Influence of surgical approach on component positioning in primary total hip arthroplasty.
BMC Musculoskelet Disord
; 16: 180, 2015 Aug 05.
Article
em En
| MEDLINE
| ID: mdl-26242180
ABSTRACT
BACKGROUND:
Minimal invasive surgery (MIS) has gained growing popularity in total hip arthroplasty (THA) but concerns exist regarding component malpositioning. The aim of the present study was to evaluate femoral and acetabular component positioning in primary cementless THA comparing a lateral to a MIS anterolateral approach.METHODS:
We evaluated 6 week postoperative radiographs of 52 hips with a minimal invasive anterolateral approach compared to 54 hips with a standard lateral approach. All hips had received the same type of implant for primary cementless unilateral THA and had a healthy hip contralaterally.RESULTS:
Hip offset was equally restored comparing both approaches. No influence of the approach was observed with regard to reconstruction of acetabular offset, femoral offset, vertical placement of the center of rotation, stem alignment and leg length discrepancy. However, with the MIS approach, a significantly higher percentage of cups (38.5 %) was malpositioned compared to the standard approach (16.7 %) (p = 0.022).CONCLUSIONS:
The MIS anterolateral approach allows for comparable reconstruction of stem position, offset and center of rotation compared to the lateral approach. However, surgeons must be aware of a higher risk of cup malpositioning for inclination and anteversion using the MIS anterolateral approach.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Procedimentos Cirúrgicos Minimamente Invasivos
/
Artroplastia de Quadril
/
Posicionamento do Paciente
/
Articulação do Quadril
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
BMC Musculoskelet Disord
Assunto da revista:
FISIOLOGIA
/
ORTOPEDIA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Alemanha