synthesis of information on the pathology and clinical presentation of osteonecrosis in different skeletal sites.
Main Results:
- Osteonecrosis commonly affects the subarticular regions, notably the femoral head and knee.
- Osteonecrosis of the jaw is another significant manifestation discussed.
- The review highlights the diverse morbid anatomy and histopathology depending on the location and etiology.
Conclusions:
- Osteonecrosis is a complex condition with varied presentations across the skeleton.
- Understanding its manifestations in the femoral head, knee, and jaw is crucial for diagnosis and management.
- Further research into the underlying mechanisms of bone remodeling and structural integrity in osteonecrosis is warranted.
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