Multichannel computed tomography (MCCT) analysis of glenoid erosion in shoulder hemiarthroplasty: preliminary clinical applications.
Musculoskelet Surg
; 94 Suppl 1: S71-7, 2010 May.
Article
em En
| MEDLINE
| ID: mdl-20383684
ABSTRACT
Glenoid wear following shoulder hemiarthroplasty (HA) has been reported around 80% in long-term follow-up studies. Radiographic analysis is useful to depict glenoid erosion but does not evaluate accurately glenoid bone loss. Multichannel computed tomography (MCCT) allows scanning with submillimeter section thickness through dense areas of glenoid bone, despite the presence of metallic prostheses. In this preliminary study, we performed a MCCT analysis of glenoid erosion, in 15 patients with painful shoulder HA, at an average follow-up of 5.5 years. Clinical scores were retrospectively assessed at an early (1 year), medium (2.5 years), and late (5.5 years) follow-up. We analyzed the following glenoid features articular line space (ALS), glenoid length (bone stock), glenoid version, morphology of erosion (concentric, superior ed inferior tilt), and gross bone defects. Glenoid was retroversed in 13 patients (minimum 0 degrees maximum 8 degrees), antiversed in 2 patients (2 degrees and 6 degrees). Erosion was described as concentric in 13 patients, eccentric ("superior tilt") in 1 patient, biconcave in another patient. The mean glenoid length was 19.7 mm (min 16.4 max 22.7). Gross bone defects were described in six patients. The scores registered at latest follow-up showed a significant decrease compared with the values at 1 year (P < 0.001) and at 2.5 years (P < 0.001). The patients with glenoid erosion associated with gross defects and ALS
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Artroplastia
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Articulação do Ombro
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Tomografia Computadorizada por Raios X
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Lesões do Ombro
Tipo de estudo:
Observational_studies
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Prognostic_studies
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Qualitative_research
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Risk_factors_studies
Limite:
Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Musculoskelet Surg
Assunto da revista:
ORTOPEDIA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Itália