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Published on: January 17, 2018
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Radiological features of dropped head syndrome
1Department of Orthopedic Surgery, Kobe Rosai Hospital, Kobe, Japan. hiroshimiyamoto@hotmail.com.
Summary
This study reveals key radiological features distinguishing Dropped Head Syndrome (DHS). Compensatory mechanisms in DHS primarily involve the craniovertebral and thoracic spine, varying individually.
Area of Science:
- Radiology
- Orthopedics
- Spine Surgery
Background:
- Dropped Head Syndrome (DHS) presents with characteristic radiological findings.
- Understanding regional and global radiological specificities is crucial for DHS diagnosis.
Purpose of the Study:
- To elucidate the specific radiological features of Dropped Head Syndrome (DHS).
- To analyze regional and global aspects of DHS radiological presentation.
Main Methods:
- Lateral spinopelvic radiographs of 53 DHS patients and 21 controls were analyzed.
- Radiological parameters including sagittal vertical axis (SVA) and spinal slopes were measured and compared.
- Compensatory and decompensatory sites were identified in DHS patients.
Main Results:
- Significant differences in SVA, C2-7 SVA, T1-slope-C2-7 angle, and C1 slope were observed between DHS patients and controls.
- SVA, C2-7 SVA, T1-slope-C2-7 angle, and C1 slope were identified as key factors specific to DHS.
- The craniovertebral junction (93%) and thoracic spine (70%) were major sites of compensation in DHS.
Conclusions:
- Radiological features of DHS show distinct regional and global patterns.
- Individual variations in compensatory and decompensatory mechanisms are evident in DHS.
- The craniovertebral and thoracic junctions serve as primary compensation sites in Dropped Head Syndrome.
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