Good correlation of the maximal relative bone tracer uptake in SPECT/CT and intraoperative findings of chondral lesions graded with the ICRS

Aims and Objectives: It is a pertinent question if SPECT/CT is able to reflect the cartilage status of the knee. Hence, it was the purpose of this study to evaluate the correlation between maximal relative bone tracer uptake (mrBTU) of preoperative SPECT/CT and intraoperative findings of chondral le...

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Bibliographic Details
Published in:Orthopaedic journal of sports medicine 2019-06, Vol.7 (6_suppl4)
Main Authors: Schiapparelli, Filippo-Franco, Ammann, Nora, Rasch, Helmut, Amsler, Felix, Hirschmann, Michael
Format: Article
Language:English
Subjects:
Arthritis
Cartilage
Knee
Orthopedics
Sports medicine
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Summary:Aims and Objectives: It is a pertinent question if SPECT/CT is able to reflect the cartilage status of the knee. Hence, it was the purpose of this study to evaluate the correlation between maximal relative bone tracer uptake (mrBTU) of preoperative SPECT/CT and intraoperative findings of chondral lesions assessed with the International Cartilage Repair Society (ICRS) scoring. Materials and Methods: Thirty-three consecutive patients (male: female=11: 22; mean age ± standard deviation 61±15) with bi- or tri-compartmental osteoarthritis of the knee who underwent SPECT/CT before total knee arthroplasty (TKA) were included. The knee was divided into 11 anatomical regions. In each region, mrBTU values were calculated twice by two observers within a six weeks interval. The intraclass correlation coefficient (ICC) was calculated and mean values were used. Intraoperatively, for every region the cartilage status with regards to ICRS score was assessed. A non-parametrical Spearman’s correlation was performed. A factor analysis was performed on mrBTU and ICRS scores (p
ISSN:2325-9671
2325-9671
DOI:10.1177/2325967119S00219