Three-dimensional MRI analysis of elbow anatomy and kinematics in children with ulnar dimelia.

Ulnar dimelia often presents with restricted elbow movement. To develop a treatment strategy to improve elbow mobility, a detailed understanding of the skeletal deformity is needed. We created 3-D models of the cartilage and bone in the elbows of four children with ulnar dimelia by segmentation of MRI scans.

Heterotopic respiratory mucosa as a potential source of ectopic Sonic hedgehog (SHH) in the development of complex radial polydactyly and ulnar dimelia.

We report eight cases of complex radial polydactyly and/or ulnar dimelia each with a fistulous lesion of heterotopic respiratory mucosa in radial-anterior skin ranging from shoulder to wrist. Although speculative, the coincidence of these rare conditions suggests a mechanistic relationship.

Analysis of Sequelae after Pediatric Phalangeal Fractures.

Introduction: The majority of pediatric phalangeal fractures yield excellent results following conservative or operative treatment. However, a certain subset of fractures is associated with long-term sequelae such as osteonecrosis, physeal growth arrest, malunion, and malposition.

Patients And Methods: This study summarizes all sequelae following phalangeal fractures treated within a 10-year period (2003-2012).