The Open Orthopaedics Journal




ISSN: 1874-3250 ― Volume 13, 2019

Invasive Electromagnetic Field Treatment in Osteonecrosis of the Femoral Head: A Prospective Cohort Study



C. Windisch*, 1, W. Kolb 2, E. Röhner 1, M. Wagner 1, A. Roth 1, G. Matziolis 1, A. Wagner 1
1 Department of Orthopaedic Surgery, Friedrich-Schiller-University Jena at Rudolf-Elle-Hospital Eisenberg, Klosterlausnitzer Str. 81, Eisenberg, Germany
2 Department of Trauma and Orthopaedic Surgery, Bethesda Hospital, Stuttgart, Germany

Abstract

Introduction :

The purpose of this prospective cohort study was to compare the surgical treatment of non-ONFH in adulthood by curettage and bone grafting with treatment by curettage and bone grafting in combination with invasive electromagnetic field treatment using Magnetodyn®. This was assessed by examining whether electromagnetic field treatment has a positive additive effect on the clinical parameters modified Harris Hip Score according to Haddad, Cook and Brinker, Merle d'Aubigné hip score and visual analogue scale, and on the subsequent need for treatment by total hip arthroplasty.

Materials and Methodology :

The prospective, non-randomised study included 35 patients with unilateral or bilateral osteonecrosis of the femoral head. These were divided into two groups according to the surgical treatment regime and assessed over a 12-month follow-up period. The study group (Group 1) comprised 19 patients (14 men and 5 women) with a total of 22 non-ONFH, who underwent minimally invasive curettage, bone grafting and electromagnetic field treatment (Magnetodyn®) by implantation of a bipolar induction screw. The control group (Group 2) comprised 16 patients (12 men and 4 women) with a total of 18 non-ONFH, who underwent minimally invasive curettage and bone grafting without Magnetodyn® therapy. At the initial pre-operative examination and the 6 and 12-month follow-up, all patients were assessed by clinical examination and radiological monitoring, and by bilateral hip MRI. The clinical evaluation was based on the modified Harris Hip Score according to Haddad, Cook and Brinker, the Merle d`Aubigné hip score and the visual analogue scale (VAS).

Results :

At the time of follow-up, total hip arthroplasty (THA) had been performed in four patients in Group 1 (18%). In Group 2, four patients (22%) had received a THA (n.s.). Both procedures led to an improvement in the clinical scores (Harris Hip Score, Merle d`Aubigné score and VAS), although no significant difference was observed.

Conclusion :

The authors conclude that electromagnetic field treatment with Magnetodyn®, using the special signal protocol applied here, as an adjunct to curettage and autologous bone grafting to treat non-ONFH, does not produce better clinical results and does not offer better prophylaxis for the avoidance of total hip arthroplasty over all ARCO stages.

Keywords: ARCO (Association Research Circulation Osseous), bone grafting, core decompression, invasive electromagnetic stimulation, Magnetodyn®, nontraumatic osteonecrosis of the femoral head (non-ONFH)..


Article Information


Identifiers and Pagination:

Year: 2014
Volume: 8
First Page: 125
Last Page: 129
Publisher Id: TOORTHJ-8-125
DOI: 10.2174/1874325020140515001

Article History:

Received Date: 18/1/2014
Revision Received Date: 27/4/2014
Acceptance Date: 10/5/2014
Electronic publication date: 13/6/2014
Collection year: 2014

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© Windisch et al.; Licensee Bentham Open.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.5/) which permits unrestrictive use, distribution, and reproduction in any medium, provided the original work is properly cited.


* Address correspondence to this author at the Department of Orthopaedic Surgery, Friedrich-Schiller-University Jena at Rudolf-Elle-Hospital Eisenberg, Klosterlausnitzer Str. 81, Eisenberg, Germany; Tel/Fax: 036471824433; E-mail: c.b.windisch@t-online.de



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