We found moderate to strong evidence that no adverse effects on subsidence and osseous integration of the femoral stem after uncemented THA occur after immediate UWB .
The aim of this systematic review was to find evidence -based support in the literature to allow immediate unrestricted weight bearing after  primary uncemented total hip arthroplasty ( THA ) .
Accelerated rehabilitation programs for THA are becoming increasingly popular to shorten hospital stay and to facilitate rapid restoration of function .
The goals of these rehabilitation programs could be more easily achieved if immediate unrestricted weight bearing ( UWB ) could be allowed after a THA .
So far , however , immediate weight bearing is frequently contraindicated in widely accepted protocol s for uncemented THA due to fear for subsidence and absence of osseous integration of the femoral stem .
Thus , frequently protected weight bearing and restricted activities are still advocated for at least 6 weeks after surgery .
In addition , we analyzed the literature to come to a recommendation on gait pattern and walking aid .
Full weight-bearing after cementless total hip arthroplasty
Abstract . In a prospect i ve study of cementless total hip arthroplasty , 19 hips in 17 patients ( Group A ) were allowed full weight-bearing immediately after the operation while 18 hips in 16 patients ( Group B ) were first allowed weight-bearing after 6 weeks . Patients were matched for sex , age at surgery , height , weight , and follow-up period and there were no significant differences in hip scores between the two groups . Rehabilitation to gain walking ability with a cane lasted 5.8 days for Group A and 44.8 days for Group B ( P=0.0001 ) . The hospital stay after surgery was 30.1 days for Group A and 46.7 days for Group B ( P=0.006 ) . All patients showed bone ingrowth radiographically . There were no complications in either group . Résumé . Dans une étude prospect i ve d'arthroplastie totale de la hanche non-cimentée , z 17 malades ( 19 hanches ) ( Groupe A ) ont eu l'autorisation de pratiquer un appui complet immédiatement après l'intervention t and is que 16 malades ( 18 hanches ) ( Groupe B ) l'ont fait après 6 semaines . Les malades ont été appariés en regard du sexe , de l'âge à la chirurgie , de la taille , du poids , et de la durée du suivi . Il n'y avait pas de différence significative en ce qui concerne les scores du fonctionnement de la hanche entre les deux groupes . La durée de rééducation nécessaire pour obtenir la capacité de marche à l'aide d'une canne était de 5,8 jours pour le Groupe A et de 44,8 jours pour Groupe B ( P=0.0001 ) . La durée de séjour à l'hôpital après l'intervention était de 30,1 jours pour le Groupe A et de 46,7 jours pour le Groupe B ( P=0.006 ) . Nous avons constaté chez tous les patients une fixation osseuse à la radiographie . Il n'y avait aucune complication dans les deux groupes
We found moderate to strong evidence that no adverse effects on subsidence and osseous integration of the femoral stem after uncemented THA occur after immediate UWB .
The aim of this systematic review was to find evidence -based support in the literature to allow immediate unrestricted weight bearing after  primary uncemented total hip arthroplasty ( THA ) .
Accelerated rehabilitation programs for THA are becoming increasingly popular to shorten hospital stay and to facilitate rapid restoration of function .
The goals of these rehabilitation programs could be more easily achieved if immediate unrestricted weight bearing ( UWB ) could be allowed after a THA .
So far , however , immediate weight bearing is frequently contraindicated in widely accepted protocol s for uncemented THA due to fear for subsidence and absence of osseous integration of the femoral stem .
Thus , frequently protected weight bearing and restricted activities are still advocated for at least 6 weeks after surgery .
In addition , we analyzed the literature to come to a recommendation on gait pattern and walking aid .