The router bit extraction technique for removing a well-fixed humeral stem in revision shoulder arthroplasty.
Bone Joint J
; 101-B(10): 1280-1284, 2019 Oct.
Article
em En
| MEDLINE
| ID: mdl-31564150
ABSTRACT
AIMS:
A number of methods have been described to remove a well-fixed humeral implant as part of revision shoulder arthroplasty. These include the use of cortical windows and humeral osteotomies. The router bit extraction technique uses a high-speed router bit to disrupt the bone-implant interface. The implant is then struck in a retrograde fashion with a square-tip impactor and mallet. The purpose of this study was to determine the characteristics and frequency of the different techniques needed for the removal of a well-fixed humeral stem in revision shoulder arthroplasty. PATIENTS ANDMETHODS:
Between 2010 and 2018, 288 revision shoulder arthroplasty procedures requiring removal of a well-fixed humeral component were carried out at a tertiary referral centre by a single surgeon. The patient demographics, indications for surgery, and method of extraction were collected.RESULTS:
Of the 288 revisions, 284 humeral stems (98.6%) were removed using the router bit extraction technique alone. Four humeral stems (1.39%) required an additional cortical window. Humeral osteotomy was not necessary in any procedure. Most of the humeral stems removed (78.8%) were cementless. Of the four humeral stems that required a cortical window, three involved removal of a hemiarthroplasty. Two were cemented and two were cementless.CONCLUSION:
The router bit extraction technique removed a well-fixed humeral component in a very high proportion of patients (98.6%). This method allows surgeons to avoid more invasive approaches involving a cortical window or humeral osteotomy, and their associated complications. Cite this article Bone Joint J 2019;101-B1280-1284.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Falha de Prótese
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Remoção de Dispositivo
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Hemiartroplastia
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Artroplastia do Ombro
Tipo de estudo:
Etiology_studies
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Incidence_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Aged
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Bone Joint J
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Estados Unidos