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Accuracy and precis...
Accuracy and precision of a CT method for assessing migration in shoulder arthroplasty : an experimental study
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- Brodén, Cyrus (författare)
- Department of Surgery and Cancer, Imperial College London, St Mary’s Hospital, London, UK2Karolinska Institutet, Department of Clinical Sciences, Danderyd Hospital, Division of Orthopaedics, Stockholm, Sweden
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- Giles, Joshua W. (författare)
- Department of Mechanical Engineering, University of Victoria, Victoria, BC, Canada4Mechatronics in Medicine Laboratory, Mechanical Engineering, Imperial College London, London, UK
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- Popat, Ravi (författare)
- Department of Bioengineering, Imperial College London, London, UK
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- Fetherston, Shirley (författare)
- Department of Radiology, St Mary’s Hospital, Imperial College Healthcare NHS Trust, London, UK
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- Olivecrona, Henrik (författare)
- Karolinska Institutet, Sweden,Department of Molecular Medicine and Surgery, Section of Orthopaedics and Sport Medicine
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- Sandberg, Olof (författare)
- Sectra, Linköping, Sweden
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- Maguire Jr., Gerald Q. (författare)
- KTH,Kommunikationssystem, CoS
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- Noz, Marilyn E. (författare)
- New York University, Department of Radiology,Nuclear Medicine
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- Sködenberg, Olof (författare)
- Karolinska Institutet
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- Emery, Roger (författare)
- Department of Surgery and Cancer, Imperial College London, St Mary’s Hospital, London, UK
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(creator_code:org_t)
- 2019-11-04
- 2019
- Engelska.
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Ingår i: Acta Radiologica. - : Sage Publications. - 0284-1851 .- 1600-0455.
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- Background: Radiostereometric analysis (RSA) is the gold standard to measure early implant migration which is a predictive factor for implant survival. Purpose: To validate an alternative computed tomography (CT) technique to measure implant migration in shoulder arthroplasty. Material and Methods: A cadaver proximal humerus and a scapula, which had tantalum beads incorporated within them, were prepared to accept a short-stemmed humeral component and a two-pegged glenoid component of a commercial total shoulder arthroplasty (TSA) system. A five degree of freedom micrometer and goniometer equipped rig was used to translate and rotate the implant components relative to the respective bone to predetermined positions. Double CT examinations were performed for each position and CT motion analysis software (CTMA) was used to assess these movements. The accuracy and precision of the software was estimated using the rig’s micrometers and goniometers as the gold standard. The technique’s effective dose was also assessed. Results: The accuracy was in the range of 0.07–0.23 mm in translation and 0.22–0.71° in rotation. The precision was in the range of 0.08–0.15 mm in translation and 0.23–0.54° in rotation. The mean effective dose for the CT scans was calculated to be 0.27 mSv. Conclusion: In this experimental setting, accuracy, precision, and effective dose of the CTMA technique were found to be comparable to that of RSA. Therefore, we believe clinical studies are warranted to determine if CTMA is a suitable alternative to traditional RSA for migration measurements in TSA.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kirurgi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Surgery (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Nyckelord
- Computed tomography
- radiostereometric analysis
- shoulder arthroplasty
- total shoulder replacement
- migration
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Till lärosätets databas
- Av författaren/redakt...
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Brodén, Cyrus
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Giles, Joshua W.
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Popat, Ravi
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Fetherston, Shir ...
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Olivecrona, Henr ...
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Sandberg, Olof
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visa fler...
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Maguire Jr., Ger ...
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Noz, Marilyn E.
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Sködenberg, Olof
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Emery, Roger
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visa färre...
- Om ämnet
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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och Kirurgi
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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och Radiologi och bi ...
- Artiklar i publikationen
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Acta Radiologica
- Av lärosätet
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Kungliga Tekniska Högskolan
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Karolinska Institutet