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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXV | Pages 245 - 245
1 Jun 2012
Deshmukh A Rodriguez J Klauser W Rasquinha V Lubinus P Ranawat C Thakur R
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Introduction

Studies have documented encouraging results with the use of fluted, tapered, modular, titanium stems in revision hip arthroplasty with bone loss. However, radiographic signs of osseointegration and patterns of reconstitution have not been previously categorized.

Materials and Methods

64 consecutive hips with index femoral revision using a particular stem of this design formed the study cohort. Serial radiographs were retrospectively reviewed by an independent observer. Bone loss was determined by Paprosky's classification. Osseointegration was assessed by a slight modification of the criteria of Engh et al. Femoral restoration was classified according to Kolstad et al. Pain and function was documented using Harris Hip Score (HHS).


Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_III | Pages 323 - 323
1 Mar 2004
Klauser W Lubinus P Eberle R
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We report the results of a cementless modular revision component which has been used in our hospital since 1993. There were 103 patients, in which the aforementioned cementless femoral revision component was used. Patients were evaluated, using both a modiþed HHS and serial radiographs performed preoperatively, at 2 weeks, 3 months and annually postoperatively. The patients were followed for a minimum of 4 years. Pre-operatively, bony defects were classiþed on radiographs according to the classiþcation of Mallory. Three hips were excluded from the evaluation: 1 was lost to follow-up and 2 were deceased. 100 hips with an average follow-up of 75 months were retrospectively reviewed. Indication for revision was aseptic loosening in 96 cases and infection in 4. Average number of previous hip surgeries in this patient group was 2.3. Average pre-operative hip score was 48,8 compared to an average postoperative hip score of 74,4. Postoperative complications included 2 infections and 2 cases of DVT with occurrence of PE in 1 case, 4 postoperative dislocations, 2 cases with radiographic subsidence of the femoral component and 1 case with sciatic nerve lesion. Intraoperative complications included femoral fractures upon dislocation of the hip or impaction of the new stem in 37 cases. At time of latest review there were no clinical or radiographic signs of component loosening. The incidence of postoperative and intraoperative complications are comparable to the literature. Clinical and radiographic results of the cementless, modular titanium revision component are promising and support its continued use.