Calcar screw position in proximal humerus fracture fixation: Don't miss high!

ABSTRACT:

Introduction

In locked plate fixation of proximal humerus fractures, the calcar is an important anchor point for screws providing much-needed medial column support. Most locking plate implants utilize a fixed-trajectory locking screw to achieve this goal. Consequently, adjustments of plate location to account for patient-specific anatomy may result in a screw position outside of the calcar. To date, little is known about the consequences of "missing" the calcar during plate positioning. This study sought to characterize the biomechanics associated with proximal and distal placement of locking plates in a two-part fracture model.

Materials and methods

This experiment was performed twice, first with elderly cadaveric specimens and again with osteoporotic sawbones. Two-part fra

SUBMITTER: Mehta S 

PROVIDER: S-EPMC7413303 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature