The meta- analysis of the current evidence base showed that minimally invasive THA is associated with a significantly increased risk of transient lateral femoral cutaneous nerve palsy ( p = 0.006 ) with no significantly better outcome
Over the past decade , minimally invasive surgery has gained popularity as a means of optimising early postoperative rehabilitation and increasing patient satisfaction and cosmesis following  total hip arthroplasty ( THA ) .
However , this surgical exposure has also been associated with increased risk of iatrogenic nerve injury and implant mal-positioning due to limited visibility compared to conventionally larger surgical incisions .
The purpose of this meta- analysis was to compare the outcomes of these two surgical exposures .
Prospective and comparative study of the anterolateral mini-invasive approach versus minimally invasive posterior approach for primary total hip replacement. Early results
The interest in minimally invasive approaches for total hip replacement ( THR ) has not waned in any way . We carried out a prospect i ve and comparative study in order to analyse the interest of the anterolateral minimal invasive ( ALMI ) approach in comparison with a minimally invasive posterior ( MIP ) approach .  A group of 35 primary THRs with a large head using the ALMI approach was compared with a group of 43 THR performed through a MIP approach .  The groups were not significantly different with respect to age , sex , bony mass index , ASA score , Charnley class , diagnoses and preoperative Womac index and PMA score . The preoperative Harris Hip Score was significantly lower in the ALMI group . The duration of surgical procedure was longer and the calculated blood loss more substantial in the ALMI group . The perioperative complications were significantly more frequent in this group , with four greater trochanter fractures , three false routes , one calcar fracture , and two metal back bascules versus one femoral fracture in MIP group . Other postoperative data ( implant positioning , morphine consumption , length of hospital stay , type of discharge ) are comparable , such as the early functional results . No other complication has been noted during the first 6 months . The ALMI approach uses the intermuscular interval between the tensor fascia lata and the gluteus medius . It leaves intact the abductor muscles , the posterior capsule and the short external rotators . The early clinical results are excellent , despite the initial complications related to the initial learning curve for this approach and the use of a large head . The stability and the absence of muscular damage should permit acceleration of the postoperative rehabilitation in parallel with less perioperative complications after the initial learning curve . RésuméNous rapportons une étude prospect i ve et comparative de l’abord antéro-latéral mini invasif de la hanche ( AMLI ) pour 35 arthroplasties totales primaires avec tête de gr and diamètre avec l’abord mini invasif postérieur ( MIP ) pour 43 arthroplasties . Les deux groupes n’étaient pas différents selon l’âge , le sexe , l’indice de masse osseuse , le score ASA , la classe de Charnley , le diagnostic , l’index WOMAC et le score de Merle d’Aubigné et Postel . Le score de Harris était plus faible dans le groupe AMLI . La durée opératoire et la perte sanguine calculée étaient plus importantes dans le groupe AMLI . Dans ce même groupe les complications per-opératoires étaient plus fréquentes , avec quatre fractures du gr and trochanter , trois fausses routes , une fracture du calcar , et deux bascules du composant acétabulaire alors qu’il n’y avait qu’une fracture fémorale dans le groupe MIP . Les autres données post-opératoires étaient identiques notamment le résultat fonctionnel précoce . Il n’y avait pas d’autre complication pendant les 6 premiers mois . L’abord antéro-latéral utilise l’intervalle entre le tenseur et le gluteus medius laissant intact les abducteurs , la capsule postérieure et les pelvi-trochantériens . Les résultats cliniques précoces étaient excellents en dépit des complications initiales liées à la courbe d’apprentissage et l’utilisation d’une tête de gr and diamètre . La stabilité et l’absence de dommage musculaire permettaient une récupération post-opératoire plus précoce
The meta- analysis of the current evidence base showed that minimally invasive THA is associated with a significantly increased risk of transient lateral femoral cutaneous nerve palsy ( p = 0.006 ) with no significantly better outcome
Over the past decade , minimally invasive surgery has gained popularity as a means of optimising early postoperative rehabilitation and increasing patient satisfaction and cosmesis following  total hip arthroplasty ( THA ) .
However , this surgical exposure has also been associated with increased risk of iatrogenic nerve injury and implant mal-positioning due to limited visibility compared to conventionally larger surgical incisions .
The purpose of this meta- analysis was to compare the outcomes of these two surgical exposures .