Risk factors for periprosthetic femoral fracture risk around a cemented polished taper-slip stem using an osteoporotic composite bone model.
| Autor: | Jain S; Chapel Allerton Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK.; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK., Lamb JN; Chapel Allerton Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK.; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK., Drake R; Chapel Allerton Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK., Entwistle I; Department of Radiography, University of Bradford, Bradford, UK., Baren JP; Department of Radiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK., Thompson Z; School of Mechanical Engineering, University of Leeds, Leeds, UK., Beadling AR; School of Mechanical Engineering, University of Leeds, Leeds, UK., Bryant MG; School of Mechanical Engineering, University of Leeds, Leeds, UK., Shuweihdi F; School of Dentistry, University of Leeds, Leeds, UK., Pandit H; Chapel Allerton Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK.; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK. |
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| Jazyk: | angličtina |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine [Proc Inst Mech Eng H] 2024 Mar; Vol. 238 (3), pp. 324-331. Date of Electronic Publication: 2024 Jan 18. |
| DOI: | 10.1177/09544119231225172 |
| Abstrakt: | This biomechanical study aimed to determine if variations in stem material, stem geometry, stem offset and cement viscosity affect mechanical resistance to postoperative periprosthetic fracture (PFF) after hip arthroplasty with a commonly used cemented polished taper-slip (PTS) stem (CPT, Zimmer Biomet) in a novel osteoporotic composite femoral bone model. Thirty-six osteoporotic composite femoral models were tested using a standardised in-vitro loading technique to simulate a typical PFF. Outcome measures were torque to failure (N), fracture energy (N/m 2 ) and rotation to failure (°). Comparisons were made by stem material (cobalt chrome vs stainless steel), stem geometry (CPT stem vs Exeter stem), stem offset (standard offset vs extra extended offset) and cement viscosity (high viscosity vs low viscosity). Statistical comparisons were carried out with significance set at p < 0.05. All tested samples produced clinically representative fracture patterns with varying degrees of bone and cement comminution. There was no statistically significant difference in torque to failure, fracture energy or rotation to failure between any of the compared variables (all p > 0.05). This is the first biomechanical study on mechanical resistance to PFF using osteoporotic composite bone models. For the CPT stem, it confirms that stem material, stem offset, stem geometry and cement viscosity do not affect mechanical resistance to PFF in an osteoporotic bone model. Competing Interests: Declaration of conflicting interestsThe author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: The following authors declare the following conflicting interests none of which are directly related to the scientific content within this manuscript. Hemant Pandit is a consultant for Zimmer Biomet, Medacta, Smith & Nephew, Invibio, Paradigm Biopharma, Allay Therapeutics, JRI Orthopaedics and Microport. Sameer Jain has received research funding from Leeds Hospitals Charities. |
| Databáze: | MEDLINE |
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