The enhanced stability of ring pin-based tension band wiring in canine transverse patellar fracture models.

Objective: To evaluate the tensile strength and biomechanical properties of the tension band wire technique using a ring pin in a canine patellar transverse fracture model and to compare it with conventional tension band wire techniques.

Methods: The patella with adjacent structures were harvested from 11 adult canine cadavers and osteotomized transversely. The tension band wiring technique with a single Kirschner wire and metal wire was applied to the KM group (n = 7).

A novel splice site mutation of the arginine vasopressin-neurophysin II gene identified in a kindred with autosomal dominant familial neurohypophyseal diabetes insipidus.

Autosomal dominant familial neurohypophyseal diabetes insipidus is an inherited deficiency of arginine vasopressin (AVP), and this is caused by mutations in the AVP-neurophysin II (AVP-NP II) gene. Most of these mutations have been located in the signal peptide or in the NP II moiety. In the present study, we have analyzed the AVP-NP II gene in a Korean family.