Spannungsoptische Oberflächenanalyse an humanen Femurpräparaten vor und nach Implantation unterschiedlicher Schenkelhalsprothesenmodelle

Wieners, Gero; Pech, Marion Rachel Marie; Streitparth, Florian; Jansson, Volkmar; Plitz, W.

doi:10.1055/s-2007-960500

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…Auf den Adapter können alle standardmäßig verfügbaren Köpfe aufgesetzt werden [6,18]. Experimentelle Analysen bescheinigen der CUT-Prothese im Vergleich mit anderen Schenkelhalsprothesen eine der physiologischen Situation des proximalen Femurs nahe liegende Lasteinleitung [7][8][9]. Außer kurzfristiger Ergebnismitteilungen existiert lediglich eine Studie, die sich mit den mittelfristigen Ergebnissen der CUT-Prothese befasst (ca.…”

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8-Jahres-Resultate der Schenkelhalsprothese ESKA‐CUT

et al. 2009

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The analysis of the eight-year follow-up of 82 CUT prostheses shows that the implant does not fulfil our expectations of a femoral neck prosthesis, in spite of the possibility of a less invasive and bone-saving implantation technique. In view of unacceptable survival rates, valgisation changes of the joint geometry and critical changing procedures, from our point of view the femoral neck prosthesis CUT does not represent a recommendable alternative implant in young, active patients.

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8-Jahres-Resultate der Schenkelhalsprothese ESKA‐CUT

et al. 2009

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“…26 During their biomechanical investigations using the CUT implant amongst other implants Wieners et al found micromotions to be with 165 μm slightly over the critical value of 150 μm. 45…”

Section: Resultsmentioning

confidence: 99%

Femoral neck prostheses: A systematic analysis of the literature

et al. 2019

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Primary total hip arthroplasty (THA) is one of the most successful surgical procedures. Considering the demographic change the use of new ultra-short femoral implants has gained importance especially when treating young patients. Main features are bone conservation, metaphyseal anchoring and thus reducing stress shielding by proximal load transferring. The objective of this study is to give an overview over the subject of femoral neck prostheses. A systematic review was conducted. A total number of 27 publications were taken into this systematic review. Over all, just a few follow-up, biomechanical and radiostereometric studies have been conducted in the past. Still no long-term results (>10 years of follow-up) are available. The available mid-term results indicate unsatisfactory survival rates. Aseptic loosening was the most common reason for revision. Valgus angle and good bone mineral density were considered to be crucial for primary stability of femoral neck prostheses. Register data report a very low percentage of femoral neck prostheses in THA with even more diminishing implantation rates. To conclude, further studies are necessary in order to provide evidence-based recommendations. Currently, due to the inhomogeneous and poor data a reasonable and legitimate recommendation cannot be given.

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“…Mit diesem Implantattyp wird eine physiologische proximale Krafteinleitung erzielt und somit ein "stress shielding", wie man es bei diaphysären Verankerungen häufig beobachtet, vermieden [3,6,8,12].…”

Section: Schenkelhalsprothese · Hüftgelenkersatz · Alloarthroplastik unclassified

“…Physiological proximal force induction is achieved with this type of implant with the consequence that "stress shielding" as frequently seen in various methods of diaphyseal anchorage is avoided [3,6,8,12].…”

Section: Schenkelhalsprothese · Hüftgelenkersatz · Alloarthroplastik mentioning

confidence: 99%

Implantationstechnik der Schenkelhalsprothese Typ CUT beim Hüftgelenkersatz

Rudert

Leichtle

et al. 2007

Orthop Traumatol

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From 2002 to 2006, 49 uncemented CUT prostheses were implanted in 36 patients. Average age was 45.1 years (20-60 years). Inpatient stay amounted to 10.8 days and operating time to 74 min. Average blood loss through drainage was 795 ml, an average of 297 ml transfused back. Transfusion was necessary in ten patients. There were no cases of postoperative infection, nerve lesion, or hip dislocation. Patients were examined preoperatively and followed up at 6 weeks and 1 year. Harris Hip Score improved from 46.1 points preoperatively to 81.6 points at 6 weeks and 95.7 points at 1 year. Average leg length discrepancy of 0.7 cm (minimum -0.8, maximum 2.2 cm) was determined radiologically in 31 of 49 patients. It became necessary to replace two of the 49 stems due to aseptic loosening, in the first case at 19 months (femoral head osteonecrosis, lupus erythematosus, and taking cortisone), and in the second case 3 years after implantation (steroid-induced femoral head necrosis related to Crohn's disease and azathioprine [Imurek] therapy). One cone and head component had to be revised 1 month after implantation due to impingement syndrome. One ceramic head fractured 2.5 years after implantation so that cone and head required revision. The overall follow-up time was 37 months on average (minimum 12, maximum 55 months).

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Spannungsoptische Oberflächenanalyse an humanen Femurpräparaten vor und nach Implantation unterschiedlicher Schenkelhalsprothesenmodelle

Cited by 6 publications

References 7 publications

8-Jahres-Resultate der Schenkelhalsprothese ESKA‐CUT

8-Jahres-Resultate der Schenkelhalsprothese ESKA‐CUT

Femoral neck prostheses: A systematic analysis of the literature

Implantationstechnik der Schenkelhalsprothese Typ CUT beim Hüftgelenkersatz

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