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Tibial fractures treated with mono-lateral fixation: Principles of design and application (2024)
Journal Article
Ogrodnik, P. J., Thomas, P. B. M., & Collingwood, A. (2024). Tibial fractures treated with mono-lateral fixation: Principles of design and application. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 238(2), 187-197. https://doi.org/10.1177/09544119231215998

This paper presents the outcome of a data review of patients treated with the IOS external fixation system at the Royal Stoke University Hospital: a fixation designed to meet four requirements for external fixation proposed in this paper. Demographic... Read More about Tibial fractures treated with mono-lateral fixation: Principles of design and application.

Determining the ideal osteotomy for stemless total shoulder replacement – a cadaveric study (2021)
Journal Article
McClelland, D., Blackwell, J. R., O’Beirne, S., Grocott, N. E., & Ogrodnik, P. (2022). Determining the ideal osteotomy for stemless total shoulder replacement – a cadaveric study. Journal of Shoulder and Elbow Surgery, 31(2), 413-419. https://doi.org/10.1016/j.jse.2021.08.018

Hypothesis: To determine the angle of osteotomy that produces a circular humeral cut surface. Methods: 49 cadaveric shoulders, from 25 cadavers, underwent sequential humeral head osteotomy from 180 degrees (vertical, in line with the humeral diaphys... Read More about Determining the ideal osteotomy for stemless total shoulder replacement – a cadaveric study.

Effect of journal cylindricity error with saddle or drum distribution on the performance of hydrodynamic journal bearing systems (2019)
Journal Article
Li, B., Zhou, D., Ogrodnik, P., & Xu, W. (2020). Effect of journal cylindricity error with saddle or drum distribution on the performance of hydrodynamic journal bearing systems. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 234(7), 1092-1105. https://doi.org/10.1177/1350650119876221

The present study investigates the effect of cylindricity error on the performance of hydrodynamic journal bearing systems. Two types of cylindricity errors of the journal, namely the drum shape distribution cylindricity error (DCE) and the saddle sh... Read More about Effect of journal cylindricity error with saddle or drum distribution on the performance of hydrodynamic journal bearing systems.

Pin-site Care And Innovations In Practice: The Royal Stoke University Hospital Experience. (2018)
Journal Article
Ogrodnik, P., & McBride, A. (2018). Pin-site Care And Innovations In Practice: The Royal Stoke University Hospital Experience. Orthopaedic and Trauma Times, 19 - 27

This paper presents the Royal Stoke University Hospital pin-site care protocol. It has evolved during 25 years of fracture management research at the centre and has been developed in accordance with the RCN Consensus Guidelines on Pin-Site Care. Howe... Read More about Pin-site Care And Innovations In Practice: The Royal Stoke University Hospital Experience..

Metaphysis (2017)
Journal Article
Ogrodnik, P. (2017). Metaphysis

Medium- and long-term results of high tibial osteotomy using Garches external fixator and gait analysis for dynamic correction in varus osteoarthritis of the knee. (2016)
Journal Article
McClelland, D., Barlow, D., Moores, T., Wynn-Jones, C., Griffiths, D., Ogrodnik, P., & Thomas, P. (2016). Medium- and long-term results of high tibial osteotomy using Garches external fixator and gait analysis for dynamic correction in varus osteoarthritis of the knee. The Bone & Joint Journal, 98-B(5), 601 - 607. https://doi.org/10.1302/0301-620X.98B5.34875

In arthritis of the varus knee, a high tibial osteotomy (HTO) redistributes load from the diseased medial compartment to the unaffected lateral compartment. We report the outcome of 36 patients (33 men and three women) with 42 varus, arthritic knees... Read More about Medium- and long-term results of high tibial osteotomy using Garches external fixator and gait analysis for dynamic correction in varus osteoarthritis of the knee..

Effect of journal out-of-roundness on stability of a symmetric hydrodynamic journal bearing system. Part 1: Theoretical analysis (2015)
Journal Article
Xu, W., Ogrodnik, P., Li, B., Zhang, H., & Gao, S. (2015). Effect of journal out-of-roundness on stability of a symmetric hydrodynamic journal bearing system. Part 1: Theoretical analysis. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 229(11), 1347-1358. https://doi.org/10.1177/1350650115579211

The study examines the effect of journal out-of-roundness on the dynamic performance of rotating machines supported by oil film bearings. A general model of a symmetric hydrodynamic journal bearing system allowing for journal out-of-roundness is pres... Read More about Effect of journal out-of-roundness on stability of a symmetric hydrodynamic journal bearing system. Part 1: Theoretical analysis.

Effect of journal out-of-roundness on stability of a symmetric hydrodynamic journal bearing system. Part 2: Experimental investigation (2015)
Journal Article
Xu, W., Ogrodnik, P. J., Li, B., Zhang, H., & Gao, S. (2015). Effect of journal out-of-roundness on stability of a symmetric hydrodynamic journal bearing system. Part 2: Experimental investigation. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 229(11), 1359-1371. https://doi.org/10.1177/1350650115579677

Part 2 of the study furthers the research and aims to present evidences from an experimental investigation. The work presents the experimental research with a rig for examining the effect of journal out-of-roundness on the dynamic performance of a sy... Read More about Effect of journal out-of-roundness on stability of a symmetric hydrodynamic journal bearing system. Part 2: Experimental investigation.

A multidirectional fracture stiffness model to determine the principal stiffness properties of a healing human tibia (2013)
Journal Article
Ogrodnik, P. J., Thomas, P. B., Moorcroft, C. I., & Mohammed, K. N. (2013). A multidirectional fracture stiffness model to determine the principal stiffness properties of a healing human tibia. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 227(10), 1125-1134. https://doi.org/10.1177/0954411913495789

A model for the stiffness of a fractured human tibia has been developed. The model is based on Mohr’s circle of inertia and relies on tibial fracture stiffness being measured in a number of planes. Using in vitro data, it has been shown that this mod... Read More about A multidirectional fracture stiffness model to determine the principal stiffness properties of a healing human tibia.