Management of Bone Marrow Oedema

Diagnostic Evaluation

The American College of Radiology recommends MRI with T2-weighted and STIR sequences as the preferred imaging modality to demonstrate bone marrow oedema and assess for associated findings 1
Correlate imaging patterns with clinical context to identify underlying causes, such as deep oedema extending >1 cm from the articular surface, associated fracture lines, or geographic patterns with surrounding reactive oedema 2, 3, 1
Rule out subchondral insufficiency fracture early, as MRI identifies these before radiographs become abnormal, and untreated cases can progress to articular collapse requiring arthroplasty 4
Consider inflammatory arthritis when bone marrow oedema is combined with synovitis/effusion, as this requires disease-modifying therapy rather than symptomatic treatment 4

For idiopathic/ischemic bone marrow oedema syndrome, iloprost infusion is a recommended treatment, with a dosage of 50 μg iloprost intravenously over 6 hours daily for 5 consecutive days, although the exact protocol may vary 1
The American College of Radiology suggests that disease-modifying anti-rheumatic drugs (DMARDs) or biologic therapy targeting the underlying inflammatory condition may be effective for inflammatory causes, such as axial spondyloarthritis or chronic non-bacterial osteitis 2, 1
Protected weight-bearing with immobilization using total contact casting or non-removable knee-high devices for 6-12 weeks is a recommended treatment for traumatic/mechanical causes 6
Custom footwear with specialized insoles may be used after the acute phase to prevent recurrence of traumatic bone marrow oedema 6

Do not assume all bone marrow oedema is benign, as new or increasing oedema correlates with pain progression and can lead to joint destruction if the underlying cause is not addressed 4
Do not delay diagnosis, particularly in diabetic patients with Charcot arthropathy, as delayed multidisciplinary referral leads to significant clinical deterioration 5, 6, 1
Do not ignore the clinical context, as bone marrow oedema in healthy athletes or postpartum patients may be physiologic, whereas the same finding in an elderly patient with acute pain suggests insufficiency fracture 2, 3
Monitor for progression of subchondral insufficiency fractures, which can progress to articular fragmentation and collapse, particularly in the medial femoral condyle of middle-aged to elderly females 4