What Researchers Did
Researchers conducted a long-term prospective study using MRI to track changes in lesion size in early-stage osteonecrosis of the femoral head (ONFH) in SARS patients who did not undergo surgery.
What They Found
The study followed 51 SARS patients (84 hips) with early-stage ONFH over five years. The mean lesion volume decreased from 10.12 cm³ initially to 7.82 cm³ at 2.5 years, and further to 5.67 cm³ at the five-year follow-up. Complete lesion regression was observed in six hips, and 80 hips showed more than a 15% reduction in lesion volume over the study period.
What This Means for Canadian Patients
This research suggests that early-stage osteonecrosis of the femoral head, particularly when caused by corticosteroids, can naturally improve over time without surgical intervention. For Canadian patients, this indicates that a period of watchful waiting and MRI monitoring might be a viable approach, as lesion sizes can significantly decrease. It highlights the potential for natural healing in some cases of ONFH.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
This observational study tracked natural changes in lesion size without comparing them to a control group or evaluating specific interventions.