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Archives of Orthopaedic and Trauma Surgery

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01-02-2015 | Trauma Surgery

Breakage of cephalomedullary nailing in operative treatment of trochanteric and subtrochanteric femoral fractures

Authors: Christian von Rüden, Sven Hungerer, Peter Augat, Oliver Trapp, Volker Bühren, Christian Hierholzer

Published in: Archives of Orthopaedic and Trauma Surgery | Issue 2/2015

Abstract

Introduction

Mechanical breakage of cephalomedullary nail osteosynthesis is a rare complication attributed to delayed fracture union or nonunion. This study presents a series of cases of breakage and secondary lag screw dislocation after cephalomedullary nailing. The aim of this study was to identify factors that contribute to cephalomedullary nail breakage.

Materials and methods

In a retrospective case series review between 02/2005 and 12/2013, we analyzed 453 patients with trochanteric and subtrochanteric fracture who had been treated by cephalomedullary nailing. Fractures were classified according to AO/OTA classification. 13 patients with cephalomedullary nail breakage were included (failure rate 2.9 %).

Results

Seven patients were women, and six men with a mean age of 72 years (range 35–94). Implant breakage occurred 6 months postoperatively (range 1–19 months). In ten cases, breakage was secondary to delayed or nonunion, which was thought to be mainly due to insufficient reduction of the fracture, and in two cases due to loss of the lag screw because of missing set screw. In one case, breakage was apparent during elective metal removal following complete fracture healing. Short-term outcome was evaluated 6 months after operative revision using Harris hip score in 11 out of 13 patients showing a mean score of 84 %. Complete radiological fracture healing has been found in 11 patients available for follow-up within 6 months after revision surgery.

Discussion

Breakage of cephalomedullary nail osteosynthesis of trochanteric fractures is a severe complication. The results of our study demonstrate that revision surgery provides good clinical and radiological short-term results. Predominately, failures of trochanteric fractures are related to lack of surgeon performance. Therefore, application of the implant requires accurate preoperative planning, advanced surgical experience to evaluate the patient and the fracture classification, and precise surgical technique including attention to detail and anatomical reduction of the fracture fragments.

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Title: Breakage of cephalomedullary nailing in operative treatment of trochanteric and subtrochanteric femoral fractures
Authors: Christian von Rüden
Sven Hungerer
Peter Augat
Oliver Trapp
Volker Bühren
Christian Hierholzer
Publication date: 01-02-2015
Publisher: Springer Berlin Heidelberg
Published in: Archives of Orthopaedic and Trauma Surgery / Issue 2/2015
Print ISSN: 0936-8051
Electronic ISSN: 1434-3916
DOI: https://doi.org/10.1007/s00402-014-2121-6

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Springer Medicine

Breakage of cephalomedullary nailing in operative treatment of trochanteric and subtrochanteric femoral fractures

Abstract

Introduction

Materials and methods

Results

Discussion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Introduction

Materials and methods

Results

Discussion

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