Comparable clinical outcome and implant longevity after CT- or MRI-based patient-specific instruments for total knee arthroplasty: a 2-year follow-up of a RCT.
Knee Surg Sports Traumatol Arthrosc
; 28(6): 1821-1826, 2020 Jun.
Article
em En
| MEDLINE
| ID: mdl-31270591
ABSTRACT
PURPOSE:
Patient-specific instruments (PSI) are already widespread used in total knee arthroplasty (TKA). Either computed tomography (CT) scans or magnetic resonance imaging (MRI) scans are used pre-operatively to create jigs to guide resection during surgery. This study is a sequel of previous work that showed significantly more radiological outliers for posterior slope when CT-based guides were used. The aim of this study was to assess differences in revision rate and clinical outcome between the two groups at 2-year follow-up.METHODS:
At the 2-year follow-up, 124 patients were analysed in this prospective, randomised single-blind study. A survival analysis with revision of the TKA as endpoint was performed. Patients fulfilled four patient-reported outcome measurements (PROMs). Scores on the questionnaires were compared between both groups at the different follow-up visits.RESULTS:
At final follow-up, there was no significant difference in the survival rates of the CT- and MRI-based PSI surgery. Postoperatively, the PROMs significantly improved within each group compared with the pre-operative values. There were no significant differences for the PROMs between both groups at the 2-years follow-up.CONCLUSIONS:
Although previous results showed more outliers regarding posterior slope for CT-based PSIs, no difference in revision rate or the outcome of PROMs was found at 2-year follow-up. Further research to determine what the influence is of radiological outliers on implant survival and clinical outcomes is necessary. LEVEL OF EVIDENCE I.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Imageamento por Ressonância Magnética
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Tomografia Computadorizada por Raios X
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Análise de Falha de Equipamento
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Artroplastia do Joelho
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Cirurgia Assistida por Computador
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Prótese do Joelho
Tipo de estudo:
Clinical_trials
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Observational_studies
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Prognostic_studies
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Qualitative_research
Limite:
Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article