Evaluation of bone viability in patients after girdlestone arthroplasty: comparison of bone SPECT/CT and MRI

G. Diederichs, P. Hoppe, F. Collettini, G. Wassilew, B. Hamm, W. Brenner, M. R. Makowski

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Purpose: To test the diagnostic performance of bone SPECT/CT and MRI for the evaluation of bone viability in patients after girdlestone-arthroplasty with histopathology used as gold standard. Materials and methods: In this cross-sectional study, patients after girdlestone-arthroplasty were imaged with single-photon-emission-computed-tomography/computed-tomography (SPECT/CT) bone-scans using 99mTc-DPD. Additionally, 1.5 T MRI was performed with turbo-inversion-recovery-magnitude (TIRM), contrast-enhanced T1-fat sat (FS) and T1-mapping. All imaging was performed within 24 h prior to revision total-hip-arthroplasty in patients with a girdlestone-arthroplasty. In each patient, four standardized bone-tissue-biopsies (14 patients) were taken intraoperatively at the remaining acetabulum superior/inferior and trochanter major/minor. Histopathological evaluation of bone samples regarding bone viability was used as gold standard. Results: A total of 56 bone-segments were analysed and classified as vital (n = 39) or nonvital (n = 17) by histopathology. Mineral/late-phase SPECT/CT showed a high sensitivity (90%) and specificity (94%) to distinguish viable and nonviable bone tissue. TIRM (sensitivity 87%, specificity 88%) and contrast-enhanced T1-FS (sensitivity 90%, specificity 88%) also achieved a high sensitivity and specificity. T1-mapping achieved the lowest values (sensitivity 82%, specificity 82%). False positive results in SPECT/CT and MRI resulted from small bone fragments close to metal artefacts. Conclusions: Both bone SPECT/CT and MRI allow a reliable differentiation between viable and nonviable bone tissue in patients after girdlestone arthroplasty. The findings of this study could also be relevant for the evaluation of bone viability in the context of avascular bone necrosis.

Original languageEnglish
Pages (from-to)1249-1258
Number of pages10
JournalSkeletal Radiology
Volume46
Issue number9
DOIs
StatePublished - 1 Sep 2017
Externally publishedYes

Keywords

  • Bone scan
  • Bone viability
  • Girdlestone arthroplasty
  • MRI
  • SPECT/CT

Fingerprint

Dive into the research topics of 'Evaluation of bone viability in patients after girdlestone arthroplasty: comparison of bone SPECT/CT and MRI'. Together they form a unique fingerprint.

Cite this