Compressive osseointegration into a custom acetabular implant masquerading as tumor recurrence: A case report tumor

Adam J. Schwartz, Christopher P. Beauchamp

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Background: Compressive osseointegration is a durable method of method of achieving fixation in long-bone reconstruction, and radiographic findings are well described. The radiographic appearance of integration into the pelvis is poorly defined in the available literature. Case Description: We describe a 50-year-old man with a localized chondrosarcoma of the pelvis treated with wide resection and reconstruction using a custom acetabular device that used compressive osseointegration for fixation. A linear area of sclerosis was identified at the patient's 3-month followup surveillance film, which was concerning for tumor recurrence. We used PET-CT to document the absence of worrisome hypermetabolism and to support our suspicion that the abnormalities seen on a surveillance CT scan represented bony integration into the custom acetabular component rather than tumor recurrence. Literature Review: The use of FDG-PET for staging and surveillance of chondrosarcoma is presently evolving. Several articles suggest it may be useful in differentiating low-grade chondrosarcoma from benign lesions. Purposes and Clinical Relevance: We found PET-CT useful to differentiate the midterm radiographic appearance of the remodeling produced by compressive implant osseointegration from local recurrence.

Original languageEnglish (US)
Pages (from-to)878-882
Number of pages5
JournalClinical orthopaedics and related research
Volume471
Issue number3
DOIs
StatePublished - Mar 2013

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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