MRI relaxation constants of the articular and sub-articular viable and necrotic epiphyseal cartilage.

<p>Large lesion (5 × 5 mm incision): 3, 5, 9, weeks post-surgery</p><p>Small lesion (3 × 4 mm incision): 4, 6, 10 weeks post-surgery</p><p>Due to technical problems, the T₂ measurement was invalid for the 3-week specimen and was not included.</p><p>MRI relaxation constants of the articular and sub-articular viable and necrotic epiphyseal cartilage.