Ultrasound-guided subarachnoid block in a case of osteogenesis imperfecta in an adolescent girl presenting with femur fracture - A case report.

Osteogenesis imperfecta (OI) is a rare congenital bone disorder with underlying Type 1 collagen defect, in which patients are prone to fractures. The disease is associated with increased spinal curvature, short stature, loose joints, and poor muscle tone, all contributing to difficulty in identifying landmarks and hindering successful subarachnoid block. We report an interesting case of a successful ultrasonogram (USG)-guided subarachnoid block given in an adolescent girl with OI for fixation of femur fracture. This report underlines the importance USG in managing difficult neuraxial blocks.