1.Madelung deformity Dr/ Hytham Nafady

2. Definition Defective development of the inner one third of the distal radial epiphysis. 3. Etiology Unknown, it can be a part of Turner syndrome or Dyschondrosteosis (Madelung deformity & mesomeric dwarfism). 4. Demographics It is more common in adolescent females. 5. Radiological features: Distribution: Usually bilateral. 6. Plain x-ray 7. Plain x-ray PALateralDistal radial epiphysisMedial tiltingVolar tiltingRadiusLateral bowingDorsal bowingDistal ulnar epiphysisLateral tiltingUlna Carpal bonesDorsal displacement Wedge shaped, with Volar displacement lunate subsidance (Bayonet configuration) 8. Bayonet configuration 9. MRIHypertrophy of the short radiolunate ligament