Redislocation after Bearing Exchange for the Treatment of Mobile Bearing Dislocation in Medial Unicompartmental Knee Arthroplasty
The Journal of Korean Knee Society
; : 234-240, 2018.
Article
em En
| WPRIM
| ID: wpr-759331
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE:
This study was conducted to investigate the outcomes of bearing exchange for the treatment of mobile bearing dislocation in medial unicompartmental knee arthroplasty (UKA). MATERIALS ANDMETHODS:
We retrospectively reviewed 18 patients (15 females and 3 males, mean age of 65 years) treated with bearing exchange following mobile bearing dislocation in medial UKA. The occurrence of bearing redislocation, the Oxford Knee Score, and radiographic changes at the last follow-up were investigated.RESULTS:
Bearing redislocation after bearing exchange occurred in 9 of 18 patients (50%). Of these 9 patients, 7 underwent conversion to total knee arthroplasty after bearing redislocation. The 9 patients without bearing redislocation showed good to excellent clinical outcomes at a mean follow-up of 55 months after bearing exchange. The non-redislocation group had a higher percentage of posterior dislocation of the bearing than the redislocation group (55.5% vs. 22.2%, p=0.040). Univariate logistic regression analysis showed no significant risk factors for bearing redislocation.CONCLUSIONS:
This study showed a high rate of bearing redislocation after isolated, mobile bearing exchange for bearing dislocation following medial UKA. Therefore, bearing exchange as a sole treatment should be carefully considered in selected patients with correctable causes of bearing dislocation.Palavras-chave
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Artroplastia
/
Modelos Logísticos
/
Estudos Retrospectivos
/
Fatores de Risco
/
Seguimentos
/
Artroplastia do Joelho
/
Luxações Articulares
/
Joelho
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
The Journal of Korean Knee Society
Ano de publicação:
2018
Tipo de documento:
Article