[Dislocated XXXX of the lesser trochanter with malrotation of the stem after robot assisted implantation of a cementless hip prosthesis: a casuistic report].

@entity1 @entity174 @entity158 @entity130 @entity570
This paper presents the case of a 63 year old female with a severe @entity570 . She got a robot assited implantation of a cementless hip prosthesis (Osteolock, Stryker-Howmedica, M  hlheim). As operation robot the CASPAR-System (Orto-Maquet, Rastatt) was used. Initially, the clinical progress of the @entity1 was fine. She was nearly painfree within 14 days and showed an acceptable range of motion in the operated joint (flexion/ extension 90 degrees /05 degrees /00 degrees ). She was mobilized with crutches and 15 kg weight bearing at the operated leg. 3 weeks postoperative the @entity1 complaint about @entity158 without @entity130 or intensification of the weight bearing. X-rays showed not only a dislocated @entity174 of the lesser trochanter, but also a sinking combined with a malrotation of the stem. A revision operation was necessary,where we implanted a cemented stem. Now clinical progress was completely satisfying.
