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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 162 - 162
1 Sep 2012
Kralinger F Voigt C Platz A Schaser K Leung F Babst R Majewski M Stöckle U Käch K
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Introduction

A review of the literature showed a discrepancy between biomechanical and clinical studies on fracture fixation failure in patients with poor bone quality.

The objective of the present study is to assess the influence of local bone status on complications after surgical treatment of proximal humerus fractures.

Methods

A prospective cohort study was initiated in 2007. The inclusion criteria were closed displaced fractures of the proximal humerus, primary fracture treatment with a Philos plate, patients aged 50 to 90, normal pre-trauma function of both shoulders in accordance to age, and monotrauma. There was active follow-up for one year with radiological assessment at clinical centers from four countries. Bone quality at the proximal humerus was determined preoperatively for the contralateral side of the fracture by CT scan, and at the contralateral radius within six weeks post-surgery by DXA. The occurrence of complications was monitored up to one year post-surgery. Independent x-ray evaluation and final classification of all complications will be performed at the end by a study review board using anonymous data and x-rays.