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Open AccessReconstruction of mechanical leg axis using non-modular cemented hinged prosthesis in complex primary total knee arthroplasty
Modular cementless knee arthroplasty systems are capable of precise reconstruction of the mechanical axis. However, they are considered more susceptible to complications. In contrast, non-modular cemented syst...
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Article
Open AccessThe role of different acetabular morphologies on patient-reported outcomes following periacetabular osteotomy in borderline hip dysplasia
The treatment option for borderline hip dysplasia (BHD) includes hip arthroscopy and periacetabular osteotomy (PAO). To the present day the controversial discussion remains, which intervention to prefer. Liter...
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Article
Open AccessSpacer rotation technique allows precise evaluation of gap balance in total knee arthroplasty
The symmetry of the flexion and extension gap influences the functional and long-term outcome after total knee arthroplasty (TKA). Most surgeons check it by applying varus and valgus stress using spacers. This...
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Article
Open AccessAseptic midterm survival rates between different cemented tibial stem designs in hinged total knee arthroplasty: a 6-year evaluation from the German Arthroplasty Registry
The rate of revision TKA and thus the use of hinged implants (HI) steadily rises. Aseptic loosening lies on the top of the failure patterns. However, no evidence exists until now based on national scale high-c...
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Article
Open AccessOptimized reamer geometry for controlled reaming of the proximal femur
Preparation of the femoral proximal medullary cavity by reaming is essential for intramedullary nail osteosynthesis and hip revision arthroplasty. The use of reamers sometimes exerts high torsional forces on t...
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Article
Open AccessValidity of leg length measurement in the supine and standing position compared with pelvic survey X-ray after total hip arthroplasty
The correct adjustment of leg length is a major goal in the implantation of total hip replacements (THRs). Differences in leg length can lead to functional impairment and patient dissatisfaction. By determinin...
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Article
Open AccessPlain radiographic indices are reliable indicators for quantitative bone mineral density in male and female patients before total hip arthroplasty
Osteoporosis is underdiagnosed in patients undergoing total hip arthroplasty (THA). Bone mineral density measurement by dual-energy X-ray absorptiometry (DXA) is the gold standard, but indices on plain hip rad...
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Article
Open Access“Koehlers teardrop is not a reliable landmark for assessing the centre of rotation after Total hip arthroplasty” – a retrospective radiological study
Various anatomical landmarks have become established in radiography for the assessment of cup positioning after total hip arthroplasty (THA). The most important one is Koehler's teardrop figure (KTF). However,...
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Article
Open AccessTopical vancomycin powder does not affect patella cartilage degeneration in primary total knee arthroplasty and conversion rate for secondary patella resurfacing
Vancomycin powder (VP) is an antibiotic first introduced in pediatric spinal surgery to prevent surgical site infections (SSI). Recently its topical application was expanded to total hip and knee arthroplasty ...
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Article
Open AccessC-reactive protein during the first 6 postoperative days after total hip arthroplasty cannot predict early periprosthetic infection
Periprosthetic joint infection (PJI) after total hip arthroplasty (THA) remains a serious complication in orthopaedic surgery. C-reactive protein (CRP) is widely used as a marker to screen for inflammatory com...
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Article
Open AccessPrediction of complications and surgery duration in primary TKA with high accuracy using machine learning with arthroplasty-specific data
The number of primary total knee arthroplasties (TKA) is expected to rise constantly. For patients and healthcare providers, the early identification of risk factors therefore becomes increasingly fundamental ...
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Article
Open AccessKomplikationen und deren Behandlung nach PAO
Die Hüftdysplasie stellt die häufigste Ursache der sekundären Koxarthrose dar. Die periazetabuläre Osteotomie (PAO) nach Ganz ist ein etabliertes Therapieverfahren, welches eine reproduzierbare Korrektur der d...
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Article
Open AccessDoes stem profile have an impact on the failure patterns in revision total knee arthroplasty?
Revision total knee arthroplasty (RTKA) has been increasing continuously. The results of RTKA still remain unsatisfactory. Failure patterns and risk factors in RTKA were thoroughly analyzed, with periprostheti...
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Article
Open AccessDie Flexion zur Entlassung ist kein Prädiktor der Gelenkfunktion ein Jahr nach Knietotalendoprothese
In der Knieendoprothetik spielt das Bewegungsausmaß des operierten Gelenks eine wichtige Rolle. Als Qualitätskriterium wird eine Flexion von mindestens 90° zum Entlassungszeitpunkt angesetzt und als prädiktive...
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Book Series
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Chapter
Knieendoprothetik: Assistierte Knieprothesenimplantation
Die am weitesten verbreiteten Möglichkeiten der assistierten Knieprothesenimplantation sind die Navigation, die Robotik und patientenspezifische Instrumente (PSI). Assistenzsysteme erlauben die präzisere Umset...
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Article
Open AccessLess soft tissue release in total knee arthroplasty for anteromedial compared to posteromedial knee osteoarthritis
In total knee arthroplasty (TKA), the aim of achieving a mechanically straight leg axis as well as symmetrical and equally wide gaps has become established as the gold standard in terms of surgical technique. ...
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Article
Open AccessImpact of stem profile on the revisability and the need for osteotomy in well-fixed cemented revision total knee arthroplasty implants
While re-revision total knee arthroplasty (ReRTKA) steadily increases, the ease and bone-sparing removal of RTKA implants is gaining more and more in importance. Biomechanical data suggest that cemented conica...
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Book
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Chapter
Knieendoprothetik: Operation der bi/trikondylären Oberflächenersatzprothese
Im folgenden Kapitel wird die Technik der Primärimplantation eines bikondylären Oberflächenersatzes beschrieben. Dies beinhaltet die Lagerung und Abdeckung, den operativen Zugang und die konventionelle Instrum...
