Clinical and radiographic analysis of a partially cemented glenoid implant: five-year minimum follow-up.
J Shoulder Elbow Surg
; 19(7): 1091-7, 2010 Oct.
Article
em En
| MEDLINE
| ID: mdl-20382041
ABSTRACT
HYPOTHESIS:
This study reviewed 20 consecutive shoulders that underwent total shoulder arthroplasty with a partially cemented glenoid component at a minimum follow-up of 5 years. We hypothesized that bone growth between the fins of the component would result in improved glenoid fixation and reduced lucent line formation.METHODS:
Patients were evaluated with the Simple Shoulder Test (SST), Constant scores, and radiographs. Postoperative radiographs taken at 6 weeks and 5 years were compared. Independent evaluators assigned every glenoid a lucency grade from 0 (no lucency) to 5 (gross lucency) and assessed the central peg for bone presence between the fins.RESULTS:
Mean SST and Constant scores were 11.1 and 82.4, respectively. Mean lucency scores increased from 0.1 to 0.3 from 6 weeks to the 5-year follow-up (P = .05). At the 5-year follow-up, 15 of 20 patients had similar or increased bone presence between the central peg fins, and none had a worsening lucency score. The 5 patients with decreased or absent bone presence had worsening lucency scores, from a mean of 0.2 to 1.0 (P = .05). There was no difference in SST score (P = .54) or Constant score (P = .37) between the two groups.CONCLUSIONS:
This partially cemented glenoid component had low rates of lucency at the 5-year follow-up. Similar or increased bone growth between the fins of the central peg was associated with no progression of glenoid lucencies. Decreased or absent bone presence between the fins at follow-up correlated with slight advancement of glenoid lucent lines.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Desenho de Prótese
/
Artroplastia de Substituição
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Prótese Articular
Tipo de estudo:
Observational_studies
/
Prognostic_studies
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Risk_factors_studies
Limite:
Aged
/
Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article