Computed modeling of humeral mid-shaft fracture treated by bundle nailing

Development of an additively-manufactured functionally-graded expandable implant via the application of the adaptive response surface method: feasibility study on intramedullary humerus nail

The paper introduces the concept of the rational design of a deployable humeral intramedullary nail plug based on a honeycomb structure used for the surgical treatment of humeral shaft fractures. The concept serves for to restore the axial alignment of bone fragments and to maintain stability via bone-nail friction and locking screws. The design nail plug was gained by optimisation process the Latin Hypercube Sampling Design algorithm and Multi-Objective Genetic Algorithm. It was shown that we can use statistical shape function combined by 3 D printing for designing of a new rationally designed implants.

Elastic Intramedullary Nails in the Treatment of Multi-Segmental Humeral Fracture in a Polytrauma Patient

A polytrauma patient with a life-threatening condition is a quite demanding situation due to special considerations regarding the time, the way, and the sequence of the necessary procedures. Elastic intramedullary nails (EIN) could be used under these conditions for adult patients with humeral fractures requiring fixation. Here we present a case of a multi-segmental closed humerus fracture in a polytrauma patient treated by EIN. The general condition of the patient and the need for multiple surgical procedures required the selection of a minimally invasive and time-saving fixation technique. The patient’s follow-up was uneventful with complete healing of the humeral fracture; the functional scores results are excellent at five years post operatively. A review of the literature revealed limited published cases of humeral fractures (128 patients) treated by EIN, despite the fact that the results are quite encouraging. Based on our results and the current literature, we believe that EIN could become an effective treatment choice for multi-level humerus fractures, especially in damage control surgery.