Geir Hallan Selected Research

Hip Prosthesis

1/2022	Risk factors for revision surgery due to dislocation within 1 year after 111,711 primary total hip arthroplasties from 2005 to 2019: a study from the Norwegian Arthroplasty Register.
4/2015	Wear particles and ions from cemented and uncemented titanium-based hip prostheses-a histological and chemical analysis of retrieval material.
11/2012	Head material influences survival of a cemented total hip prosthesis in the Norwegian Arthroplasty Register.

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Geir Hallan Research Topics

Disease

18	Infections 01/2022 - 12/2009
5	Osteoarthritis 01/2019 - 04/2010
4	Pain (Aches) 01/2022 - 04/2016
3	Femoral Fractures (Femoral Fracture) 01/2022 - 10/2013
3	Prosthesis Failure 01/2019 - 11/2012
3	Osteolysis 01/2019 - 08/2006
2	Rheumatoid Arthritis 01/2015 - 04/2010
1	Hip Osteoarthritis (Coxarthrosis) 01/2022
1	Acquired Immunodeficiency Syndrome (AIDS) 01/2022
1	Periprosthetic Fractures 01/2020
1	Proximal Femoral Fractures 01/2020
1	Femoral Neck Fractures 07/2019
1	Inflammation (Inflammations) 04/2015
1	Necrosis 10/2012

Drug/Important Bio-Agent (IBA)

9	3,5-tetrahydroaldosterone sulfate (THAS)IBA 01/2021 - 12/2009
5	Anti-Bacterial Agents (Antibiotics)IBA 01/2021 - 10/2012
3	Polyethylene (Polythene)IBA 01/2019 - 08/2006
3	MetalsIBA 01/2019 - 11/2012
1	4-hexyloxyaniline (HOA)IBA 01/2022
1	Bone Cements (Bone Glue)IBA 01/2021
1	Biomarkers (Surrogate Marker)IBA 01/2019
1	TeaIBA 02/2018
1	TitaniumIBA 04/2015
1	IonsIBA 04/2015
1	CoagulaseIBA 01/2014
1	CobaltIBA 11/2012
1	ChromiumIBA 11/2012
1	Aluminum Oxide (Sapphire)IBA 11/2012

Therapy/Procedure

15	Hip Replacement Arthroplasty (Total Hip Replacement) 01/2022 - 08/2006
15	Arthroplasty 01/2022 - 08/2006
4	Knee Replacement Arthroplasty (Total Knee Replacement) 01/2021 - 04/2010
3	Prostheses and Implants (Prosthesis) 01/2022 - 08/2006
3	Hip Prosthesis 01/2022 - 11/2012
3	Reoperation 01/2019 - 02/2018
2	Debridement 12/2020 - 01/2019
2	Operative Surgical Procedures 03/2016 - 10/2011
1	Activities of Daily Living (ADL) 01/2022
1	Physical Therapy Modalities (Physical Therapy Technique) 01/2022
1	Orthotic Devices (Orthosis) 01/2022
1	Therapeutics 01/2022
1	Wheelchairs (Wheel Chair) 01/2022
1	Hemiarthroplasty 12/2016
1	Intramedullary Fracture Fixation 10/2013