Norbert Kastner

Learn More
Trotz weitgehender Standardisierung der operativen Therapie von primär malignen Knochentumoren im Becken und an der Wirbelsäule ist die Prognose bei diesen zentral gelegenen Tumoren deutlich schlechter als bei Lokalisation im Bereich der Extremitäten. Dies ist einerseits auf eine in vielen Fällen verzögerte Diagnose mit entsprechend größerem Tumorvolumen,(More)
The aim of the study was to investigate outcome differences between female and male patients after implantation of low-contact-stress (LCS) mobile-bearing total knee prostheses at a minimum follow-up of five years with respect to clinical and radiological parameters. We retrospectively analysed 128 prostheses in 126 patients (90 women and 34 men) using our(More)
BACKGROUND Low-contact-stress (LCS) mobile-bearing total knee arthroplasty (TKA) (Johnson & Johnson, New Brunswick, NJ; previously: DePuy, Warsawa, USA) provides excellent functional results and wear rates in long-term follow-up analyses. Radiological analysis shows radiolucent lines (RLL) appearing immediately or two years after primary implantation,(More)
The aim of this study was to compare total knee arthroplasty (TKA) procedures between different countries with regard to epidemiological data and surgical technique by reference to the worldwide arthroplasty registers. A systematic search was carried out using the EFORT website to identify the relevant arthroplasty registers. We extracted data with respect(More)
To the Editor, Patient-individualised cutting blocks have drowned the market of total knee arthroplasty (TKA), promising not only faster but even easier surgical success after adequate planning [1–4]. The authors want to discuss how to adequately achieve and improve tibial alignment and flexion gap balancing using the patient individualised TruMatch total(More)
The aim of this study was to analyse a possible correlation between the tibial slope and range of motion (ROM) after implantation of the low-contact-stress (LCS), mobile-bearing, total knee arthroplasty (TKA) after a minimum follow-up of ten years. Eighty-three TKAs in 66 patients were investigated in this retrospective correlation analysis at a minimum(More)
To the Editor, Although primary total knee arthroplasty (TKA) has been a procedure with high surgical success and various systems have revealed an outstanding long-term survival in recent decades [1], our patients still report knee pain or further problems in 20 % of cases [2, 3]. These cases are mostly caused by improper placement of the femoral shield or(More)
A prospective single-cohort study was designed to include 20 patients with enchondromas but was stopped because of poor early results. Four patients with an enchondroma, three in the proximal humerus and one in the distal femur, were treated by curettage and filling of the defect with Norian SRS cement. Clinical and radiological follow-up including CT and(More)
It is imperative to understand the most common failure modes of total ankle arthroplasty (TAA) to appropriately allocate the resources, healthcare costs, enhancing surgical treatment methods, and improve design and longevity of the implant. The objective of this study was to investigate the primary mode or modes of failure (Loose talar component, loose(More)
Benigne Knochentumoren und tumorähnliche Veränderungen stellen eine sehr heterogene Gruppe von Knochenläsionen dar, die v. a. im Kindes- und Jugendalter ein umsichtiges und systematisches Vorgehen erfordern und zumindest basale Kenntnisse hinsichtlich Diagnose und Therapie der verschiedenen Entitäten voraussetzen. Etwa 1/3 aller Fälle, die in einem(More)