[Research progress of bone marrow edema-like lesions in knee osteoarthritis]
Hou-Jian Zhang1, Sai-Ya Ye1, Xiao-Jian Wang1
1Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou 310006, Zhejiang, China.
Abstract:
Knee osteoarthritis-associated bone marrow edema-like lesions (KOA-BMLs) is a common MRI imaging feature, which is mainly manifested as abnormal bone marrow hyperintensity in subchondral bone on T2 imaging. The formation of KOA-BMLs may be related to the abnormality of lower limb force line and subchondral bone perfusion, and related histopathological studies showed that the remodeling of bone and bone marrow in these damaged areas was abnormally increased. In KOA patients, the size of BMLs can fluctuate or even disappear in a relatively short period of time, and was closely related to pain, subchondral bone cyst formation, and the progression of KOA. However, the current treatment methods for KOA-BMLs are limited, and there is no uniform guideline or expert consensus, mainly includingmedication, physical therapy and surgical treatment. This article reviews the research progress of the disease characteristics and treatment of KOA-BMLs in order to provide guidance for the clinical diagnosis and treatment of KOA-BMLs.
Insights
Knee osteoarthritis-associated bone marrow edema-like lesions (KOA-BMLs) are common MRI findings linked to pain and disease progression. Current treatments are limited, highlighting the need for better diagnostic and therapeutic strategies.
Area of Science:
- Orthopedics
- Radiology
- Pathology
Background:
- Knee osteoarthritis-associated bone marrow edema-like lesions (KOA-BMLs) are identified on MRI as subchondral bone hyperintensity.
- KOA-BMLs may stem from altered lower limb biomechanics and impaired subchondral bone perfusion.
- Histopathology reveals abnormal bone and bone marrow remodeling in affected areas.
Purpose of the Study:
- To review current research on the characteristics and treatment of KOA-BMLs.
- To provide guidance for clinical diagnosis and treatment of KOA-BMLs.
Main Methods:
- Literature review of studies on KOA-BMLs.
- Analysis of disease characteristics, including MRI findings and histopathology.
- Evaluation of current treatment modalities: medication, physical therapy, and surgery.
Main Results:
- KOA-BMLs are dynamic, fluctuating in size and sometimes resolving.
- BML size correlates with pain, subchondral cyst formation, and osteoarthritis progression.
- Existing treatments for KOA-BMLs lack uniform guidelines and expert consensus.
Conclusions:
- KOA-BMLs are significant indicators of knee osteoarthritis activity and progression.
- There is a critical need for improved diagnostic criteria and standardized treatment protocols for KOA-BMLs.
