Journal of Postgraduate Medicine
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Year : 2020  |  Volume : 66  |  Issue : 4  |  Page : 215-217

Retained pelvic pin site debris after navigated total hip replacement: Masquerading as an early-stage chondrosarcomatous lesion

Department of Orthopaedic Surgery, Lyell McEwin Hospital, SA, Australia

Correspondence Address:
A P Kurmis
Department of Orthopaedic Surgery, Lyell McEwin Hospital, SA
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jpgm.JPGM_605_20

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Once purely the domain of knee surgery, the use of computer-navigated techniques in total hip arthroplasty (THA) is becoming progressively more commonplace. As with the adoption of any new technology-assisted approach, the uptake of navigated THA utilization has heralded a new suite of technique-specific potential complications. One such example – not usually seen with conventional instrumented THA – pertains to complications related to the insertion and use of fixed pelvic array trackers. This case report describes the unusual circumstance of retained local bony debris generated through application of self-drilling, self-tapping iliac crest pins (for rigid navigation tracker placement) being mis-interpreted on advanced imaging - at a hospital site remote from the index surgery - as an aggressive, early-stage, chondrosarcomatous lesion. This case highlights the critical importance of both a general awareness of common imaging findings after navigated THA surgery (whereby tracker pins have been employed) and the value of 'hands on' clinical assessment of patients to allow correlation with suspicious imaging findings.


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Online since 12th February '04
2004 - Journal of Postgraduate Medicine
Official Publication of the Staff Society of the Seth GS Medical College and KEM Hospital, Mumbai, India
Published by Wolters Kluwer - Medknow