TY  - JOUR
IS  - 180
AV  - public
PB  - BioMed Central
ID  - heidok19418
VL  - 16
EP  - 7
CY  - London
N2  - 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.  
JF  - BMC Musculoskeletal Disorders
UR  - https://archiv.ub.uni-heidelberg.de/volltextserver/19418/
SP  - 1
A1  - Innmann, Moritz Maximilian
A1  - Streit, Marcus R.
A1  - Kolb, Jeanette
A1  - Heiland, Jochen
A1  - Parsch, Dominik
A1  - Aldinger, Peter R.
A1  - Königshausen, Matthias
A1  - Gotterbarm, Tobias
A1  - Merle, Christian
SN  - 1471-2474
TI  - Influence of surgical approach on component positioning in primary total hip arthroplasty
Y1  - 2015///
ER  -