The utility of repeat ultrasound imaging in the follow-up of metal-on-metal hip arthroplasty patients
| Autor: | Lesley Brash, DJ Dunlop, S Janardhan, Paul Pynsent, Gulraj S. Matharu, S L J James |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male medicine.medical_specialty Arthroplasty Replacement Hip Lesion volume 03 medical and health sciences Postoperative Complications 0302 clinical medicine medicine Humans 030212 general & internal medicine Aged Retrospective Studies Ultrasonography Aged 80 and over 030222 orthopedics Hip business.industry Ultrasound Retrospective cohort study General Medicine Middle Aged Prosthesis Failure Equipment Failure Analysis Hip arthroplasty Metal-on-Metal Joint Prostheses Ultrasound imaging Female Surgery Hip Prosthesis Radiology Lower Limb business Cohort study |
| Zdroj: | The Annals of The Royal College of Surgeons of England. 98:143-149 |
| ISSN: | 1478-7083 0035-8843 |
| DOI: | 10.1308/rcsann.2016.0052 |
| Popis: | Introduction We assessed changes in metal-on-metal hip arthroplasties (MoMHAs) after repeat ultrasound examination. Methods This retrospective, single-centre cohort study involved all patients undergoing two ultrasound examinations of the same MoMHA. Between 2010 and 2014, 96 ultrasound examinations were performed in 48 MoMHAs (mean time between scans = 1.1 years). A radiologist assigned each scan to one of four grades and measured volumes of any solid/cystic masses. Changes in grade and lesion volume between scans were analysed. Results Change in grade between scans was significant (p=0.012); 27% (n=13) of MoMHAs increased in grade, 67% (n=32) had no grade change, and 6% (n=3) decreased in grade. The mean increase in lesion volume was 24.2cm3 by the second scan, and was significant (p=0.023). Evidence of progression in findings was observed in 54% (26/48) of MoMHAs. Of patients with normal scans initially, 44% (8/18) developed abnormalities. No factors (including blood metal ion concentrations and cup position) were associated significantly with progression of ultrasound findings. Conclusions Repeat ultrasound in MoMHA patients demonstrated that findings frequently progress in the short-term. Therefore, regular surveillance of MoMHA patients is important, with ultrasound representing an effective investigation for identifying the development and progression of lesions. |
| Databáze: | OpenAIRE |
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