The Transverse Sigmoid Notch Morphology Unravelled.

Several studies have described pathology in relation to transverse sigmoid notch morphology, using the Tolat transverse sigmoid notch classification. It is believed that the entire shape of a sigmoid notch can be described using Tolat sigmoid types. We hypothesised that the determination of the sigmoid notch shape (SNS) depends on the level of the transverse CT plane on the axial axis of the distal radius.

[Malunion of the distal radius: correction with a 3D-printed patient-specific plate].

Thanks to new developments in the field of 3D printing, surgeons have been able to use 3D-printed templates for correction osteotomy of the distal radius; recently, 3D-printed titanium implants, tailor-made for patients, have been introduced. This technique makes it possible to fix the bone elements in an anatomical position when performing a correction osteotomy in patients with complex malunions of the distal radius. In this article we discuss this new technique and illustrate it through presentation of a case.