Browsing Bergen Open Research Archive by Author "Høl, Paul Johan"
Now showing items 1-17 of 17
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Cementing technique for primary knee arthroplasty: a scoping review
Refsum, Anders Myhre; Nguyen, Uy Viet; Gjertsen, Jan Erik; Espehaug, Birgitte; Fenstad, Anne Marie; Lein, Regina Küfner; Ellison, Peter; Høl, Paul Johan; Furnes, Ove (Peer reviewed; Journal article, 2019-08-27)Background and purpose - The optimal cementing technique for primary total knee arthroplasty (TKA) remains unclear. We therefore performed a scoping review based on available studies regarding cementation technique in ... -
Cementing techniques for total knee arthroplasty in Norwegian hospitals; a questionnaire-based study
Khan, Michelle; Gjertsen, Jan-Erik; Fenstad, Anne Marie; Refsum, Anders Myhre; Nguyen, Uy Viet; Hallan, Geir; Høl, Paul Johan; Furnes, Ove Nord (Journal article; Peer reviewed, 2023-11-18)Background: Cementing technique in total knee arthroplasty (TKA) may influence implant survival. There is limited knowledge about the results with clinically used techniques. The aim of this study was to investigate ... -
Corrosion and metal release from overlapping arterial stents under mechanical and electrochemical stress - An experimental study
Høl, Paul Johan; Gjerdet, Nils Roar; Jonung, Torbjörn (Peer reviewed; Journal article, 2019)Intra-arterial stenosis due to atherosclerosis is often treated with endovascular balloon dilatation with a metal stent. Restenosis is common and is frequently treated with a new stent placed inside the existing one or the ... -
Early aseptic loosening of a mobile-bearing total knee replacement
Kutzner, Ines; Halland, Geir; Høl, Paul Johan; Furnes, Ove; Gøthesen, Øystein; Figved, Wender; Ellison, Peter (Peer reviewed; Journal article, 2017)Background and purpose - Registry-based studies have reported an increased risk of aseptic tibial loosening for the cemented Low Contact Stress (LCS) total knee replacement compared with other cemented designs; however, ... -
The effect of blood protein adsorption on cellular uptake of anatase TiO2 nanoparticles
Allouni, Zouhir Ekeland; Gjerdet, Nils Roar; Cimpan, Mihaela Roxana; Høl, Paul Johan (Peer reviewed; Journal article, 2015-01-19)Protein adsorption onto nanoparticles (NPs) in biological fluids has emerged as an important factor when testing biological responses to NPs, as this may influence both uptake and subsequent toxicity. The aim of the present ... -
Effects of implant precoating and fat contamination on the stability of the tibial baseplate
Silva, Maya Maya Barbosa; Gjertsen, Jan-Erik; Moldestad, Irene Ohlen; Furnes, Ove Nord; Khan, Michelle; Høl, Paul Johan (Journal article; Peer reviewed, 2024)Background Approximately 5% of primary total knee arthroplasty patients require revision within 10 years, often due to distal component loosening. Application of a thin layer of PMMA cement as precoating on the tibial ... -
Inflammatory tissue reactions around aseptically loose cemented hip prostheses: A retrieval study of the Spectron EF stem with Reflection All-Poly acetabular cup
Wolf, Susann; Johannessen, Anne Christine; Ellison, Peter; Furnes, Ove Nord; Hallan, Geir; Rogg, Katharina; Skarstein, Kathrine; Høl, Paul Johan (Journal article; Peer reviewed, 2022)The cemented Spectron EF stem in combination with the cemented non-crosslinked Reflection All-Poly cup showed a high rate of mid-term aseptic loosening. However, the failure mechanisms are not fully known. We assessed the ... -
Isolation of TiNbN wear particles from a coated metal-on-metal bearing: Morphological characterization and in vitro evaluation of cytotoxicity in human osteoblasts
Sellin, Marie-Luise; Seyfarth-Sehlke, Anika; Aziz, Mahammad; Fabry, Christian; Wenke, Katrin; Høl, Paul Johan; Rios Mondragon, Ivan; Cimpan, Mihaela-Roxana; Frank, Marcus; Bader, Rainer; Jonitz-Heincke, Anika (Journal article; Peer reviewed, 2024)To improve the wear resistance of articulating metallic joint endoprostheses, the surfaces can be coated with titanium niobium nitride (TiNbN). Under poor tribological conditions or malalignment, wear can occur on these ... -
Label-free monitoring of uptake and toxicity of endoprosthetic wear particles in human cell cultures
Jonitz-Heincke, Anika; Tillmann, Jenny; Ostermann, Melanie; Springer, Armin; Bader, Rainer; Høl, Paul Johan; Cimpan, Mihaela Roxana (Peer reviewed; Journal article, 2018)The evaluation of the biological effects of endoprosthetic wear particles on cells in vitro relies on a variety of test assays. However, most of these methods are susceptible to particle-induced interferences; therefore, ... -
Metallionenivåer i blod fra pasienter med metall-mot-metall-hofteprotese
Høl, Paul Johan; Hallan, Geir; Indrekvam, Kari (Journal article; Peer reviewed, 2021)Bakgrunn: BHR-protese (Birmingham hip resurfacing) er satt inn i hoften til 445 personer i Norge. Bivirkninger av metallfrigjøring fra metall-mot-metall-leddflater av kobolt-krom-legering kan forekomme. Målet med studien ... -
Novel Nanoparticulate and Ionic Titanium Antigens for Hypersensitivity Testing
Høl, Paul Johan; Kristoffersen, Einar Klæboe; Gjerdet, Nils Roar; Pellowe, Amanda (Peer reviewed; Journal article, 2018-04-06)Titanium is used in a wide variety of materials ranging from medical devices to materials used in everyday life. Adverse biological reactions that could occur in patients, consumers, and workers should be monitored and ... -
Polycrystalline Diamond Coating on Orthopedic Implants: Realization and Role of Surface Topology and Chemistry in Adsorption of Proteins and Cell Proliferation
Zalieckas, Justas; Rios Mondragon, Ivan; Pobedinskas, Paulius; Kristoffersen, Arne Skodvin; Mohamed-Ahmed, Samih; Gjerde, Cecilie; Høl, Paul Johan; Hallan, Geir; Furnes, Ove Nord; Cimpan, Mihaela-Roxana; Haenen, Ken; Holst, Bodil; Greve, Martin Møller (Journal article; Peer reviewed, 2022)Polycrystalline diamond has the potential to improve the osseointegration of orthopedic implants compared to conventional materials such as titanium. However, despite the excellent biocompatibility and superior mechanical ... -
Similarly low-blood metal ion levels at 10-years follow-up of total hip arthroplasties with Oxinium, CoCrMo, and stainless steel femoral heads. Data from a randomized clinical trial
Høl, Paul Johan; Hallan, Geir; Furnes, Ove Nord; Fenstad, Anne Marie; Indrekvam, Kari; Kadar, Thomas (Journal article; Peer reviewed, 2022)The use of inert head materials such as ceramic heads has been proposed as a method of reducing wear and corrosion products from the articulating surfaces in total hip arthroplasty, as well as from the stem-head taper ... -
Skrivegruppa for PhD-kandidatar under biomaterialparaplyen
Høl, Paul Johan (UPED-skrift nr. ?/2007, Working paper, 2007) -
Strength of Pulvertaft modifications: tensile testing of porcine flexor tendons
Strandenes, Eivind; Ellison, Peter; Mølster, Anders; Gjerdet, Nils Roar; Moldestad, Irene Ohlen; Høl, Paul Johan (Peer reviewed; Journal article, 2019)The aim of the study was to present two new modifications of the Pulvertaft weave, allowing a higher number of weaves without the need for a longer overlap. The mechanical properties were measured and compared with the ... -
Strength of side-to-side and step-cut repairs in tendon transfers: biomechanical testing of porcine flexor tendons
Strandenes, Eivind; Ellison, Peter; Mølster, Anders; Gjerdet, Nils Roar; Moldestad, Irene Ohlen; Høl, Paul Johan (Journal article; Peer reviewed, 2020)The aim of the study was to compare side-to-side with step-cut repairs to determine how much of the width it is possible to remove and still keep the repair strong enough to start active mobilization. Porcine flexor tendons ... -
Wear particles and ions from cemented and uncemented titanium-based hip prostheses-A histological and chemical analysis of retrieval material
Grosse, Susann; Haugland, Hans Kristian; Lilleng, Peer Kåre; Ellison, Peter; Hallan, Geir; Høl, Paul Johan (Peer reviewed; Journal article, 2014-07-23)Wear debris-induced inflammation is considered to be the main cause for periprosthetic osteolysis in total hip replacements (THR). The objective of this retrieval study was to examine the tissue reactions and exposure to ...