Abstract
Purpose
The diagnostic tool for Kümmell’s disease (KD), including the intravertebral vacuum cavity on imaging, is still limited. The purpose of this study was to find other magnetic resonance imaging (MRI) findings that could help the diagnosis of KD.
Methods
A total of 289 patients (103 males and 186 females with a mean age of 69 ± 15 years) with thoracolumbar compression fracture were included. Medical records were reviewed to note symptom duration. MRIs were analyzed for intraosseous cavities (IOC), prevertebral soft-tissue changes (PreSC), posterior wall fracture (PoF), and posterior ligamentous complex tear (PLCT). KD was diagnosed based on surgical findings or clinical report. MRI findings and symptom duration in the presence or absence of KD were compared with chi-squared test, logistic regression, and Student’s t-test and area under the curve (AUC) analyses.
Results
KD was diagnosed in 55 cases. IOC was noted in 33 (60%) cases in the KD group and 82 (35%) cases in non-KD group. Definite PreSC was noted in 44 (80%) cases in the KD group and 94 (40%) cases in the non-KD group. PoF was seen in 36 (65%) and 140 (60%) cases, and PLCT was seen in 7 (13%) and 26 (11%) cases in KD and non-KD groups, respectively. The IOC and PreSC MRI findings were significantly correlated with KD (p < 0.001), but not with PoF (p = 0.539) or PLCT (p = 0.814). AUC of combined IOC and PreSC was 0.72, higher than that of IOC alone (0.63) or PreSC alone (0.69) (both p < 0.001). The average duration of symptom was 64 days in the KD group and 14 days in the non-KD group (p < 0.001). Positive IOC and PreSC findings were associated with longer symptom duration (p < 0.001).
Conclusions
Prevertebral soft-tissue changes and intraosseous cavity are associated with KD. Combined findings of prevertebral soft-tissue changes and intraosseous cavity can help the diagnosis of KD.
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Abbreviations
- ON:
-
Osteonecrosis
- KD:
-
Kümmell’s disease
- IVC:
-
Intravertebral cleft
- IOC:
-
Intraosseous cavities
- PreSC:
-
Prevertebral soft-tissue changes
- PoF:
-
Posterior wall fracture
- PLCT:
-
Posterior ligamentous complex tear
- PLC:
-
Posterior ligamentous complex
- T1WI:
-
T1-weighted image
- T2WI:
-
T2-weighted image
- NPV:
-
Negative predictive value
- PPV:
-
Positive predictive value
- PACS:
-
Picture archiving and communication systems
- EMR:
-
Electronic medical records
- ESR:
-
Electronic erythrocyte sedimentation rate
- CRP:
-
c-Reactive protein
- WBC:
-
White blood cell count
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All authors contributed to the study. Conceptualization: Sheen-Woo Lee; methodology, Sheen-Woo Lee; formal analysis and investigation: Sung Hyun Yu, Sheen Woo Lee, and Yu Mi Jung; writing — initial draft of the manuscript: Sung Hyun Yu; review and editing: Sheen-Woo Lee, Yu Mi Jung; ethics committee approval: Sung Hyun Yu, Yu Mi Jung; two first authors contributed in similar degree in this study. Supervision: Sheen Woo Lee. All authors read and approved the final manuscript.
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This research study was conducted retrospectively from data obtained for clinical purposes, and was approved by the Institutional Review Board (approval no: GCIRB2021-223). The waiver of informed consent was granted from the institutional IRB.
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This research study was conducted from data obtained for clinical purposes, and informed consent was waived.
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This retrospective research study was conducted from data obtained for clinical purposes, and informed consent was waived.
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Sung Hyun Yu is first author, and Yu Mi Jung is co-first author.
Highlights
• Concurrent MRI finding of intraosseous cavity, the prevertebral soft tissue change can help diagnose Kümmell’s disease (KD).
• Combining intraosseous cavity, an important finding in KD, with prevertebral findings, may facilitate earlier diagnosis.
• KD has no significant association with posterior wall fracture or PLC injury.
Supplementary Information
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234_2022_2976_MOESM1_ESM.jpg
Supplementary file1 (JPG 206 KB) Supplementary figure. A PreSC thickness was measured on the solid soft-tissue lesion on sagittal T1-weighted images (arrow) outside the boundary of dark cortical bone outline, effacing the prevertebral fat tissue around the anterior longitudinal ligament and segmental vessel.
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Yu, S.H., Jeong, Y.M. & Lee, SW. Revisiting Kümmell’s disease: MRI findings beyond the intraosseous cavity for improved diagnosis. Neuroradiology 64, 1681–1688 (2022). https://doi.org/10.1007/s00234-022-02976-z
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DOI: https://doi.org/10.1007/s00234-022-02976-z